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ìàBACKGROUND€INFORMATION€FORˆÌà@ ìàPROMULGATED€STANDARDSˆÌÌÌÔ‡*XlÿXXLXlÿÔò òDisclaimeró ó:€òòThis€report€is€issued€by€the€Office€of€Air€QualityÐ ð @ ÐPlanning€and€Standards,€U.S.€Environmental€Protection€Agency.€ÏMention€of€trade€names€or€commercial€products€is€not€intended€toÏconstitute€or€endorsement€or€recommendation€for€use.€€Copies€ofÏthis€report€are€available€free€of€charge€as€supplies€permit€fromÏthe€Library€Services€Office€(MD„35),€U.S.€EnvironmentalÏProtection€Agency,€Research€Triangle€Park,€NC€27711,€(919)€541„¼2777,€from€the€National€Technical€Information€Service,€5285€PortÏRoyal€road,€Springfield,€Virginia€22161,€(703)€487„4650,€or€fromÏthe€Ô_ÔinternetÔ_Ô€(http://www.epa.gov/ttn/).óóÔ#†LXlÿXX*Xlÿs#ÔÐ  `° Ðà@¨ ¨ ìàà@@¨ ¨ ìàEnvironmental€Protection€AgencyˆÌÌÌà@ ìàCONSOLIDATED€FEDERAL€AIR€RULEˆÌà@ä ä ìàFOR€SYNTHETIC€ORGANIC€CHEMICALˆÌà@ÄÄìàMANUFACTURING€INDUSTRYˆÌÌÌà@Ô Ô ìàÔ‡*XlÿXXLXlÿÔBACKGROUND€INFORMATION€FORˆÐ ð @ Ðà@ ìàPROMULGATED€STANDARDSÔ#†LXlÿXX*XlÿS #ԈР¸   ÐÌÌÌPrepared€by:ÌÌÌòò€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€óóà0 p àà0Èp(#p(#àòò€€€€€€€€€€€€€€€€€€€óóÐ0€ È(#È(# ÐRick€Colyerà ¸ àà  àà h àà À àà  àà p àà È àà  àà x àDateÐ øH  ÐU.S.€Environmental€Protection€AgencyÌResearch€Triangle€Park,€N.C.€€27711ÌÌÌà  à1.€€The€promulgated€consolidated€Federal€air€rule€provides€aÏcompliance€option€to€several€standards€previously€promulgatedÏunder€Sections€111€and€112€of€the€Clean€Air€Act.€€It€acts€toÏconsolidate€similar€rules€that€apply€to€the€same€types€ofÏemission€points€at€an€industrial€site,€thereby€eliminatingÏdifferences€among€these€rules€and€reducing€burden.€€One€ofÏPresident€Clintonððs€and€Vice€President€Goreððs€reinventingÏenvironmental€regulation€initiatives€directs€EPA€to€consolidateÏFederal€air€rules,€so€that€Federal€air€rules€for€a€singleÏindustry€would€be€incorporated€into€a€single€rule.€€This€ruleÏwould€consist€of€ð ð...one€set€of€emission€limitations,€monitoring,Ïand€recordkeeping€and€reporting€requirements.ððÌÌà  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(#àCAR€OBJECTIVES€AND€BURDEN€REDUCTIONà‚#À!À!H(#.ÈÈ7` (#` (##à2„2݃9!ù # ÝŒˆÐ ð @ ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ù!Ýà0  àà0` (#(#àà  àÝ  Ý2.2à ` àSCOPE€à‚#À!À!H(#.0 0 ` (#` (##à2„7݃9!ù!"!ÝŒˆÐ ¸   ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚á!Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.2.1€Incorporating€or€Allowing€Other€Rules€Ýƒ:›‚á!ü!݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚Á"Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ýà0¸ ¸ (#¸ (#à€in€the€CARà‚#À!À!H(#.àà$¸ (#¸ (##à2„7à‚#@(#(#K(#. ¸ (#¸ (##à݃:›‚Á"Ü"ÝŒˆÐ H ˜  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚Ü#Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.2.2€Miscellaneous€Scope€Commentsà‚#H!H!G(#.PP6¸ (#¸ (##à2„12݃:›‚Ü#÷#ÝŒˆÐ `  ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùØ$Ýà0  àà0` (#(#àà  àÝ  Ý2.3à ` àAPPLICABILITYà‚#H!H!G(#.xx!` (#` (##à2„14݃9!ùØ$ó$ÝŒˆÐ Ø(  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚º%Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.3.1€SOCMI€CAR€Unità‚#H!H!G(#.ÀÀ(¸ (#¸ (##à2„14݃:›‚º%Õ%ÝŒˆÐ  ð  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚¨&Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.3.2€Pointer€Paragraphs€in€Referencing€Subpartsà‚#H!H!G(#.ààD¸ (#¸ (##à2„18݃:›‚¨&Ã&ÝŒˆÐ h¸  ÐŒÝ  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(#(#àà  àÝ  Ý3.3à ` àPROCESS€VENTSà‚#H!H!G(#.xx!` (#` (##à3„32݃9!ùû./ÝŒˆÐ 8ˆ ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùÝ/Ýà0  àà0` (#(#àà  àÝ  Ý3.4à ` àTRANSFER€RACKSà‚#H!H!G(#.ðð"` (#` (##à3„40݃9!ùÝ/ø/ÝŒˆÐ P ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùÀ0Ýà0  àà0` (#(#àà  àÝ  Ý3.5à ` àEQUIPMENT€LEAKSà‚#H!H!G(#.hh#` (#` (##à3„43݃9!ùÀ0Û0ÝŒˆÐ È ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚¤1Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.1€€Leak€Detectionà‚#H!H!G(#.88)¸ (#¸ (##à3„43݃:›‚¤1¿1ÝŒˆÐ à ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚“2Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.2€€Leak€Repairà‚#H!H!G(#.ÐÐ&¸ (#¸ (##à3„45݃:›‚“2®2ÝŒˆÐ X¨ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚3Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.3€€Delay€of€Repairà‚#H!H!G(#.°°*¸ (#¸ (##à3„48݃:›‚3š3ÝŒˆÐ  p ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚o4Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.4€€Valves„„Difficult„€and€Unsafe„to„Monitorà‚#H!H!G(#.hhC¸ (#¸ (##à3„48݃:›‚o4Š4ÝŒˆÐ è8 ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚x5Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.5€€Valves„„Subgrouping€and€Monitoring€Ýƒ:›‚x5“5݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚V6Ýà0  àà0` (#(#àà0¸ ` (#` 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ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚O7Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.6€€Valves„„Other€Commentsà‚#H!H!G(#.øø1¸ (#¸ (##à3„52݃:›‚O7j7ÝŒˆÐ @" ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚F8Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.7€€Pumps„„Percent€Leaking€Pumps€Calculationà‚#H!H!G(#.hhC¸ (#¸ (##à3„54݃:›‚F8a8ÝŒˆÐ  X# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚O9Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.8€€Pumps„„Visual€Inspectionsà‚#H!H!G(#.``4¸ (#¸ (##à3„56݃:›‚O9j9ÝŒˆÐ Ð $ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚I:Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.9€€Pumps„„Other€Commentsà‚#H!H!G(#.€€0¸ (#¸ (##à3„58݃:›‚I:d:ÝŒˆÐ ˜!è% ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚?;Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.10€Connectors„„Exemptions€to€the€Connector݃:›‚?;Z;݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚!<Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ýà0¸ ¸ (#¸ (#à€€Standardsà‚#H!H!G(#.àà$¸ (#¸ (##à3„61݃:›‚!<<<ÝŒˆÐ (#x' ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚=Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.11€Connectors„„Other€Commentsà‚#H!H!G(#.ØØ5¸ (#¸ (##à3„64݃:›‚=5=ÝŒˆÐ ð#@( ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚>Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.12€Monitoring€Instrument€Proceduresà‚#H!H!G(#.¨¨;¸ (#¸ (##à3„65݃:›‚>0>ÝŒˆÐ ¸$ ) ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚?Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.13€Compressorsà‚#H!H!G(#.ÐÐ&¸ (#¸ (##à3„67݃:›‚?1?ÝŒˆÐ €%Ð * ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚@Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.14€Sampling€Connection€Systemsà‚#H!H!G(#.PP6¸ (#¸ (##à3„68݃:›‚@@ÝŒˆÐ H&˜!+ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚þ@Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.15€Enclosed„Vented€Process€Unitsà‚#H!H!G(#.@@8¸ (#¸ (##à3„69݃:›‚þ@AÝŒˆÐ '`", ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚üAÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.16€Batch€Product„„Processesà‚#H!H!G(#.èè3¸ (#¸ (##à3„70݃:›‚üABÝŒˆÐ Ø'(#- ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚õBÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.17€Periodic€Report€Contentsà‚#H!H!G(#.èè3¸ (#¸ (##à3„71݃:›‚õBCÝŒˆÐ  (ð#. ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚îCÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.18€Alternatives€and€Exemptionsà‚#H!H!G(#.PP6¸ (#¸ (##à3„73݃:›‚îC DÝŒˆÐ h)¸$/ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚êDÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.19€Other€Equipment€Leak€Commentsà‚#H!H!G(#.@@8¸ (#¸ (##à3„73݃:›‚êDEÝŒˆÐ  0*€%0  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚ìEÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý݃:›‚ìEF݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ù FÝà0  àà0` (#(#àà  àÝ  Ý3.6à ` àCLOSED€VENT€SYSTEMS€AND€CONTROL€DEVICESà‚#H!H!G(#.¨¨;` (#` (##à3„75݃9!ù F»FÝŒˆÐ „ È ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚œGÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.6.1€€Performance€Testsà‚#H!H!G(#.  ,¸ (#¸ (##à3„75݃:›‚œG·GÝŒˆÐ L  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚ŽHÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.6.2€€Control€Requirementsà‚#H!H!G(#./¸ (#¸ (##à3„77݃:›‚ŽH©HÝŒˆÐ  X ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚ƒIÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.6.3€€Monitoring,€Recordkeeping,€and€Reportingà‚#H!H!G(#.hhC¸ (#¸ (##à3„81݃:›‚ƒIžIÝŒˆÐ Ü  ÐŒÝ  ÝÝ‚8ÿÿÿÝÝ  ÝÝ‚8ÿÿŒJÝÌà0  àà ° àÝ  Ý4.0€IMPLEMENTATION€AND€TITLE€V€à‚#À!À!H(#.88)(#(##à4„1݃8ÿÿŒJ§JÝŒˆÐ l ° ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ù]KÝà0  àà0` (#(#àà  àÝ  Ý4.1€€IMPLEMENTATIONà h àà‚#À!À!H(#.hh#` (#` (##à4„1݃9!ù]KxKÝŒˆÐ 4x ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùALÝà0  àà0` (#(#àà  àÝ  Ý4.2à ` àTITLE€Và‚#À!À!H(#.¨ ¨ ` (#` (##à4„4݃9!ùAL\LÝŒˆÐ ü@ ÐŒÝ  ÝÝ‚8ÿÿÿÝÝ  ÝÝ‚8ÿÿMÝÌà0  àà ° àÝ  Ý5.0€€CHANGES€TO€THE€EQUIPMENT€LEAKS€REFERENCING€SUBPARTSà‚#À!À!H(#.ððB(#(##à5„1݃8ÿÿM7MÝŒˆÐ ŒÐ  ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùNÝà0  àà0` (#(#àà  àÝ  Ý5.1à ` àCLARIFICATION€OF€INTENTà‚#À!À!H(#.((+` (#` (##à5„1݃9!ùN!NÝŒˆÐ T˜  ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùñNÝà0  àà0` (#(#àà  àÝ  Ý5.2à ` àCLARIFYING€OR€TYPOGRAPHICAL€EDITSà‚#À!À!H(#.ØØ5` (#` (##à5„6݃9!ùñN OÝŒˆÐ `  ÐŒÝ  ÝÝ‚8ÿÿÿÝÝ  ÝÝ‚8ÿÿæOÝÌà0  àà ° àÝ  Ý6.0€€MISCELLANEOUSà‚#À!À!H(#. (#(##à6„1݃8ÿÿæOPÝŒˆÐ ¬ð  ÐŒÝ  ÝÓ {ÓÐ  t¸  ÐÙÙÑ€<ÑØØÖ€DDÖÓ€Óà@ìì*ìàˆ¹Ó  ÓÌÓ8QÓÓ  ÓÌÌÔ  Ô1.0€€INTRODUCTIONÔ cQÔÌÌÌÓUQÓà  àOn€October€28,€1998,€the€U.S.€Environmental€ProtectionÏAgency€(EPA)€proposed€the€ð ðConsolidated€Federal€Air€Rule€(CAR):ÏSynthetic€Organic€Chemical€Manufacturing€Industryðð€(63€FR€57748).€ÏThe€Consolidated€Federal€Air€Rule€(CAR)€is€a€consolidation€ofÏFederal€air€rules€affecting€the€synthetic€chemical€organicÏmanufacturing€industry€(SOCMI).€€We€selected€the€Federal€airÏrules€applying€to€the€SOCMI€for€a€pilot€project€to€study€theÏfeasibility€and€practical€implications€of€consolidating€andÏstreamlining€existing€rules,€and€to€establish€a€workable€processÏfor€consolidation€that€can€be€applied€to€other€consolidationÏefforts€in€the€future.€€The€CAR€is€one€of€the€initiativesÏannounced€by€President€Clinton€and€Vice€President€AlGore€onÏMarch€16,€1995€to€reinvent€environmental€regulation.Ìà  àWe€solicited€public€comments€on€the€success€of€this€pilotÏproject€as€measured€against€the€10€principles€for€reinventingÏenvironmental€regulation,€which€are€listed€in€the€proposalÏpreamble€(63€FR€57792).€€We€received€comments€on€these€issues€asÏwell€as€other€issues€raised€by€the€commenters.€€We€also€solicitedÏpublic€comments€on€whether€the€CAR€meets€specific€goals,€whichÏare€discussed€in€sections€VI€and€XII€of€the€proposal€preambleÏ(63FR€57759€and€57792).€€A€public€hearing€was€offered,€but€noneÏwas€requested.€€At€the€request€of€several€parties,€we€reopenedÏthe€comment€period€for€30€days€so€that€all€parties€could€haveÏadditional€time€to€prepare€comments€on€the€proposed€rule.€€TheÏEPA€received€written€public€comments€from€the€commenters€listedÏin€table€1.Ìà  àThis€document€summarizes€the€comments€received€and€presentsÏEPAððs€responses.€€The€comments€have€been€grouped€into€sections€byÐ ˆ,Ø'D Ðsubject.€€Section€2.0€contains€comments€of€a€general€nature,€suchÏas€those€addressing€the€scope,€applicability,€structure,€andÏformat€of€the€rule.€€Section€3.0€presents€comments€specific€toÏeach€of€the€subparts€of€the€proposed€rule€(general€provisions,Ïstorage€vessels,€process€vents,€transfer€racks,€equipment€leaks,Ïand€closed€vent€systems€and€control€devices).€€Section€4.0€listsÏcomments€on€implementation€issues€and€title€V€interaction.€ÏSection€5.0€hosts€the€comments€EPA€received€on€the€proposedÏchanges€to€the€equipment€leaks€referencing€subparts.€€Finally,Ïsection€6.0€concludes€by€listing€miscellaneous€comments.ÌÌÐ  ”ä  ÐÓ  ÓÓ€ÓTABLE€1.€€LIST€OF€COMMENTERSÌÌÓøZÓÔ*‹ƒG?Hddd Xdd Xdd X°(#°(#‹ÔÔ,m dd ÔÔ, dd ÔÔ+  ÔÐ $ @ €€„„$ÐDocument€NumberÐ '¤ô „„'ÐCommenterÐ #¤ô  #ÐIV„D„01Ð  (x ÐÔ‡*XlÿXXLXlÿÔB.M.€Higgins,€Chair,€STAPPA€Air€ToxicsÐ (x ÐCommittee,€and€R.H.€Colby,€Chair,ÏALAPCO€Air€Toxics€Committee,€State€andÏTerritorial€Air€Pollution€ProgramÏAdministrators/Association€of€LocalÏAir€Pollution€Control€OfficialsÔ#†LXlÿXX*Xlÿ±\#ÔÔ‡*XlÿXXLXlÿÔÐ  `  Ð(Request€to€extend€comment€period.)Ð  Ø (  ÐIV„D„02Ð  4„  ÐN.L.€Morrow,€Safety€and€EnvironmentalÏAffairs€Division,€Exxon€ChemicalÏAmericas€(ECA),€Houston,€TXÌÔ#†LXlÿXX*XlÿÜ]#ÔÔ‡*XlÿXXLXlÿÔ(Request€to€extend€comment€period.)Ô#†LXlÿXX*Xlÿê^#ÔÔ‡*XlÿXXLXlÿÔÐ  ŒÜ  ÐIV„D„03Ð  è8  ÐComments€of€Millennium€SpecialtyÏChemicals,€Inc.€(MSC)€and€Bush€BoakeÏAllen,€Inc.€(BBA)€(collectively,€theÏTerpene€Processors),€submitted€by€H.T.ÏVinyard,€Jr.,€Counsel,€Smith,€Hulsey€&ÏBusey,€Jacksonville,€FLÐ  Ð  ÐIV„G„01Ð  ,| ÐL.€Platt,€EH&S€Regulatory€ManagementÏExpertise€Center,€Dow€ChemicalÏCompany,€Freeport,€TXÐ  ¼  ÐIV„G„02Ð  h ÐSupplemental€comments€by€L.€Platt,ÏEH&S€Regulatory€Management€ExpertiseÏCenter,€Dow€Chemical€Company,ÏFreeport,€TX€(duplicate)Ð  pÀ! ÐVI„D„01Ð  Ì" ÐB.€Mathur,€Chief,€Bureau€of€Air,ÏIllinois€Environmental€ProtectionÏAgency,€Springfield,€ILÐ  \¬% ÐVI„D„02Ð  ¸ & ÐN.L.€Morrow,€Exxon€Chemical€AmericasÏ(ECA),€Houston,€TXÐ  €!Ð( ÐVI„D„03Ð  Ü",) ÐR.I.€Zvaners,€Senior€Manager,ÏEnvironmental€Policy,€ChemicalÏManufacturers€Association€(CMA),ÏArlington,€VAÐ  4%„ - ÐVI„D„04Ð  &à!. ÐJ.L.€Woolbert,€Technical€Associate,ÏEastman€Chemical€Company,€Longview,€TXÐ  X'¨"0 ÐVI„D„05Ð  ´($1 ÐN.€Dee,€Director,€EnvironmentalÏAffairs,€National€Petrochemical€&ÏRefiners€Association€(NPRA),ÏWashington,€DCâ âÐ   +\&5 ÐVI„D„06Ð  ˜d Ðâ âB.M.€Higgins,€Chair,€STAPPA€Air€ToxicsÏCommittee,€and€R.H.€Colby,€Chair,ÏALAPCO€Air€Toxics€Committee,€State€andÏTerritorial€Air€Pollution€ProgramÏAdministrators/Association€of€LocalÏAir€Pollution€Control€OfficialsÐ  € L ÐVI„G„01Ð  Ü ¨ ÐComments€of€Stepan€Company,€submittedÏby€P.F.€Sharkey,€Attorney,€Mayer,ÏBrown,€&€Platt,€Chicago,€ILÐ  l 8  ÐVI„G„02Ð  È”  ÐJ.S.€Pew,€Attorney,€Earthjustice€LegalÏDefense€Fund,€Washington,€DCÐ  \  ÐVI„G„03Ð  ì¸  ÐJ.€Marsh,€Regulatory€Affairs€Director,ÏChemical€Industry€Council€of€IllinoisÏ(CICI),€Rosemont,€ILÐ  |H  ÐVI„G„04Ð  ؤ  ÐSupplemental€comments€of€StepanÏCompany,€submitted€by€P.F.€Sharkey,ÏAttorney,€Mayer,€Brown,€&€Platt,ÏChicago,€IL€(duplicate)Ð  0ü ÐVI„G„05Ð  ŒX ÐN.€Carlson€Manager,€EnvironmentalÏPrograms,€Elf€Atochem€North€America,ÏInc.,€Philadelphia,€PAÔ#†LXlÿXX*XlÿO_#ÔÔ‡*XlÿXXLXlÿÔÐ è  ÐÔ#†LXlÿXX*Xlÿbh#ÔÐ  à ÐØØÑ€=<ÑÓ€ÓÌÌÌÌÓ  ÓÔ  Ô2.0€€GENERALÔ iÔÌÌÌÓiÓòòà  àCommentóó:€€Several€commenters€(VI-D-02,€VI-D-03,€VI-D-04,Ð ä 4 ÐVI-D-06)€commended€our€efforts€in€developing€the€CAR.€€OneÏcommenter€(VI-D-03)€praised€the€process€we€used€to€achieve€thisÏproposed€rule€and€encouraged€using€the€CAR€development€process€asÏa€model€in€other€rulemaking€activities.€Ìà  àòòResponseóó:€€We€appreciate€this€supporting€comment€and€agreeÐ À Ðthat€lessons€learned€from€the€CAR€development€process€will€beÏapplied€in€any€future€consolidation€efforts.€€Ìà  àòòCommentóó:€Several€commenters€(IV-G-01,€VI-G-03,€VI-D-03,Ð D” ÐVI-D-06,€VI-D-01)€support€our€proposal€of€making€the€CAR€anÏoptional€compliance€method.€€One€commenter€(IV-G-01)€citedÏseveral€examples,€some€from€the€preamble€of€the€proposed€rule,€ofÏwhy€the€CAR€should€be€optional.€€Another€commenter€(VI-D-03)Ïindicated€that€the€CAR€will€neither€benefit€all€facilities€norÏbenefit€all€facilities€equally,€therefore€facilities€will€need€toÏdetermine€the€benefit€of€the€CAR€on€a€case-by-case€basis.€€OneÏcommenter€(VI-D-06)€pointed€out€that€by€making€the€CAR€optional,Ïthe€CAR€affords€industry€a€reasonable€amount€of€flexibility€whileÏmaintaining€current€stringency€levels€and€avoiding€an€excessivelyÏcomplex€rule.Ìà  àòòResponseóó:€€We€appreciate€this€supporting€comment€and€noteÐ T$¤6 Ðthat€the€final€rule€retains€the€CAR€as€an€optional€complianceÏmethod.€€We€also€agree€that€the€CAR€would€not€necessarily€benefitÏevery€source€and€that€your€decisions€will€be€made€on€a€case„by„¼case€basis.Ìà  àòòCommentóó:€€One€commenter€(VI-D-06)€encouraged€us€to€developÐ 0*€%@ Ðconsolidated€air€rules€for€other€industry€sectors€in€the€future.€ÏThe€commenter€(VI-D-06)€suggested€that€rules€applying€to€surfaceÐ ˆ,Ø'D Ðcoating€operations€would€be€amendable€to€this€more€efficientÏcompliance€mechanism.Ìà  àòòResponseóó:€€We€will€monitor€how€this€pilot€consolidated€ruleÐ X Ðfor€the€SOCMI€is€received.€€Depending€on€its€popularity€andÏeffectiveness,€we€may€expand€the€current€rule€or€develop€otherÏconsolidated€rules,€given€available€resources.€ÌÌÔ  Ô2.1€CAR€OBJECTIVES€AND€BURDEN€REDUCTIONÔ ÐqÔÌà  àòòCommentóó:€€Two€commenters€(VI-D-02,€VI„D„03)€agree€that€theÐ `  ÐCAR€contains€explicit€solutions€for€many€troublesome€overlapÏissues€among€existing€regulations.€€Specifically,€the€commenterÏ(VI-D-03)€believes€the€CAR:€€(1)facilitates€implementation€andÏcompliance€by€clarifying€requirements,€(2)explicitly€describesÏhow€to€determine€applicability€and€rule€overlap€using€a€detailedÏlevel€of€analysis€rather€than€a€generic€level,€and€(3)addressesÏmany€overlap€issues€that€had€not€been€resolved€before€thisÏproposal€using€a€logical,€consistent,€and€rational€approach.Ìà  àòòResponseóó:€€We€thank€the€commenters€for€their€support€of€theÐ œì" Ðapproach€taken€by€the€CAR€to€reduce€confusion€regarding€overlapÏof€existing€regulations.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€agrees€that€the€CAR€meetsÐ  p( Ðthe€President's€objectives€for€rule€consolidation.€€Specifically,Ïthe€commenter€stated€that€the€CAR€incorporates€the€burdenÏreduction€options€allowed€in€earlier€rules€and€extends€theÏbenefits€to€other€compliance€areas.€€The€commenter€stated€thatÏthe€CAR€also€accomplishes€the€reinvention€objective€by€providingÏa€more€user„friendly€structure€and€format€and€throughÏclarification€and€simplification.€€Another€commenter€(IV-G-01)Ïstated€that€the€CAR€goes€a€long€way€in€reducing€conflicting€andÏoverlapping€requirements,€but€does€not€eliminate€them€which€isÏone€of€the€Presidentððs€objectives:€€to€"eliminate€conflicting€andÏoverlapping€Federal€air€compliance€requirements."Ìà  àòòResponseóó:€€We€appreciate€feedback€from€the€commenterÐ 0*€%@ Ðregarding€meeting€the€Presidentððs€objectives€for€ruleÏconsolidation.€€We€maintain,€however,€that€all€overlap€issuesÐ ˆ,Ø'D Ðhave€been€eliminated€for€the€rules€that€are€consolidated€in€theÏCAR.€€Not€all€rules€have€been€included€and€further€discussion€onÏthe€decisions€made€regarding€the€rules€to€include€in€the€CAR€isÏin€section2.2,€Scope.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€agreed€that€the€CARÐ ` ° Ðprovides€a€single€set€of€recordkeeping,€reporting,€and€monitoringÏrequirements€by€consolidating€the€requirements€of€several€rulesÏinto€one€rule.€€This€consolidation€provides€a€significantÏreduction€in€burden;€for€example,€the€consolidated€provisionsÏrequire€periodic€reporting€only€twice€annually.€€Two€commentersÏ(VI-D-02€and€VI-D-06)€asserted€that€the€consolidation€ofÏmonitoring,€reporting€and€recordkeeping€requirements€will€resultÏin€simplifying€regulatory€requirements,€encouraging€sourceÏcompliance€with€the€regulations,€and€providing€a€clearerÏoversight€role€for€the€implementing€agencies.€€Ìà  àòòResponseóó:€€We€thank€the€commenters€for€this€feedbackÐ D” Ðregarding€the€CARððs€consolidated€recordkeeping,€reporting,€andÏmonitoring€requirements.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€indicated€that,€asÐ È$ Ðcurrently€proposed,€the€CAR€does€not€eliminate€all€instances€ofÏoverlapping€requirements.€€The€commenter€(VI„G„03)€gave€anÏexample€when€a€product€accumulator€vessel€(either€distillate€orÏbottoms)€is€also€used€to€store€material,€it€is€subject€to€bothÏsubpartsV€and€FF€of€40CFRpart61.€€SubpartV€requires€productÏaccumulator€vessels€to€be€equipped€with€closed€vents€and€controlÏdevices,€but€subpartFF€does€not€limit€controls€to€closed€ventsÏand€control€devices.€€The€commenter€further€stated€that€subpartVÏrequired€leaks€in€the€closed€vent€system€to€be€repaired€withinÏ5days,€whereas€subpartFF€allows€these€units€to€leak€for€up€toÏ45days€before€repairs€are€required.€€The€commenter€(VI-G-03)Ïrecommended€that€the€CAR€should€directly€address€issues€such€asÏthe€multiple€uses€of€a€product€accumulator€vessel€and€shouldÏâ âeliminate€persistent€conflicts€under€existing€regulations.Ð 0*€%@ ÐÔ& ¸ Ôâ âà  àòòResponseóó:€The€provisions€of€40CFR€part61,€subpartFF€applyÐ ° Ðto€waste€management€units.€€The€provisions€of€40CFR€part61,ÏsubpartV€apply€to€surge€control€vessels€and€bottoms€receivers.€ÏThe€decision€as€to€which€rule€applies€would€have€already€beenÏmade€prior€to€using€the€CAR.€€The€commenter€did€not€elaborate€onÏthe€situation€where€one€vessel€could€be€subject€to€both€rules€andÏwe€can€not€identify€a€situation€where€this€might€happen.€€Also,ÏsubpartFF€is€not€within€the€scope€of€the€CAR;€all€overlappingÏprovisions€have€been€eliminated€among€the€rules€consolidated€inÏthe€CAR.€€Ô'¸ °AÔÌà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€that€the€degreeÐ h¸  Ðof€burden€reduction€from€using€the€CAR€has€not€beenÏsubstantiated.€€The€commenter€(IV-G-01)€further€asserted€thatÏburden€reductions€from€the€CAR€will€vary€from€facility€toÏfacility€and€that,€even€if€the€overall€average€burden€reductionÏis€significant,€the€reduction€to€any€one€facility€may€be€so€smallÏthat€it€would€not€offset€the€additional€time,€effort,€and€expenseÏnecessary€to€train€personnel€to€use€the€CAR.€€Such€facilities€mayÏchoose€not€to€use€the€CAR.Ìà  àòòResponseóó:€€We€agree€with€the€comment€that€burden€reductionsÐ ôD& Ðfrom€using€the€CAR€will€vary€among€facilities€and€the€burdenÏreduction€to€any€one€facility€may€not€offset€the€time,€effort,Ïand€expense€of€training€personnel€to€use€the€CAR.€€SuchÏfacilities€may€choose€not€to€use€the€CAR.€€However,€we€point€outÏthat€not€all€facilities€will€fall€into€this€category.€€ManyÏfacilities€will€incur€a€benefit€from€using€the€CAR,€especiallyÏthose€subject€to€several€of€the€referencing€subparts.€€While€theÏtrue€burden€reduction€of€any€proposed€rule€cannot€be€known€priorÏto€the€rule's€promulgation€and€implementation,€we€have€made€everyÏeffort€to€reasonably€estimate€the€burden€reduction€attributableÏto€the€CAR.€€We€maintain€that€several€benefits€can€be€obtained€byÏsources€complying€with€the€CAR€as€described€in€the€proposalÏpreamble€at€63FR57790.€€Each€source€can€assess€its€benefits€andÏdecide€whether€to€use€the€CAR€as€a€compliance€option.€€TheseÏbenefits€were€not€questioned€by€the€commenter.Ð ˆ,Ø'D Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€indicated€that€switchingÐ ° Ðfrom€compliance€with€one€rule€to€compliance€with€another€ruleÏrequires€a€steep€learning€curve€on€the€part€of€company€andÏfacility€personnel.€€The€commenter€(IV-G-01)€suggested€that€anyÏtime€such€a€switch€occurs€there€is€increased€potential€forÏnoncompliance€until€the€facility€becomes€sufficiently€experiencedÏwith€the€new€rule.€€The€commenter€(IV-G-01)€suggested€that€thisÏwould€be€a€particular€concern€with€the€CAR,€because€it€is€moreÏdetailed€in€some€respects€than€the€rules€it€would€replace.Ìà  àòòResponseóó:€€We€concur€with€the€commenter's€assertion€that€theÐ <Œ  ÐCAR€will€require€a€learning€curve€on€the€part€of€company€andÏfacility€personnel.€€However,€the€provisions€in€the€CAR€are€basedÏon€provisions€in€the€referencing€subparts€with€which€sources€mustÏalready€comply.€€Therefore,€company€and€facility€personnel€shouldÏfind€that€they€are€familiar€with€most€of€the€provisions€in€theÏCAR.€€Where€these€provisions€differ€is€usually€a€reduction€inÏburden€or€an€increase€in€flexibility,€or€a€limited€increase€inÏburden,€such€as€with€the€requirements€for€halogen€scrubbers.€€AnyÏsource€believing€that€the€learning€curve€is€too€steep€canÏcontinue€to€comply€with€the€existing€subparts€with€which€they€areÏfamiliar.€€Additionally,€a€source€considering€using€the€CAR€canÏtake€any€amount€of€time€necessary€before€making€the€decision€toÏdo€so.€€Therefore,€we€do€not€concur€that€there€will€be€anÏincrease€in€misunderstanding€of€compliance€obligations.€€It€isÏimportant€to€remember€that,€at€all€times,€facilities€must€be€inÏcompliance€either€with€the€referencing€subparts€or€the€CAR.€€WhenÏchoosing€to€comply€with€the€CAR,€facilities€are€obligated€toÏcomply€with€the€applicable€referencing€subparts€until€the€CAR€isÏimplemented.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€alleged€that€the€CAR'sÐ ¬&ü!: Ðimposition€of€more€stringent€control€requirements€is€aÏsubstantial€disincentive€to€using€the€CAR.€€The€commenterÏ(VI-G-03)€contended€that€we€should€reconsider€whether€theÏâ âconsolidation€of€procedural€requirements€such€as€monitoring€andÐ \+¬&B Ðreporting€necessarily€requires€application€of€the€most€stringentÏlevel€of€control€at€any€given€SOCMI€CAR€unit(SCU).€€Ìâ âà  àOne€commenter€(VI-D-03)€accepts€the€imposition€of€a€halogenÏscrubber€requirement€for€some€new€source€performance€standardÏ(NSPS)€process€vents,€because€it€is€acceptable€to€have€occasionalÏincreased€stringency€as€a€trade„off€for€the€rule€simplicityÏprovided€by€the€CAR,€particularly€since€the€CAR€is€an€optionalÏrule.Ìà  àòòResponseóó:€€The€commenter€(VI-G-03)€did€not€specify€theÐ `  Ðincreases€in€stringency€that€are€substantial€disincentives€toÏusing€the€CAR.€€However,€we€assume€the€commenter€is€referring€toÏthe€proposed€increase€in€control€stringency€due€to€controlledÏfittings€being€applied€to€40CFR€part60,€subparts€Ka€and€KbÏtanks;€halogen€vent€stream€control€applied€to€40CFRpart60,ÏsubpartsIII,€NNN,€and€RRR€process€vents€and€40CFR€part61,ÏsubpartBB€transfer€racks;€and€instrument€monitoring€forÏconnectors€applied€to€connectors€subject€to€40CFR€part60,ÏsubpartVV€and€40CFR€part61,€subpartV.€€In€these€cases,€weÏproposed€an€increase€in€control€stringency€because€maintainingÏthe€differences€in€stringency€would€have€made€for€a€veryÏcomplicated€rule€that€was€not€actually€a€consolidation.€€Also,Ïthe€stringency€could€not€be€decreased€for€the€most€stringent€ruleÏbecause€this€would€cause€less€emissions€to€be€controlled€thanÏrequired€by€the€most€stringent€rule.€€Ìà  àWe€agree€with€the€commenter€(VI-D-03)€that€the€optionalÏnature€of€the€CAR€alleviates€concern€with€the€rare€increases€inÏstringency.€€We€also€maintain€that€the€level€of€burden€associatedÏwith€the€control€of€additional€fittings€and€control€ofÏhalogenated€vent€streams€is€small€when€considering€that€theÏnumber€of€SOCMI€tanks€and€halogenated€vent€streams€that€would€notÏbe€subject€to€the€hazardous€organic€NESHAP€(HON)€is€small.€€ThereÏare€few€SOCMI€sources€that€would€experience€this€increase€inÏstringency.€€Also,€if€an€individual€source€would€not€experience€aÏnet€benefit€from€using€the€CAR,€there€is€no€requirement€forcingÏthe€source€into€the€CAR.€€With€the€change€in€the€final€ruleÐ ˆ,Ø'D Ðeliminating€the€SCU€concept€(see€section2.3.1)€and€allowing€anyÏsource€or€affected€facility€subject€to€a€referencing€subpart€toÏopt€into€the€CAR,€there€is€even€more€flexibility€for€a€facilityÏto€use€the€CAR€only€where€it€benefits€the€facility.Ìà  àFor€connectors,€however,€we€have€been€persuaded€that€theÏincrease€in€burden€of€instrument€connector€monitoring€for€sourcesÏnot€subject€to€the€HON€but€subject€to€40CFR€part60,€subpartVVÏor€40CFR€part61,€subpartV€could€be€a€substantial€disincentiveÏto€using€the€CAR€for€these€sources.€€We€have€provided€alternativeÏprovisions€to€the€proposed€instrument€connector€monitoring€thatÏfollow€the€inspection€requirements€for€connectors€in€subpartsVÏand€VV.€€These€alternative€provisions€are€an€option€forÏconnectors€subject€to€subpartsV€or€VV€but€not€the€HON.€€SeeÏsection3.5.10€for€further€discussion€on€the€change€to€theÏconnector€provisions.€€ÌÔ  ÔÌ2.2à  àSCOPE€Ô »žÔÐ pÀ  ÐÔ  Ô2.2.1€€òòIncorporating€or€Allowing€Other€Rules€in€the€CARóóÔ ŸÔÐ œì" Ðà  àòòCommentóó:€€Several€commenters€(IV-G-01,€VI-D-02,€VI-D-03,Ð È$ ÐVI-D-04,€VI-D-05)€support€increasing€the€scope€of€the€CAR€so€thatÏit€completely€incorporates€other€rules€applicable€to€SOCMIÏsources.€€All€of€these€commenters€(IV-G-01,€VI-D-02,€VI-D-03,ÏVI-D-04,€VI-D-05)€specifically€mentioned€the€HON€wastewaterÏprovisions€(40CFR€part63,€subpartG);€four€of€the€commentersÏ(VI-D-02,€VI-D-03,€VI-D-04,€VI-D-05)€specifically€mentioned€theÏBenzene€Waste€NESHAP€provisions€(40€CFR€part61,€subpartFF);€andÏthree€commenters€(IV-G-01,€VI-D-02,€VI-D-04)€specificallyÏmentioned€the€SOCMI€wastewater€NSPS€(40CFR€part60,ÏsubpartYYY).€€One€commenter€(IV-G-01)€requested€consolidation€ofÏseveral€other€rules€affecting€SOCMI€including€HON€Group2Ïtransfer€racks€and€storage€vessels,€emission€points€not€requiringÏcontrol€under€the€non„HON€referencing€subparts,€marine€loadingÏunder€40CFR€part61,€subpartBB,€and€equipment€leak€provisionsÏunder€resource€conservation€and€recovery€act€(RCRA)€rulesÏsubpartBB.€€One€commenter€(IV-G-01)€argued€that,€withoutÐ ˆ,Ø'D Ðincluding€additional€regulations€in€the€consolidation,€the€CARÏcannot€achieve€its€goals€of€(1)having€a€single€set€ofÏconsolidated€requirements€for€the€SOCMI,€and€(2)reducing€theÏcomplexities€of€overlapping€regulations€among€different€FederalÏair€programs.€€The€commenter€(IV-G-01)€alleges€that€sources,€inÏmost€cases,€have€no€incentive€to€use€the€CAR€and€concludes€thatÏthe€CAR€must€consolidate€several€additional€rules€in€order€toÏprovide€this€incentive.€€Ìà  àFour€commenters€(VI-D-01,€VI-D-02,€VI-D-03,€VI-D-05)€wereÏspecifically€interested€in€consolidating€all€rules€that€may€applyÏto€a€facility€that€has€a€SOCMI€process€unit€on€site.€€All€fourÏcommenters€requested€that€sources€subject€to€the€PetroleumÏRefinery€NESHAP,€40CFR€part63,€subpartCC€be€allowed€to€use€theÏCAR€to€comply€with€subpartCC.€€Two€commenters€(VI-D-02,€VI-D-03)Ïalso€referred€to€the€following€40CFR€part63€subparts€as€rulesÏthat€should€use€the€CAR€as€a€compliance€option:€€I,€U,€W,€DD,€TT,ÏOO,€UU,€WW,€and€JJJ.€€The€commenter€(VI-D-03)€encouraged€us€toÏdefine€CAR€requirements€as€acceptable€for€requirements€in€non„¼consolidated€rules€that€are€likely€to€overlap€with€the€CAR€atÏSOCMI€sites.€€The€commenter€(VI-D-03)€noted€that€one€goal€of€theÏCAR€is€to€allow€similar€and€shared€systems€at€SOCMI€facilities€toÏuse€one€set€of€compliance€requirements.€€Therefore,€the€commenterÏ(VI„D-03)€concluded€it€is€important€to€assure€that€all€rules€thatÏcould€impact€those€facilities€are€considered€in€theÏconsolidation.€€Until€these€relevant€rules€are€added€to€the€CAR,Ïthe€commenter€(VI-D-03)€argued,€the€critical€overlaps€must€beÏaddressed€because€this€is,€perhaps,€the€single€largest€impedimentÏto€facilities€adopting€the€CAR.€€The€commenter€(VI-D-03)€assertedÏthat€maximizing€the€use€of€the€CAR€will€provide€the€most€burdenÏreduction€and€compliance€assurance€for€States€and€facilities.€ÏThe€commenter€(VI-D-03)€provided€examples€of€language€from€otherÏrules€that€address€overlap€as€well€as€recommended€changes€to€theÏlanguage€of€the€CAR€at€ñüñððñüññüñððñüñ65.1(c)€and€addition€of€new€language€atÏâ âñýñððñýññýñððñýñ65.1(n).Ð \+¬&B Ðà  àòòResponseóó:€€We€agree€that€the€CAR€does€not€consolidate€allÐ ° Ðâ ârules€applicable€to€the€SOCMI€or€to€sources€with€SOCMI€processesÏon€site.€€However,€as€stated€in€the€preamble€(63FR57750),€theÏscope€of€the€CAR,€as€a€pilot€project,€was€limited€to€FederalÏClean€Air€Act€(Act)€rules€that€apply€to€SOCMI,€because€theseÏrules€would€provide€benefit€to€affected€sources,€yet€the€scopeÏwas€defined€well€enough€to€ensure€a€reasonable€chance€of€success.€ÏOther€rules€were€considered€in€this€consolidation,€but€theirÏincorporation€would€have€made€the€process€unmanageable€in€aÏreasonable€amount€of€time.€€Some€rules€considered€forÏconsolidation€were€subject€to€substantial€changes€in€litigationÏwhen€the€CAR€process€started€and€others€are€currently€inÏlitigation.€€To€include€additional€rules€in€the€consolidationÏeffort€at€this€point€would€require€a€supplemental€proposal.€€WeÏconsider€our€efforts€better€spent€finishing€this€proposal.€€WeÏmaintain€that€there€can€be€significant€burden€reduction€with€theÏrules€that€are€currently€consolidated€and€that€reduction€willÏpersuade€sources€to€use€the€CAR.€€We€do€not€agree€that€sourcesÏhave€no€incentive€to€use€the€CAR.Ìà  àòòCommentóó:€€Four€commenters€(VI-D-01,€VI-D-02,€VI-D-06,Ð ôD& ÐVI-G-03)€requested€that€we€consider€using€the€CAR€as€a€complianceÏoption€for€new€regulations.€€Two€commenters€(VI-D-01,€VI-D-02)Ïspecifically€mentioned€the€Miscellaneous€Organic€NESHAP;€oneÏcommenter€(VI-D-06)€mentioned€the€Generic€Maximum€AchievableÏControl€Technology€(MACT);€and€one€commenter€(VI-D-02)€mentionedÏthe€Ethylene€MACT.€€One€commenter€(VI-D-01)€recommended€that€anyÏnew€regulations€applicable€to€the€SOCMI€that€may€be€promulgatedÏshould€be€incorporated€into€the€CAR€for€use€by€affected€sourcesÏthat€have€opted€to€use€the€CAR.€€The€commenter€(VI-D-01)€statedÏthat€in€this€case,€additional€incorporated€rules€would€followÏpart70€on€opting€new€rules€into€a€title€V€permit€as€they€areÏpromulgated.Ìà  àòòResponseóó:€€We€may€consider€using€the€CAR€in€futureÐ 0*€%@ Ðrulemakings.€€Because€of€the€timing€of€the€generic€MACTððsÏpromulgation,€it€was€not€possible€to€consolidate€that€rule€intoÐ ˆ,Ø'D Ðthe€CAR.€€However,€the€generic€MACT€employs€similar€structure,Ïconcept,€and€provisions€as€the€CAR.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€noted€that€the€proposedÐ X Ðlanguage€in€ñýñððñýññýñððñýñ60.560(j)€and€(k)€would€not€allow€polystyreneÏprocess€vents€subject€to€40CFRpart60,€subpartDDD,€to€use€theÏCAR.€€The€commenter€pointed€out€that€similar€polyethylene€processÏvents€subject€to€subpartDDD€are€allowed€to€use€the€CAR.€€TheÏcommenter€suggested€that€this€exclusion€resulted€from€a€draftingÏproblem€and€provided€revised€language€to€allow€polyethylene€andÏpolystyrene€process€vents€the€option€of€complying€with€the€CAR.€Ìà  àòòResponseóó:€€We€agree€that€the€polystyrene€process€ventsÐ h¸  Ðsubject€to€subpartDDD€that€choose€the€control€device€or€flareÏcompliance€option€should€be€allowed€to€opt€into€the€CAR.€€We€haveÏedited€the€final€rule€to€allow€this€option.Ìà  àòòCommentóó:€€Some€commenters€(IV-G-01,€VI-D-02,€VI-D-03,Ð h ÐVI-D-04,€VI-D-06)€requested€that€rules€that€refer€to€referencingÏsubparts€should€be€allowed€to€use€the€CAR€as€a€compliance€option.€ÏThree€commenters€(IV-G-01,€VI-D-02,€VI-D-03)€specificallyÏmentioned€40CFR€part63,€subpartI€and€the€polymers€and€resinsÏMACT€standards.€€Two€commenters€(VI-D-04,€VI-D-06)€requested€anyÏMACT€standard€that€points€to€the€HON€be€allowed€the€option€toÏcomply€with€the€CAR.€€Two€commenters€(IV-D-02,€VI-D-03)€statedÏthat€subpartDDD€requires€compliance€with€subpartVV€forÏequipment€leaks.€€The€commenters€(VI-D„02,€VI-D-03)€indicatedÏthat€a€change€is€needed€in€ñýñððñýññýñððñýñ60.560€of€subpartDDD€to€make€clearÏthat€compliance€with€the€CAR€subpartF€for€equipment€leaks€isÏallowed€as€an€alternate€to€complying€with€40CFRpart60,ÏsubpartVV.€€The€commenter€(VI-D-02)€stated€that€the€CAR,€inÏgeneral,€is€unclear€on€the€situation€in€which€a€process€unit€isÏsubject€to€a€referencing€subpart€(in€this€case€subpartVV)€byÏreference€from€another€rule€(subpartDDD).€€The€commenterÏsuggested€that€we€amend€the€applicability€of€the€CAR€to€clearlyÏstate€the€options€for€these€types€of€units.€Ìà  àThe€commenter€(VI-D„03)€stated€that€additionally,€becauseÏ40CFRpart60,€subpartDDD€is€applicable€only€on€a€processÐ ˆ,Ø'D ÐÔ_Ôsection€by€process€section€basis,€a€preamble€discussion€is€neededÏrelative€to€Ô_Ôñýñððñýññýñððñýñ60.560(j)Ô_Ô€and€(k)€to€clarify€that€process€sectionsÏnot€triggering€the€applicability€of€40CFRpart60,€subpartDDDÏwill€not€become€subject€to€the€CAR€if€the€CAR€is€adopted.€TheÏcommenter€(VI-D-03)€provided€suggested€language€for€theseÏrecommended€revisions.ÌÔ& ì Ôà  àòòResponseóó:€We€have€not€expanded€the€scope€of€the€final€ruleÐ ¸   Ðto€include€other€regulations€that€refer€to€referencing€subparts.€ÏThe€details,€approach,€and€ramifications€of€allowing€the€CAR€forÏthese€other€rules€have€not€been€investigated.€€Many€of€the€rulesÏthat€point€to€the€CAR's€referencing€subparts€for€requirementsÏgenerally€have€complex€references,€with€conditions€and€exceptionsÏto€the€referencing€subparts.€€To€allow€these€rules€to€comply€withÏthe€CAR€would€require€us€to€study€the€conditions€and€exceptionsÏand€possibly€develop€detailed€references€for€compliance€with€theÏCAR.€€We€consider€our€efforts€better€spent€finishing€this€rule€soÏthat€the€burden€reductions€associated€with€it€can€be€used€as€soonÏas€possible.€€Furthermore,€expanding€the€scope€of€the€CAR€toÏother€rules€at€this€point€would€entail€additional€proposals.Ìà  àThe€proposal€preamble€contained€discussion€that€no€equipmentÏwould€become€subject€to€a€rule€just€because€the€CAR€was€used€forÏcompliance€[63€FR€57751].Ìà  àòòCommentóó:€€One€Ô'ì¸ ‡¿Ôcommenter€(VI-D-05)€requested€allowingÐ xÈ, Ðequipment€at€petroleum€refineries€subject€to€a€referencingÏsubpart€to€opt€into€the€CAR€on€the€basis€of€ease€of€complianceÏdetermination€by€all€parties,€a€reduction€in€paperwork€andÏadministrative€cost,€and€flexibility.€Ìà  àòòResponseóó:€€Under€the€proposed€CAR,€equipment€at€refineryÐ T$¤6 Ðprocesses€subject€to€referencing€subparts€that€were€on€the€sameÏplant€site€as€a€SCU€complying€with€the€CAR€could€opt€into€theÏCAR.€€However,€with€the€increase€in€flexibility€in€theÏapplicability€of€the€final€CAR€any€equipment€subject€to€aÏreferencing€subpart€can€use€the€CAR€as€a€compliance€option.€€SeeÏsection2.3€for€further€discussion€on€the€change€inÏapplicability.Ð ˆ,Ø'D ÐÔ  ÔÔ& X Ô2.2.2€€òòMiscellaneous€Scope€CommentsóóÔ ÍÆÔÐ ° Ðà  àÔ'X°ÚÆÔòòCommentóó:€€One€commenter€(VI-G-03)€asked€that€the€CAR€allowÐ Ü, Ðowners€or€operators€to€obtain€emission€reduction€credits€for€anyÏadditional€controls€required€under€the€CAR€that€are€moreÏstringent€than€the€controls€required€by€the€referencing€subparts.€ÏThe€commenter€stated€that€these€credits€would€be€in€addition€toÏthe€credits€the€unit€has€already€earned€according€to€a€voluntaryÏprogram.€€The€commenter€asserted€that€this€would€encourage€theÏuse€of€the€CAR.€€Ìà  àThe€commenter€(VI-G-03)€noted€that€SOCMI€sources€in€manyÏStates€voluntarily€apply€controls€in€excess€of€existingÏregulations€to€obtain€usable€and€marketable€emission€reductionÏcredits.€€The€commenter€(VI-G-03)€wanted€to€know€if€participantsÏin€the€State€programs€or€the€Federal€Early€Reduction€Program€willÏstill€get€credit€for€these€programs€if€they€opt€to€use€the€CAR.€ÏThe€commenter€was€concerned€that€the€CAR€would€require€an€ownerÏor€operator€to€give€up€existing€credits€or€the€ability€to€obtainÏfuture€credits€when€opting€into€the€CAR.€Ìà  àOne€commenter€(VI-G-03)€noted€that€the€monitoring€andÏrecordkeeping€requirements€for€units€subject€to€the€EarlyÏReduction€Program€in€part63,€subpartD€are€specified€in€theÏtitleV€permit€rather€than€in€the€rules€themselves.€€TheÏcommenter€stated€that€this€makes€it€unclear€whether€facilitiesÏwith€Early€Reduction€Units€can€opt€into€the€CAR.€€The€commenterÏ(VI-G-03)€supports€allowing€owners€and€operators€with€EarlyÏReduction€Units€to€opt€into€the€CAR€for€the€benefit€of€consistentÏregulation€of€storage€vessels€and€other€units.€€In€such€cases,Ïthe€commenter€stated€that€the€owner€or€operator€would€retain€theÏbenefit€of€early€reduction.Ìà  àòòResponseóó:€€The€CAR€does€not€have€an€emissions€averaging€orÐ ¬&ü!: Ðtrading€program€specifically€associated€with€it.€€Therefore,Ïthere€is€no€basis€to€establish€credits€or€debits€for€complianceÏwith€the€CAR.€€If€a€State€would€like€to€incorporate€the€CAR€intoÏtheir€voluntary€emissions€credit€program€and€the€program€does€notÏviolate€the€state€implementation€plan€(SIP)€this€is€within€theÐ ˆ,Ø'D ÐStates€purview€to€establish.€€Whether€a€State€gives€credits€forÏcompliance€with€the€CAR€depends€on€the€Stateððs€plan€and€theÏspecific€site.€€Whether€a€State€allows€sources€to€retain€existingÏcredits€or€generate€additional€credits€for€compliance€with€theÏCAR€may€affect€the€sourcesðð€decisions€to€use€the€CAR.€€It€shouldÏbe€noted,€however,€that€the€added€flexibility€of€opting€into€theÏCAR€on€an€equipment€basis€rather€than€an€SCU€(see€section2.3,ÏApplicability,€for€more€discussion€on€this)€has€given€theÏfacility€the€option€to€choose€the€equipment€complying€with€theÏCAR€that€will€give€the€most€benefit.Ìà  àThere€is€nothing€in€the€CAR€that€prohibits€all€or€part€of€anÏEarly€Reduction€Source€to€opt€into€the€CAR.€€However,€the€earlyÏreduction€limits€for€the€source€would€still€have€to€be€met€unlessÏthe€source€chooses€to€give€up€its€compliance€extension.€€Ìòòà  àCommentóó:€€One€commenter€(VI-D-04)€asserted€that€one€of€theÐ h Ðsubstantial€transition€costs€to€implement€the€CAR€at€existingÏfacilities€is€the€cost€related€to€incorporating€the€CAR€as€anÏalternative€compliance€approach€in€Part70€Operating€Permits.€ÏThe€commenter€pointed€out€that€if€the€rule€is€promulgated€veryÏsoon,€there€could€be€an€opportunity€in€the€State€of€Texas€forÏsome€SOCMI€sources€to€minimize€this€transition€cost€by€being€ableÏto€implement€the€CAR€into€their€initial€part70€permitÏapplications.€€The€commenter€recommended€that€the€rule€beÏfinalized€quickly.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€getting€the€CARÐ Ð 0 Ðout€in€a€reasonably€timely€manner€is€preferred,€not€only€so€thatÏthe€implementation€is€coordinated€with€the€Texas€TitleV€permitÏprogram,€but€also€to€allow€the€burden€reduction€opportunitiesÏprovided€to€the€Industry€to€be€used.€€We€have€processed€theÏcomments€received,€responded€to€the€comments€and€made€theÏappropriate€changes€to€the€regulation€in€a€reasonably€timelyÏmanner€given€the€complexity€of€the€rule.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€praised€the€adoption€ofÐ 0*€%@ Ðthe€CAR€styles,€structures,€and€language€models€into€the€genericÏMACT€and€other€recent€rulemaking€actions€and€encouraged€us€toÐ ˆ,Ø'D Ðcontinue€this€approach€because€it€provides€significantÏopportunity€for€burden€reductions€in€regulatory€development.Ìà  àòòResponseóó:€We€thank€the€commenter€for€their€support.€Ð X ÐÔ  ÔÌÔ& „ Ô2.3à  àAPPLICABILITYÔ )ÙÔÐ ` ° ÐÔ  Ô2.3.1€òòSOCMI€CAR€UnitóóÔ …ÙÔÐ Œ Ü  Ðà  àòòÔ'„` 7ÙÔCommentóó:€€Several€commenters€(VI-D-01,€VI-D-03,€VI-D-06,Ð ¸   ÐVI-G-03)€commented€on€the€complexity€and€the€confusion€of€eitherÏthe€SCU€definition€or€the€assignment€procedures€or€both.€€ThreeÏcommenters€(VI-D-01,€VI-D-06,€VI-G-03)€stated€that€SCU€and€whatÏconstitutes€an€SCU€are€not€clearly€defined€in€the€rule.€€Two€ofÏthe€commenters€(VI-D-01,€VI-D-06)€suggested€that€the€CAR€includeÏsome€"real€world"€examples,€as€we€did€in€the€Early€ReductionÏrules.€€Ìà  àOne€commenter€(VI-G-03)€supports€the€proposal€to€allow€theÏoption€of€using€the€CAR€on€the€basis€of€individual€SCUððs€but€saidÏfurther€clarification€was€needed.€€The€commenter€(VI-D-03)Ïsuggested€describing€an€SCU€determination€in€the€following€way:€Ï(1)as€per€the€SCU€definition,€identify€all€equipment€associatedÏwith€the€process€that€is€impacted€or€could€be€impacted€by€theÏHON,€subpartIII,€NNN,€RRR,€and/or€VV€rule€requirements,Ï(2)subject€the€identified€equipment€to€a€review€of€theÏapplicable€underlying€rules€to€determine€the€"affected"Ïequipment,€and€(3)apply€the€CAR€only€to€the€"affected"Ïequipment.Ìà  àAnother€commenter€(VI-D-01)€noted€that€the€flexibility€ofÏthe€CAR€is€manifested€in€the€ability€of€an€affected€source€toÏdefine€the€affected€chemical€manufacturing€process€unit€(CMPU)Ïand€to€be€able€to€subgroup€the€CMPU,€which€will€clearly€defineÏthe€SCU's€affected€by€the€CAR.€€The€commenter€(VI-D-01)Ïrecommended€that€the€CAR€should€encourage€this€subcategorization.Ìà  àAnother€commenter€(VI-D-06)€believes€that€the€applicabilityÏprocedures€may€prohibit€implementation€at€the€State€and€localÏlevels.€€The€commenter€(VI-D-06)€specifically€cited€theÏassignment€procedures€in€Ô_Ôñýñððñýññýñððñýñ65.1(j)Ô_Ô€and€(k)€of€the€CAR€(emissionÐ ˆ,Ø'D Ðpoints€commonly€shared€between€process€units)€as€excessivelyÏcomplicated.€€The€commenter€(VI-D-06)€suggested€that€we€considerÏa€provision€that€would€allow€groups€of€like€equipment€subject€toÏone€of€the€referencing€subparts€(such€as€transfer€racks€orÏstorage€tanks)€to€implement€the€CAR,€while€other€portions€of€theÏSCU€may€continue€to€comply€with€applicable€referencing€subparts.Ìà  àAnother€commenter€(VI-D-01)€expressed€concern€that€the€CARÏmay€be€applicable€to€only€a€fraction€of€the€tanks€at€a€facility.€ÏThe€commenter€(VI-D-01)€recommended€that€if€more€than€50percentÏof€the€storage€vessels€at€a€source€are€subject€to€the€CAR,€thenÏthe€CAR€should€cover€all€storage€vessels€at€that€source.€€TheÏcommenter€(VI-D-01)€contends€that€this€approach€will€simplifyÏapplicability,€recordkeeping,€and€reporting.€Ìà  àòòResponseóó:€€The€proposed€CAR€required€facilities€to€opt€intoÐ ì< Ðthe€CAR€on€a€SCU€basis€because€we€thought€this€would€reduceÏpotential€complexity€of€implementing€the€CAR€for€regulatoryÏauthorities.€€During€development€of€the€proposed€CAR,€StateÏrepresentatives€expressed€a€desire€to€allow€larger€portions€ofÏsources€to€opt€in€as€opposed€to€a€more€piecemeal€approach,Ïindicating€that€it€would€be€easier€for€them€to€enforce€the€rule.€ÏThey€felt€that€opting€in€on€an€SCU€basis€would€provide€a€smallÏenough€collection€of€emission€points€and€equipment€to€provideÏoperational€flexibility€to€the€facility,€but€a€large€enoughÏcollection€to€avoid€possible€confusion€and€additional€burden€forÏregulatory€authorities.Ìà  àHowever,€after€reviewing€the€comments€regarding€the€SCU€andÏassignment€procedures,€we€have€concluded€that€the€perceivedÏconfusion€and€complexity€added€by€the€SCU€assignment€proceduresÏoutweigh€the€reduction€in€burden€and€complexity€to€StateÏinspectors€by€requiring€facilities€to€opt€in€on€a€SCU€(largeÏcollection€of€equipment)€basis.€€Keeping€track€of€which€equipmentÏis€in€or€out€of€a€SCU€and€which€SCU€is€complying€with€the€CARÏappears€to€be€more€burdensome€than€keeping€track€of€whichÏemission€point€is€complying€with€what€rule€which€must€be€doneÏanyway.€€We€have€simplified€the€applicability€provisions€of€theÐ ˆ,Ø'D ÐCAR€by€allowing€in€the€final€CAR€any€affected€source€subject€to€aÏreferencing€subpart€to€use€the€CAR€as€a€compliance€option€Ô‡*XlÿXXLXlÿÔwithÐ Ü, ÐÔ_Ôñ ñò òoneó óò òñ ñtwoñ ñó óñ ñÔ_Ô€Ô_Ôexceptionñ ñò òñ ñsñ ñó óñ ñÔ_Ô€described€below.€€This€means€that€a€facility€mayÏchoose€to€opt€in,€for€example,€one€subpart€Kb€tank€or€allÏequipment€at€the€facility€that€is€subject€to€a€referencingÏsubpart.€€For€both€regulator€and€industry€personnel,€thisÏeliminates€the€assignment€procedures€that€determine€whatÏequipment€constitutes€a€SCU.€€With€this€change,€it€is€notÏnecessary€to€keep€track€of€new€regulated€sources€and€whether€theyÏare€part€of€a€SCU€or€not.Ìà  àThere€Ô_Ôñ ñò òisó óò òñ ñareñ ñó óñ ñÔ_Ô€Ô_Ôñ ñò òoneó óò òñ ñtwoñ ñó óñ ñÔ_Ô€Ô_Ôsituationñ ñò òñ ñsñ ñó óñ ñÔ_Ô€where€the€regulated€source€in€theÏCAR€does€not€match€the€affected€source€of€the€referencingÏÔ_Ôsubpart.ñ ñò òÔ_Ô€€This€is€the€case€of€40€CFR€part€61,€subpart€Ô_ÔV.ó óÔ_Ôñ ñ€Ô_Ô€Ô_Ôñ ñò òñ ñInÔ_Ô€one€situation,€Ô_Ôtñ ñó óò òTó óñ ñheÔ_Ô€affected€source€Ô_Ôforñ ñò òñ ñÔ_Ô€40€CFR€partÏÔ_Ô61,ñ ñó óñ ñÔ_Ô€subpart€V€is€an€individual€piece€of€equipment€like€a€pump€orÏa€valve.€€We€determined€that€allowing€owners€or€operators€to€optÏin€to€the€CAR€on€an€individual€piece€of€equipment€would€not€beÏworkable.€€Therefore,€owners€or€operators€must€opt€in€the€groupÏof€affected€equipment€at€a€process€unit.€€This€does€not€alter€theÏapplicability€of€subpart€V€to€a€facility;€it€only€affects€the€setÏof€equipment€that€can€comply€with€the€Ô_ÔCAR.ñ ñò òñ ñÔ_ÔÌà  àThe€second€situation€where€the€regulated€source€in€the€CARÏdoes€not€match€the€affected€source€of€the€referencing€subpart€isÏin€the€HON.€€Under€the€HON,€the€affected€source€is€the€total€ofÏall€applicable€emission€points€at€the€plant€site€that€are€subjectÏto€the€HON.€€Thus,€a€HON€facility€that€contains€more€than€oneÏCMPU,€would€consist€of€only€one€affected€source,€which€would€beÏthe€collection€of€all€subject€CMPUððs.€€However,€under€the€CAR€theÏregulated€source€is€collection€of€emission€points€within€eachÏCMPU€(as€proposed€under€the€original€concept€in€the€CAR€of€theÏSCU).€€Thus,€a€HON€facility€can€choose€to€opt€into€the€CAR€on€aÏCMPU€basis,€and€not€the€entire€collection€of€CMPUððs€that€compriseÏthe€HON€affected€Ô_Ôsource.ñ ñó óñ ñÔ_ÔÌÔ#†LXlÿXX*Xlÿê#Ôà  àAlthough€we€believe€that€in€most€cases€facilities€will€optÐ 0*€%@ Ðin€larger€groups€of€equipment€(e.g.,€most€or€all€subpartKbÏtanks),€the€States€and€owners€or€operators€have€the€opportunityÐ ˆ,Ø'D Ðto€work€together€to€determine€the€basis€on€which€facilities€canÏopt€in€their€equipment€that€will€provide€the€"best€fit"€for€bothÏregulators€and€industry.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€theÐ 4„ Ðproposal€preamble€discussion€at€63FR57757€and€57758€regardingÏthe€SCUððs€and€the€definition€of€regulated€source€carries€aÏmisleading€implication.€€The€commenter€(IV-G-01)€stated€that€theÏdiscussion€implies€that€if€one€SCU€within€a€plant€site€elects€toÏcomply€with€the€CAR,€then€all€new€and€existing€sources,Ïregardless€of€their€relation€to€the€SCU,€must€comply€with€the€CARÏif€they€are€part€of€the€same€plant€site€and€subject€to€one€of€theÏreferencing€subparts.€€The€commenter€(IV-G-01)€suggested€an€editÏto€clarify€this€issue.Ìà  àòòResponseóó:€€Because€of€the€change€in€the€applicabilityÐ ì< Ðprovisions,€the€clarification€suggested€by€the€commenter€is€noÏlonger€necessary.€€Ìà  àòòCommentóó:€€The€commenter€(VI-D-03)€asserted€thatÐ pÀ  Ðpolyethylene,€polypropylene,€and€polystyrene€units€should€beÏdefined€as€SCU's,€by€adding€40CFRpart60,€subpartDDD€to€theÏlist€of€rules€in€the€SCU€definition.€€The€commenter€argued€thatÏthis€would€clarify€the€pointers€in€subpartDDD€and€theÏrequirements€that€apply€to€these€units.€€The€commenter€statedÏthat€it€would€also€allow€stand„alone€polyethylene,€polypropylene,Ïand€polystyrene€units€to€take€advantage€of€the€CAR's€burdenÏreductions.€€The€commenter€pointed€out€that€additionally,€someÏfacilities€operate€a€number€of€stand„alone€polyethylene,Ïpolypropylene,€and€polystyrene€sites€at€sites€where€SCU's€areÏpresent.€€The€commenter€asserted€that€if€subpartDDD€units€wereÏincluded€in€the€SCU€definition,€facilities€with€these€units€couldÏuse€the€CAR€for€the€entire€site.€€The€commenter€stated€that€theÏfacility€would€not€have€to€maintain€compliance€systems€for€bothÏrules,€thereby€removing€an€impediment€to€using€the€CAR.€€WhileÏthis€would€expand€the€scope€of€the€CAR,€the€commenter€reasoned€itÏwould€allow€more€of€the€SOCMI€industry€to€take€advantage€of€theÏCAR.Ð ˆ,Ø'D Ðà  àòòResponseóó:€€Because€of€the€change€in€the€applicabilityÐ ° Ðprovisions€there€is€no€longer€a€need€to€define€the€SCU.€€AÏfacility€can€choose€to€opt€any€affected€source€or€facilityÏsubject€to€a€referencing€subpart€into€the€CAR€regardless€of€itsÏaffiliation€to€a€SCU.€€The€SCU€definition€has€been€deleted€in€theÏfinal€CAR.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€questioned€why€Ô_Ôñýñððñýññýñððñýñ65.1(i)(2)Ô_ÔÐ ¸   Ðrefers€to€subpartsVV,€III,€NNN,€and€RRR.€€The€commenter€statedÏthat€the€purpose€of€Ô_Ôñýñððñýññýñððñýñ65.1(i)(2)Ô_Ô€is€to€identify€process€unitsÏwhere€equipment€assignment€procedures€are€unnecessary,€becauseÏthe€referencing€rule€has€already€defined€the€SCU.€€The€commenterÏstated€that€the€definitions€of€process€units€contained€inÏsubpartsVV,€III,€NNN,€and€RRR€are€not€specific€enough€toÏidentify€all€of€the€equipment€that€is€part€of€the€process€unit.€ÏThe€commenter€(VI-D-02)€requested€a€revision€of€Ô_Ôñýñððñýññýñððñýñ65.1(i)Ô_Ô€toÏrequire€that€the€equipment€included€in€an€SCU€is€the€equipmentÏdefined€as€part€of€the€process€unit€in€the€referencing€subparts,Ïas€applicable,€as€well€as€any€other€equipment€that€is€part€of€theÏSCU€as€determined€by€the€assignment€rules€in€Ô_Ôñýñððñýññýñððñýñ65.1(j)Ô_Ô€throughÏ(m).Ìà  àAnother€commenter€(IV-G-01)€stated€that€the€proposalÏpreamble€(63FR57756)€contains€a€discussion€about€assignmentÏprocedures€for€assigning€transfer€operations€to€process€units.€ÏThe€commenter€(IV-G-01)€advised€that€this€discussion€should€notÏrefer€to€thermoplastic€product€process€units€(TPPUs)€andÏpetroleum€refinery€process€units€(PRPUs)€because€subpartsU€andÏJJJ€do€not€regulate€transfer€operations.Ìà  àòòResponseóó:€€Because€of€the€changes€in€the€applicabilityÐ T$¤6 Ðprovisions,€the€assignment€procedures€have€been€deleted.€ÏTherefore,€the€suggestions€made€by€the€commenters€no€longer€needÏto€be€addressed.€€ÌÔ  Ô2.3.2€òòPointer€Paragraphs€in€Referencing€SubpartsÔ ÝÔÐ )T$> Ðóóà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€thatÐ 0*€%@ ÐÔ_ÔÔ‡*XlÿXXLXlÿÔððÔ#†LXlÿXX*Xlÿ­#Ôñýñððñýññýñððñýñ60.110a(e)Ô_Ô€and€60.110b(g)€should€not€state€that€Ô_Ôñýñððñýññýñððñýñ60.16Ô_Ô€ofÐ \+¬&B ÐsubpartA€still€applies.€€The€commenter€pointed€out€that€Ô_Ôñýñððñýññýñððñýñ60.16Ô_ÔÐ ˆ,Ø'D Ðof€subpartA€is€a€list€of€prioritized€major€source€categories€andÏis€not€necessary€for€sources€complying€with€the€CAR.Ìà  àòòResponseóó:€€We€have€left€the€reference€to€Ô_Ôñýñððñýññýñððñýñ60.16Ô_Ô€of€40CFRÐ X Ðpart60,€subpartA,€in€the€list€of€provisions€that€still€apply€toÏsources€complying€with€the€CAR.€€Although€it€is€just€the€list€ofÏsource€categories,€we€consider€it€important€to€provide€a€completeÏlist€of€applicability€provisions€that€have€not€been€incorporatedÏinto€the€CAR,€but€that€still€apply€to€sources€complying€with€theÏCAR.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€advised€that€table4€inÐ <Œ  Ð40CFRpart63,€subpartH€is€duplicative€to€table1A€being€addedÏto€40CFR€part63,€subpartG.€€The€commenter€also€noted€thatÏtable1A€of€subpartG€is€missing€a€reference€to€63.5(f)(1)€thatÏis€in€table4€of€subpartH.Ìà  àòòResponseóó:€€Table€1A€and€table4€both€list€the€40CFR€part63Ð h Ðgeneral€provisions€(subpartA)€requirements€that€apply€to€ownersÏor€operators€choosing€to€comply€with€the€CAR.€€Both€tables€areÏnecessary,€one€for€subpartG€of€the€HON€(which€applies€to€processÏvents,€storage€vessels,€and€transfer€operations)€and€one€forÏsubpartH€of€the€HON€(which€applies€to€equipment€leaks).€€We€haveÏadded€the€missing€reference€to€Ô_Ôñýñððñýññýñððñýñ63.5(f)(1)Ô_Ô€to€table1A€ofÏsubpartG.€€Also,€there€are€some€additional€general€provisionsÏthat€apply€to€sources€referenced€to€the€CAR€from€40€CFR€part63,ÏsubpartG€that€were€inadvertently€left€off€of€table1A€ofÏsubpartG€in€the€proposed€rule.€€These€were€identified€in€table1Ïof€subpartA€of€part65€but€were€not€included€in€the€subpartGÏtable.€€These€provisions€have€been€added€in€the€final€CAR.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€indicated€that€theÐ T$¤6 Ðproposed€Ô_Ôððñýñððñýññýñððñýñ60.110a(c)Ô_Ô€and€60.110b(e)€pointer€paragraph€wordingÏsuggests€that€all€subject€storage€vessels€in€all€SCU's€at€a€siteÏmust€opt€into€the€CAR€together,€rather€than€all€subject€storageÏvessels€within€an€individual€SCU€opting€in€together.€€TheÏcommenter€(VI-D-03)€suggested€the€following€language€as€a€change:€Ï"...for€€storage€vessels€that...and€that€is€part€of€òòan€individualóóÐ \+¬&B ÐSCU."Ð ˆ,Ø'D Ðà  àThe€commenter€noted€that€Ô_Ôððñýñððñýññýñððñýñ60.110a(f)Ô_Ô€and€60.110b(h)€makeÏclear€that€all€subject€storage€vessels€within€an€SCU€must€optÏinto€the€CAR€together,€so€leaving€the€word€"all"€out€of€theseÏparagraphs€does€not€change€the€requirement,€but€does€clarify€thatÏall€subpartKa€and€Kb€storage€vessels€in€all€SCU's€at€a€site€needÏnot€opt€into€the€CAR€at€once.Ìà  àòòResponseóó:€€Because€of€the€changes€in€applicability,€theÐ ¸   Ðpointer€paragraphs€in€subpartsKa€and€Kb€have€been€revised€to€notÏinclude€the€reference€to€SCU.€€We€believe€that€thisÏsimplification€has€taken€care€of€the€clarification€suggested€byÏthe€commenter.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€noted€that€for€subpartDDDÐ ”ä  Ðprocess€vents€opting€into€the€CAR,€the€proposed€language€atÏÔ_Ôñýñððñýññýñððñýñ60.560(m)Ô_Ô€requires€the€vents€to€comply€with€the€CAR€subpartD.€ÏThe€commenter€pointed€out€that€the€total€resource€effectivenessÏ(TRE)€approach€in€the€CAR€subpartD,€however,€is€not€the€approachÏused€under€subpartDDD€to€define€covered€vents.€€Therefore,€theÏcommenter€concluded€only€subpartG€of€the€CAR€is€appropriate€forÏsubpartDDD€process€vent€provisions.€€The€commenter€(VI-D-03)Ïproposed€changes€to€the€language€of€Ô_Ôñýñððñýññýñððñýñ60.560(m)Ô_Ô€to€address€thisÏproblem.€€The€commenter€(VI-D-03)€also€suggested€thatÏclarification€may€be€needed€in€all€referencing€subparts€thatÏsubpartDDD€vents€are€not€subject€to€the€CAR€subpartD.Ìà  àòòResponseóó:€€For€owners€and€operators€choosing€to€comply€withÐ ¤ô. Ðthe€CAR,€Ô_Ôðð60.560(j)Ô_Ô€requires€subpartDDD€process€vents€to€complyÏwith€subpartG€of€the€CAR€(not€subpartD€of€the€CAR).€€TheÏproposed€Ô_Ôðð60.560(m)Ô_Ô€requires€other€process€vents€subject€to€otherÏreferencing€subparts€(40CFR€part60,€subpartsIII,€NNN,€RRR,€andÏthe€HON)€to€also€comply€with€the€CAR€if€the€process€vents€areÏlocated€in€the€same€SCU.€€However,€because€of€the€changes€toÏapplicability€in€the€final€CAR,€Ô_Ôðð60.560(m)Ô_Ô€has€been€deleted.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€requested€that€the€ongoingÐ )T$> Ðrecordkeeping€requirements€of€Ô_Ôðð60.116Ô_Ô€be€duplicated€in€the€CARÏsubpartC,€so€the€owner/operator€of€a€storage€vessel€complyingÏwith€the€CAR€need€not€refer€back€to€part60,€subpartKb.€Ð ˆ,Ø'D Ðà  àòòResponseóó:€€We€have€not€included€the€recordkeepingÐ ° Ðrequirements€of€Ô_Ôðð60.116bÔ_Ô€in€the€final€CAR.€€This€record€isÏrequired€in€both€subpartKa€and€Kb€of€part60.€€It€is€anÏapplicability€record€of€the€material€stored€and€its€vaporÏpressure.€€Because€this€record€is€required€in€only€two€of€theÏrules€consolidated,€and€it€is€an€applicability€record,€we€decidedÏnot€to€include€it€in€the€CAR.€€In€general,€all€applicabilityÏrequirements€remain€in€the€referencing€subparts.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommends€changes€to€theÐ `  Ðproposed€text€of€40CFRpart60,€subpartsIII,€NNN,€and€RRR€toÏclarify€specifically€which€affected€facilities€may€elect€toÏcomply€with€the€CAR.€€The€commenter€(IV-G-01)€asserts€that€theÏproposed€text€does€not€clearly€indicate€which€affected€facilitiesÏmay€choose€to€comply€with€the€CAR,€but€rather€implies€by€sequenceÏof€the€wording€that€only€specific€exempt€facilities€may€choose€toÏcomply€with€the€CAR.€€Using€subpartIII€at€Ô_Ôðð60.610(d)Ô_Ô€as€anÏexample,€the€commenter€(IV-G-01)€stated€that,€as€it€was€written,Ïonly€sources€subject€to€paragraph(c)€could€use€the€CAR:€€"OwnersÏor€operators€of€process€vents€that€are€subject€to€this€subpartÏmay€choose€to€comply€with€the€provisions€of€40€CFR€part65,ÏsubpartD€to€satisfy€the€requirements€of€paragraph(c)€of€thisÏsection€and€Ô_Ôðððð60.612Ô_Ô€through€60.615€of€this€subpart,€exceptÏÔ_Ôðð60.615(a),Ô_Ô€as€provided€in€paragraphs(d)(1),€(d)(2)€and€(e)€ofÏthis€section."€€The€commenter€(IV-G-01)€proposed€language€forÏclarification,€with€an€example€from€subpartIII€as€follows:€Ï"...Owners€and€operators€of€process€vents€that€are€subject€to€Ï60.610(a),€(b)€and€(c)€€may€choose€to€comply€with€the€provisionsÏof€40€CFR€Part65,€subpartD€to€satisfy€the€requirements€ofÏ60.612€through€60.615€of€this€subpart,€except€60.615(a),€asÏprovided...".Ìà  àòòResponseóó:€€We€have€clarified€which€facilities€subject€toÐ Ø'(#< ÐsubpartsIII,€NNN,€or€RRR€may€choose€to€comply€with€the€CAR,€butÏhave€used€different€wording€than€what€was€suggested.€€The€CARÏcontains€the€exemptions€from€control€for€process€vents€with€lowÏflow,€low€concentrations,€and€TRE€values€greater€than4.0.€Ð ˆ,Ø'D ÐTherefore€it€is€appropriate€to€state€that€the€CAR€satisfies€theÏrequirements€for€process€vents€exempt€from€control.€€The€text€ofÏsubpartsIII,€NNN,€and€RRR€has€been€modified€to€clarify€this.€ÏFor€example,€the€following€text€from€subpartIII€at€Ô_Ôðð60.610(d)Ô_ÔÏwas€modified:€€"Owners€or€operators€of€process€vents€that€areÏsubject€to€this€subpart€may€choose€to€comply€with€the€provisionsÏof€40CFRpart65,€subpartD€to€satisfy€the€requirements€ofÏÔ_Ôðððð60.612Ô_Ô€through€60.615€of€this€subpart,€except€Ô_Ôðð60.615(a),Ô_Ô€asÏprovided€in€paragraphs(d)(1),€(d)(2)€and€(e)€of€this€section.€ÏThe€provisions€of€40CFRpart65€also€satisfy€the€requirements€ofÏparagraph(c)€of€this€section.€€Other€provisions..."ÌÔ  ÔÌÔ& X Ô2.4à  àSTRUCTURE€AND€FORMATÔ 4(ÔÐ À Ðà  àÔ'XÀB(ÔòòCommentóó:€€One€commenter€(IV-G-01)€asserts€that€the€CAR€doesÐ ì< Ðnot€provide€a€single€set€of€provisions€by€which€sources€may€meetÏall€regulatory€requirements,€because€process€units€will€have€toÏcomply€with€the€CAR€and€with€certain€paragraphs€of€theÏreferencing€subparts.€€Two€commenters€(IV-G-01,€VI-D-01)€claimedÏthat€the€CAR€does€not€completely€simplify€the€set€of€regulationsÏbeing€consolidated€and€thereby€may€cause€more€instances€ofÏconfusion€and€noncompliance.€€As€an€example,€the€commenterÏ(IV-G-01)€pointed€out€that€each€of€the€referencing€subpartsÏrequire€the€owner€or€operator€to€follow€the€general€provisions€ofÏsubpartA€of€the€CAR€and€some€specific€general€provisionÏrequirements€from€40CFRparts60,€61,€or€63.€€Ìà  àAnother€commenter€(VI-D-01)€noted€that€the€attempt€toÏprovide€a€modular,€stand„alone€applicability€section€for€the€CARÏhas€resulted€in€a€very€complex€structure€and€still€requires€theÏimplementing€agencies€and€affected€sources€to€rely€upon€theÏindividual€rules€that€are€consolidated€in€the€CAR.€€Ìà  àOne€commenter€(IV-G-01)€claimed€that€the€CAR€will€have€noÏbenefit€to€sources€that€have€any€group2€or€non„regulated€ventÏstreams,€or€are€subject€to€any€State€requirements.€€The€commenterÏ(IV-G-01)€reasoned€that€most€sources€eligible€to€use€the€CAR€willÏhave€streams€subject€to€rules,€or€portions€of€rules,€that€are€notÐ ˆ,Ø'D Ðbeing€consolidated.€€The€commenter€(IV-G-01)€maintained€that€theÏCAR€will€be€beneficial€only€to€sources€that€have€only€group1€orÏregulated€process€vents,€storage€tanks,€transfer€operations,Ïand/or€equipment€subject€to€federal€leak€standards.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€there€areÐ ` ° Ðapplicable€provisions€in€the€referencing€subparts€and€referencingÏgeneral€provisions€that€require€familiarity€and€awareness€on€theÏpart€of€sources€complying€with€the€CAR.€€However,€theseÏprovisions€pertain€to€applicability€and€are€used€to€determineÏwhether€the€rule€applies€to€the€source€or€equipment€and€whetherÏcontrol€is€required.€€We€maintain€that€once€an€owner€or€operatorÏof€a€facility€complying€with€the€CAR€determines€the€applicabilityÏof€control,€then€the€owner€or€operator€will€rarely€have€to€referÏto€the€referencing€subparts€and€referencing€general€provisions.€ÏA€change€affecting€applicability€will€require€referring€to€theÏreferencing€subpart.Ìà  àWe€disagree€with€the€commenter's€assertion€that€the€CAR€willÏnot€benefit€facilities€that€have€group1€and€group2€storageÏvessels€and€transfer€racks.€€Group€1€storage€vessels€and€transferÏracks€are€emission€points€which€must€be€controlled.€€Group2Ïincludes€emission€points€where€control€is€not€required.€€InÏgeneral,€requirements€for€group€2€emission€points€include€recordsÏand€reports€that€confirm€the€group€status€of€the€emission€points.ÏOnce€the€group€2€reports€are€submitted,€there€are€few€additionalÏrequirements€in€the€referencing€subparts€with€which€a€facilityÏmust€comply,€and€the€CAR€requirements€are€not€relevant€to€group2Ïstorage€vessel€and€transfer€rack€emission€points.€€We€believeÏsignificant€benefits€can€accrue€to€sources€subject€to€multipleÏreferencing€subparts€with€group€1€points.€€Ìà  àòòCommentóó:€€Two€commenters€(IV-G-01,€VI-D-03)€recommended€thatÐ ¬&ü!: Ðwe€incorporate€tables€listing€the€provisions€of€the€referencingÏsubparts€that€are€still€applicable€when€using€the€CAR,€in€orderÏto€reduce€the€amount€of€regulatory€information€that€stakeholdersÏmust€review€to€determine€applicable€requirements.€€One€commenterÏ(IV-G-01)€asserted€that€such€a€table€would€not€only€clarify€theÐ ˆ,Ø'D Ðmore€subtle€requirements€of€the€CAR,€but€would€also€highlight€theÏremaining€requirements€from€the€referencing€subparts€thatÏotherwise€would€be€easy€to€overlook.€€Another€commenter€(VI-G-03)Ïsuggested€adding€a€"road€map"€table€which€gives€a€section„¼by-section€comparison€of€the€existing€requirements€in€theÏreferencing€subparts€and€the€alternative€CAR€provisions.Ìà  àòòResponseóó:€€As€suggested€by€the€commenters,€we€haveÐ ¸   Ðincorporated€a€table€that€lists€the€provisions€of€the€referencingÏsubparts€that€still€apply€to€sources€complying€with€the€CAR€as€anÏaid€to€the€user.€€We€have€also€developed€tables€that€give€aÏparagraph„by„paragraph€comparison€of€each€referencing€subpart€andÏits€corresponding€CAR€paragraph€in€the€proposed€rule.€€These€areÏreferred€to€as€"correlation€tables"€and€can€be€found€on€the€EPAÏTechnology€Transfer€Internet€siteÏ(www.epa.gov/ttn/uatw/car/car_rdpg.html).€Ìà  àòòCommentóó:€€Another€commenter€suggested€that€the€CAR€should€beÐ D” Ðrevised€as€a€"stand€alone"€part€so€that€sources€subject€to€theÏreferencing€subparts€could€simply€opt€to€comply€with€the€CAR,Ïthereby€eliminating€the€need€for€cross-referencing€theÏreferencing€subparts.€€Ìà  àòòResponseóó:€€We€have€made€every€effort€to€make€the€CAR€a€standÐ  p( Ðalone€part€that€sources€can€be€referred€to€with€very€littleÏlooking€back€at€the€original€referencing€subpart.€€It€has€beenÏnecessary€to€maintain€the€provisions€in€the€referencing€subpartsÏpertaining€to€applicability,€however.€€Significant€complexityÏwould€have€been€added€to€the€CAR€if€incorporation€of€theÏreferencing€subpart€applicability€had€been€attempted.€€Also,Ïthere€are€a€few€recordkeeping€or€reporting€provisions€of€someÏreferencing€subparts€that€needed€to€remain€applicable.€€These€areÏcases€where€we€have€determined€that€the€provisions€are€necessaryÏfor€implementing€and€enforcing€the€referencing€subpart.Ìà  àBy€adding€the€tables€of€referencing€subpart€provisions€thatÏstill€apply€to€sources€complying€with€the€CAR,€we€contend€that€Ïconfusion€has€been€eliminated€and€the€final€CAR€and€referencingÏsubparts€are€clear€and€easily€implemented.Ð ˆ,Ø'D Ðà  àòòCommentóó:€€One€commenter€(VI-D-03)€expressed€appreciation€forÐ ° Ðthe€CAR's€new€formatting€features.€€The€commenter€stated€that€theÏsignificant€reorganization€of€regulatory€requirements€by€end„userÏneed,€by€implementation€step,€by€specific€regulatory€topic,€andÏby€applicability€is€a€key€component€to€making€the€regulation€lessÏconfusing.€€The€commenter€stated€that€the€frequent€use€of€labelsÏto€facilitate€quick€recognition€of€the€organizational€structureÏprovides€clarity.€€The€commenter€(VI-D-03)€indicated€that€the€useÏof€direct€language€and€translation€of€appropriate€regulatoryÏrequirements€in€step„wise€procedures€will€help€reduce€theÏlearning€time€and€disputes€regarding€desired€regulatoryÏobjectives.Ìà  àòòResponseóó:€€We€appreciate€the€commenters€support€for€theÐ À Ðformatting€features€found€in€the€CAR.ÌÐ  h ÐØØÓ€ÓÑ€=ÑÌÌÌÌÌÌà@0 0 ìàÔ  Ô3.0€€SPECIFIC€COMMENTS€BY€SUBPARTÔ aCÔˆÌÌÌÓ€ÓÔ  Ô3.1à  àGENERAL€PROVISIONSÔ ¶CÔÐ ¸   Ðà  àòòCommentóó:€€One€commenter€(VI-D-02)€noted€that€Ô_Ôðð65.1(f)Ô_ÔÐ ä 4  Ðrequires€an€implementation€schedule€for€sources€opting€to€use€theÏCAR.€€The€commenter€stated€that€it€is€not€clear€whether€thisÏschedule€must€be€approved.€€The€commenter€(VI-D-02)€argues€thatÏthe€schedule€should€not€be€subject€to€review€and€approval,Ïbecause€the€CAR€is€voluntary€and€at€least€as€stringent€as€theÏreferencing€subparts.€€The€commenter€(VI-D-02)€requests€that€weÏclarify,€through€rewording€of€the€regulatory€text€and€theÏpreamble,€that€the€implementation€plan€is€submitted€for€planningÏpurposes€only€and€that€review€and€approval€by€the€permittingÏauthority€are€not€required.Ìà  àòòResponseóó:€€The€implementation€date€is€to€be€established€inÐ È! Ðcoordination€with€the€Administrator€or€delegated€authority.€€WeÏconsider€this€step€to€be€important€so€that€the€regulator€can€beÏaware€of€the€process€being€used€to€convert€the€facility€fromÏcomplying€with€the€referencing€subparts€to€complying€with€theÏCAR.€€It€provides€an€opportunity€to€the€regulator€to€ensure€thatÏthere€will€be€no€compliance€gaps,€and€the€benefits€of€CARÏimplementation€for€the€regulator€can€be€balanced€with€theÏbenefits€to€the€source€of€using€the€CAR.€€The€regulator€also€hasÏworkload€and€resource€constraints€to€consider€and€may€prefer€toÏmodify€permits€at€a€more€opportune€time€than€envisioned€by€theÏsource.€€In€addition,€the€regulator€must€have€some€comfort€levelÏwith€respect€to€implementation€and€enforcement€and€the€emissionÏsources€the€facility€wants€to€opt€in.€€We€have€clarified€in€theÏfinal€CAR€that€the€implementation€date€must€be€established€byÏâ âmutual€agreement€between€the€facility€and€regulator.Ð \+¬&? ÐÔ& X Ôâ âÔ  Ô3.1.1€€òòDefinitionsÔ KÔóóÐ ° Ðà  àÔ'X°øJÔòòCommentóó:€€One€commenter€(IV-G-01)€indicated€that€manyÐ Ü, Ðdefinitions€in€the€underlying€subparts€were€not€included€in€theÏCAR€and€that€this€forces€the€user€to€rely€on€the€definitionÏsections€in€the€referencing€subparts,€which€is€not€explicitlyÏallowed€in€the€CAR.€€The€commenter€(IV-G-01)€recommends€that€theÏCAR€clearly€state€that€definitions€in€the€referencing€subpartsÏshould€be€used€for€terms€that€are€used€in€the€CAR€and€that€areÏnot€defined€in€the€Act€or€in€subpartA€of€the€CAR.Ìà  àòòResponseóó:€€We€have€clarified€in€the€CAR€that€the€definitionsÐ <Œ  Ðin€the€referencing€subparts€should€be€used€for€terms€used€in€theÏCAR€and€not€defined€in€either€the€Act€or€subpartA€of€the€CAR.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€that€Ô_Ôðð65.2Ô_Ô€ofÐ À Ðthe€CAR€needs€to€define€the€term€"excess€emissions."€€TheÏcommenter€(IV-G-01)€pointed€out€that€"excess€emissions"€isÏexplained€in€Ô_Ôðð65.3(a)(4)Ô_Ô€of€the€CAR€but€is€not€defined€in€Ô_Ôðð65.2.Ô_Ô€ÏThe€commenter€(IV-G-01)€requested€that€Ô_Ôðð65.2Ô_Ô€should€be€consistentÏwith€Ô_Ôðð65.3(a)(4),Ô_Ô€if€this€section€actually€contains€theÏdefinition€of€excess€emissions.Ìà  àòòResponseóó:€€The€term€"excess€emissions"€is€defined€forÐ ôD& Ðpurposes€of€the€CAR€where€it€is€first€used,€in€Ô_Ôðð65.3(a)(4).Ô_Ô€€TheÏterm€is€used€in€the€following€locations€in€the€CAR:ÌÝ‚)ÿÝÝ  ÝÓ€ÓÝ‚)«QÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.6(b)(1)(i),Ô_Ô݃)«QØQÝŒÐxÈ,` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚)RÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.6(b)(4)(iv),Ô_Ô݃)RªRÝŒÐ@-` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚)bSÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.6(c),Ô_Ô݃)bS}S݌РX.` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚).TÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.162(a)(2)(iv),Ô_Ô€and݃).TITÝŒÐÐ /` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚)UÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.163(c).Ô_Ô݃)U"U݌И!è0` (#` (# ÐŒÝ  ÝÓ€ÓÌÓ€€ÓWe€have€edited€each€of€these€sections€to€include€a€reference€toÏÔ_Ôðð65.3(a)(4),Ô_Ô€where€the€term€"excess€emissions"€is€defined.€€AÏdefinition€has€not€been€added€for€"excess€emissions"€in€Ô_Ôðð65.2Ô_ÔÏbecause€the€term€has€different€connotations€throughout€theÏparts60,€61,€and€63regulations.€€Since€the€CAR€affects€rules€inÏall€three€parts,€we€have€decided€not€to€put€a€definition€in€theÏdefinition€section€to€avoid€confusion.€€Instead€the€term€will€beÏclarified€when€it€is€used€in€the€CAR€by€cross€references€toÏÔ_Ôñýñððñýññýñððñýñ65.3(a)(4).Ô_ÔÐ $,t'B Ðà  àòòCommentóó:€€One€commenter€(VI-D-06)€requested€clarification€ofÐ ° Ðterms€that€contain€subjective€adjectives€either€in€theÏdefinitions€section€or€in€the€sections€where€the€terms€occur.€ÏTwo€commenters€(VI-D-01,€VI-D-06)€specifically€mentioned€theÏdefinitions€of€"excused€excursion"€and€"reasonable€intervals."€ÏAnother€commenter€(VI-G-03)€pointed€out€that€"excused€excursion"Ïis€not€defined.€Ìà  àòòResponseóó:€€It€is€inevitable€that€some€terms€will€be€used€inÐ ä 4 Ða€regulation€that€are€not€immediately€obvious€to€everyone.€€ForÏtechnical€terms€and€terms€where€confusion€is€possible,€we€provideÏdefinitions.€€For€many€other€terms,€we€rely€on€the€meaning€givenÏthe€terms€in€common€language.€€The€term€"reasonable€intervals"€isÏused€one€time€in€the€CAR€at€Ô_Ôñýñððñýññýñððñýñ65.3(d)(3).Ô_Ô€€The€language€used€inÏthis€paragraph€is€consistent€with€the€language€ofÏÔ_Ôñýñððñýññýñððñýñ65.100(k)(9)(iii).Ô_Ô€€We€consider€this€term€sufficiently€clear.€ÏThe€term€excused€excursions€has€been€clarified€in€the€sectionsÏwhere€it€is€used.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€theÐ œì" Ðdefinition€of€"repaired"€be€modified€to€require€monitoring€"asÏappropriate"€to€verify€repair€because€visual€leakers€may€notÏrequire€remonitoring.Ìà  àThe€commenter(IV-G„01)€also€concluded€that€the€phraseÏ"definition€of€repair"€found€in€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2)Ô_Ô€should€be€changedÏto€"definition€of€repaired€or€first€attempt€at€repair"€in€orderÏto€parallel€the€definition€of€"repaired"€in€Ô_Ôñýñððñýññýñððñýñ65.2Ô_Ô€of€subpartAÏand€because€monitoring€is€also€required€after€the€first€attemptÏat€repair.Ìà  àòòResponseóó:€€"Visual€leakers"€requirements€in€the€CARÐ T$¤6 Ðtypically€include€language€to€the€effect€of€"repaired€in€thisÏinstance€means€that€the€visual€indications€of€a€leak€have€beenÏeliminated."€€Therefore,€the€standard€definition€of€"repaired"€inÏÔ_Ôñýñððñýññýñððñýñ65.2Ô_Ô€would€not€apply,€and€adding€the€phrase€"as€appropriate"€toÏthe€definition€of€"repaired"€is€confusing€and€is€not€necessary.€ÏWe€maintain€that€it€is€not€appropriate€to€add€the€suggestedÏlanguage€to€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2).Ô_ÔÐ ˆ,Ø'D Ðà  àAlso,€in€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2),Ô_Ô€the€CAR€requires€follow„upÏmonitoring€after€a€leaking€valve€has€been€repaired.€€TheÏrequirement€is€equally€applicable€whether€"repair"€was€successfulÏon€the€first,€second,€third,€or€any€subsequent€attempt€at€repair.€ÏIf€the€required€"first€attempt€at€repair"€is€successful€(andÏproven€through€monitoring€to€be€"repaired"),€then€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2)Ô_ÔÏrequires€a€follow„up€monitoring€within€3months.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€the€opinion€thatÐ ä 4 Ðthe€term€"high€throughput€transfer€rack"€should€be€defined€in€theÏCAR€subpartA€in€Ô_Ôñýñððñýññýñððñýñ65.2.Ô_Ô€€The€commenter€also€noted€thatÏÔ_Ôñýñððñýññýñððñýñ65.145(b)(1)(iii)Ô_Ô€has€a€reference€to€a€"non€low„throughputÏtransfer€rack"€and€recommended€that€the€term€"high€throughputÏtransfer€rack"€be€used€for€consistency.Ìà  àòòResponseóó:€€We€agree€that€using€the€term€"high€throughputÐ ì< Ðtransfer€rack"€would€be€beneficial.€€We€have€edited€the€CAR€toÏincorporate€the€term€where€appropriate€and€have€added€aÏdefinition€for€high€throughput€transfer€rack.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€reasoned€that€theÐ œì" Ðdefinition€of€"relief€device€or€valve"€found€in€the€CARÏsubpartA,€Ô_Ôñýñððñýññýñððñýñ65.2Ô_Ô€should€be€revised€to€include€relief€valves€thatÏallow€passage€of€nitrogen€to€prevent€vacuums.€€The€commenterÏsuggested€that€without€such€a€change,€the€CAR€definition€ofÏ"relief€device€or€valve"€would€be€inconsistent€with€the€changeÏthat€is€proposed€to€the€HON€definition€of€"pressure€reliefÏvalves"€as€discussed€at€63FR57762.Ìà  àòòResponseóó:€€The€definition€in€the€CAR€for€"pressure€reliefÐ ü!L2 Ðdevice€or€valve"€specifically€notes€that€"devices€activated...€byÏa€vacuum€are€not€pressure€relief€devices."€€A€"relief€device€orÏvalve"€under€the€CAR€means€a€"device€or€valve€used€only€toÏrelease€an€unplanned,€nonroutine€discharge,"€not€necessarilyÏrelieving€pressure.€€Pressure€relief€devices€are€a€subset€ofÏrelief€devices.€€There€are€specific€equipment€leak€requirementsÏfor€pressure€relief€devices€in€subpartF€of€the€CAR,€but€the€CARÏâ âdoes€not€have€requirements€for€relief€devices€in€general.Ð \+¬&B Ðà  àThe€change€noted€by€the€commenter€(and€discussed€at€63FRÏâ â57762)€is€regarding€the€definition€of€"open„ended€valve€or€line."€ÏThis€term€is€defined€differently€in€the€referencing€subparts,€butÏthe€intent€is€the€same:€€relief€devices,€the€broader€category€ofÏdevices€needed€for€safety€purposes€or€equipment€protection,€areÏnot€considered€open„ended€valves.€€The€CAR€language€thereforeÏspecifically€exempts€"relief€valves"€in€the€definition€ofÏ"open-ended€valve€or€line"€instead€of€exempting€"pressure€reliefÏvalves,"€as€was€done€in€the€HON€and€40CFR€part61,€subpartV.€Ï(No€change€has€been€proposed€to€the€HON€definition€of€"pressureÏrelief€device€or€valve"€or€"open„ended€valve€or€line.")Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€the€termsÐ ”ä  Ð"alternative€test€method"€and€"equivalent€test€method"€found€inÏthe€CAR€subpartA,€Ô_Ôñýñððñýññýñððñýñ65.2Ô_Ô€should€be€combined€into€one€term€andÏused€consistently,€because€they€seem€to€mean€the€same€thing.Ì€à  àAnother€commenter€(VI-D-02)€asserted€that€there€is€no€reasonÐ D” Ðfor€the€CAR€to€require€a€Method301€demonstration€for€alternateÏtest€methods,€if€the€Administrator€has€approved€an€alternate€as€aÏgeneral€matter€and€thereby€determined€the€alternate€to€beÏgenerally€applicable.€€The€commenter€(VI-D-02)€recommendedÏdeleting€this€condition€from€the€definition€of€"alternative€testÏmethods."Ìà  àòòResponseóó:€The€definitions€and€requirements€for€alternativeÐ xÈ, Ðtest€methods€and€for€equivalent€methods€are€not€the€same.€€TheÏtwo€terms€are€used€in€different€circumstances.€€EquivalentÏmethods€are€demonstrated€to€show€ð ða€consistent€and€quantitativelyÏknown€relationshipðð€to€the€required€test€method€for€the€specificÏcondition€under€which€that€test€method€would€be€run.€€AnÏalternative€method€provides€results€adequate€for€theÏAdministratorððs€determination€of€compliance.€Ìà  àWe€have€provided€more€detail€on€the€types€of€changes€thatÏconstitute€alternatives€to€test€methods€by€adding€definitions€andÏexamples€for€minor,€intermediate,€and€major€changes.€€TheseÏdefinitions€have€obviated€the€need€for€the€proposed€definition€ofÏð ðalternative€test€method.ðð€€As€indicated€in€these€definitions,Ð ˆ,Ø'D Ðonly€major€and€intermediate€changes€to€test€methods€must€undergoÏa€Method€301€demonstration.€€Further,€in€those€limited€situationsÏwhere€we€determine€that€a€Method€301€demonstration€isÏrepresentative€of€an€entire€source€category,€we€may€approve€aÏmajor€alternative€for€application€Ô_Ôtoñ ñò òñ ñÔ_Ô€Ô_Ôñ ñó óñ ñtheÔ_Ô€entire€source€category,Ïsuch€that€only€the€initial€application€of€the€change€wouldÏundergo€a€Method€301€demonstration.€€€Ìà  àThere€is€a€need€to€maintain€the€requirement€to€performÏMethod€301€for€changes€to€test€methods€that€have€not€beenÏapproved€by€the€Administrator.€€By€specifying€that€Method€301€beÏused,€we€ensure€that€we€will€receive€the€necessary€data€toÏevaluate€an€alternative€to€a€test€method.€€Also,€companiesÏsubmitting€alternative€test€methods€for€approval€will€know€whatÏinformation€is€expected.Ìà  àòòCommentóó:€€Two€commenters€(VI-G-03,€VI-G-04)€commented€onÐ h Ðconfusion€in€the€definitions€for€recapture,€recovery,€and€controlÏdevices.€€One€commenter€(VI-G„03)€supported€the€comments€ofÏVI-G-04€on€this€issue.€€One€commenter€(VI-G„04)€contended€thatÏthe€goals€of€"regulatory€reinvention"€mandate€that€we€use€the€CARÏas€an€opportunity€to€eliminate€the€artificial€distinction€betweenÏrecapture,€recovery,€and€control€devices€and€articulate€a€simple,Ïstraightforward€principle€applicable€to€any€device€that€controlsÏemissions.€€The€commenter€(VI„G„04)€stated€that,€as€proposed,€theÏCAR€definitions€are€overly€complex€and€penalize€the€use€ofÏ"recovery€devices"€to€achieve€emission€control.€€The€commenterÏ(VI-G-04)€further€stated€that€this€approach€not€only€results€inÏconfusion€in€permitting,€compliance,€and€enforcement€of€the€CAR,Ïbut€also€creates€a€regulatory€disincentive€for€the€recycling€ofÏrecovered€chemical€materials.€€The€commenter€(VI-G-04)€added€thatÏthese€results€are€contrary€to€the€goals€of€the€White€House€paperÏ"Reinventing€Environmental€Regulation"€which€emphasizes€deletingÏ"conflicting",€"overlapping",€"duplicative",€and€"confusing"Ïrequirements€in€favor€of€regulations€that€are€"understandable€toÏâ âthose€who€are€affected€by€them."Ð \+¬&B Ðà  àThe€commenter€(VI-G-04)€referenced€the€definitions€forÏâ â"control,€recovery,€and€recapture€devices"€as€confusing€andÏspecifically€called€attention€to€the€exclusion€of€recoveryÏdevices€as€control€devices€(in€the€control€device€definition)€andÏthe€exception€to€this€exclusion€in€Ô_Ôñýñððñýññýñððñýñ65.63(a)(2)(ii).Ô_Ô€€TheÏcommenter€(VI„G„04)€stated€that€this€exception€was€confusing,Ïdifficult€to€apply,€and€unjustified€from€an€environmentalÏstandpoint.€€The€commenter€(VI-G-04)€elaborated€on€why€theÏconditions€of€the€exception€are€unjustified€from€an€environmentalÏstandpoint.€€The€commenter€(VI-G-04)€also€contended€that€theÏproposed€CAR€creates€a€recycling€penalty€and€encourages€the€useÏof€recapture€devices€where€a€waste€is€formed.€€The€commenterÏ(VI-G„04)€stated€that€this€is€a€practice€that€should€beÏdiscouraged.€€The€commenter€(VI-G-04)€stated€that€if€we€areÏconcerned€that€a€recovery€device€may€actually€be€a€part€of€theÏprocess,€that€this€concern€should€be€addressed€by€a€simple,Ïstraightforward€statement€in€the€rule€(i.e.,€that€a€recoveryÏdevice€may€not€be€relied€upon€as€a€control€device€if€it€isÏnecessary€to€the€operation€of€the€emission€source).€€TheÏcommenters€(VI-G-03,€VI-G-04)€suggested€that€recapture€andÏrecovery€devices€should€be€considered€control€devices€to€theÏextent€that€they€are€relied€upon€by€the€owner€or€operator€toÏreduce€emissions.€€The€commenter€(VI-G-04)€stated€that€this€canÏbe€accomplished€by€shortening€the€definition€of€"control€device"Ïto€just€the€first€two€sentences€in€the€proposed€definition€andÏthe€exclusion€and€exceptions€in€Ô_Ôñýñððñýññýñððñýñ65.63(a)(2)Ô_Ô€should€be€deleted.Ìà  àòòResponseóó:€€The€recapture€device€concept€was€added€to€the€HONÐ (#x4 Ðin€recent€changes€to€that€rule.€€This€change€was€discussed€in€theÏHON€amendment€proposal€preamble€on€August€26,€1996€(61FR43704);Ïthe€change€was€promulgated€in€January17,€1997.€€In€the€proposalÏpreamble,€we€explain€that€this€change€fills€a€"regulatory€voidÏfor€non-combustion/non-recovery€devices€while€preserving€theÏapproach€used€in€this€rule€(and€earlier€rules)€to€differentiateÏbetween€process€and€control€in€this€industry."€€We€point€out€inÏthis€discussion,€the€NSPS€process€vent€provisions€(40CFR60,Ð ˆ,Ø'D ÐÔ_ÔsubpartsIII,€NNN,€and€RRR)€and€the€HON€provisions,€prior€to€thisÏchange,€treated€all€carbon€absorbers,€condensers,€adsorbers,€andÏscrubbers€as€"recovery€devices"€and€never€considered€theseÏdevices€to€be€used€in€situations€where€the€material€was€capturedÏand€disposed€of.€€Therefore,€the€recapture€provisions€were€addedÏto€the€HON€to€include€these€devices€as€a€compliance€option€inÏsituations€when€they€are€not€used€as€recovery€devices€(i.e.,€whenÏthey€are€used€as€recapture€devices).€€Ìà  àIn€the€final€CAR,€an€additional€change€was€made€to€provideÏclarity€and€reduce€the€complexity€of€these€provisions.€€The€CARÏhas€eliminated€the€term€"recapture€device"€and€now€relies€on€theÏterm€"control€device"€in€the€situation€where€this€term€has€beenÏused.€€Even€under€the€proposed€CAR€all€recapture€devices€wereÏcontrol€devices.€€We€have€used€this€fact€in€the€final€rule€toÏsimplify€the€language.€€Elements€of€the€recapture€deviceÏdefinition€have€been€incorporated€into€the€control€deviceÏdefinition.€€This€is€in€order€to€make€it€clear€that,€for€processÏvents,€control€devices€include€non„combustion/non„recoveryÏdevices€(devices€that€capture€material€that€is€not€used,€reused,Ïor€sold),€but€do€not€include€recovery€devices€(devices€thatÏrecover€material€that€is€used,€reused,€or€sold).Ìà  àThe€CAR€does€not€penalize€the€use€of€recovery€devices€as€theÏcommenter€suggests.€€This€change€has€not€changed€the€fact€thatÏrecovery€devices€are€allowed€to€be€used€to€comply€with€the€ruleÏby€raising€the€TRE€index€value.€€Under€the€NSPS,€HON,€and€CARÏprocess€vent€provisions,€equipment€is€considered€to€be€part€ofÏthe€process€if€the€recovered€materials€are€used,€reused,€or€soldÏfor€use€as€the€chemical€or€for€fuel.€€This€provision€is€stated€inÏthe€rule€by€specifying€that€all€applicability€determinations€takeÏplace€after€the€final€recovery€device.€€If€the€process€vent€meetsÏthe€criteria€for€TRE,€flow,€and€concentration€then€control€isÏrequired.€€In€the€process€vent€rules,€three€options€are€given€forÏcompliance:€€(1)a€flare€can€be€installed;€(2)a€control€deviceÏ(not€a€recovery€device)€meeting€98percent€emissions€reduction€orÏa€20ppmv€outlet€concentration€can€be€installed;€or€(3)aÐ ˆ,Ø'D Ðrecovery€device€can€be€installed€that€increases€the€TRE€toÏgreater€than€1.0€„„€this€option,€therefore€extends€the€processÏout€to€the€end€of€the€new€recovery€device.€€Although€the€ruleÏdoes€not€consider€a€recovery€device€to€be€a€control€device€forÏprocess€vents€(because€recovery€devices€are€part€of€the€process),Ïthis€third€option€encourages€the€use€of€recovery€devices€(orÏprocess€changes)€to€prevent€pollution.€€By€recovering€and€reusingÏchemicals,€emissions€can€be€reduced€such€that€the€TRE€isÏincreased€to€greater€than€1.0€and€a€control€device€does€not€needÏto€be€applied.€€The€recovery€device€does€not€need€to€meet€theÏ98percent€reduction€or€20ppmv€criteria,€it€only€needs€toÏincrease€the€TRE€to€greater€than1.0.€€(In€many€cases,€less€thanÏ98percent€reduction€can€increase€the€TRE€to€greater€than1.0.)€ÏBy€making€the€distinction€between€recovery€devices€and€non„¼combustion/non„recovery€devices€that€capture€material€not€used,Ïreused,€or€sold,€we€have€expanded€the€list€of€control€devicesÏthat€can€be€used€to€meet€option(2)(the€98percent€emissionsÏreduction€or€20ppmv€outlet€concentration)€to€include€non„¼combustion/non„recovery€devices€as€well€as€combustion€controlÏdevices.€Ìà  àRecovery€devices€are€part€of€the€process€and€are€thereforeÏnot€control€devices.€€Non„combustion/non„recovery€devices€thatÏcapture€material€that€is€not€used,€reused,€or€sold€are€not€partÏof€the€process€and€are€therefore€control€devices.€€TheÏdistinction€between€these€devices€is€necessary€to€maintain€theÏdistinction€between€process€and€control€equipment.€€TheÏdistinction€between€process€and€control€equipment€was€an€integralÏpart€of€the€data€analysis€used€to€support€the€process€vent€rules.€ÏWe€do€not€consider€this€an€arbitrary€distinction.Ìà  àIt€would€not€provide€adequate€guidance€to€simply€state€inÏthe€rule€that€a€recovery€device€can€not€be€relied€upon€as€aÏcontrol€device€if€it€is€necessary€to€the€operation€of€theÏemission€source,€as€suggested€by€the€commenter.€€There€would€beÏseveral€possible€interpretations€on€whether€a€recovery€device€isÏintegral€to€a€process,€for€instance:Ð ˆ,Ø'D ÐÓ€Óà0  àð"ðà0` (#(#àis€a€recovery€device€that€provides€an€increase€inÐ ° Ðproduction€efficiency€greater€than€10percent€integralÏto€a€process?€what€about€a€5percent€increase?;Ð ` (#` (# ÐÌà0  àð"ðà0` (#(#àis€a€recovery€device€that€decreases€the€use€of€rawÐ Ð  Ðmaterials€by€5percent€integral?€€what€about€aÏ2percent€decrease?€€Ð ` (#` (# ÐÓ€ÓÌÓ€€ÓThe€convention€that€the€last€recovery€device€is€considered€partÏof€a€process€has€been€used€since€40CFR60,subpartIII€wasÏproposed€in€October1983€and€in€three€other€rules€since.€€WeÏconsider€this€convention€fair,€understandable,€and€easilyÏapplied.€Ìà  àThe€exception€to€the€exclusion€of€recovery€devices€used€toÏmeet€the€98percent€control€requirement€specified€inÏñýñððñýññýñððñýñ65.63(a)(2)(ii)€was€added€to€the€HON€and€incorporated€into€theÏCAR€to€provide€for€a€specific€situation.€€Industry€brought€to€ourÏattention€the€situation€where€a€control€device€exists€after€theÏfinal€recovery€device€and€the€control€device€can€not€meet€theÏ98percent€control€requirement€and€can€not€meet€the€20ppmvÏoutlet€concentration€requirement€consistently.€€In€this€situationÏthe€facility€is€faced€with€the€decision€to€stop€reusing€theÏmaterial€recovered€in€the€recovery€device€or€add€an€additionalÏdevice.€€(By€no€longer€using€the€material€recovered€in€theÏrecovery€device,€the€recovery€device€can€be€considered€a€controlÏdevice€and€be€used€to€help€meet€the€98percent€controlÏrequirement.)€€Because€of€the€costs,€the€facility€would€be€moreÏlikely€to€stop€reusing€the€recovery€material,€thereby€creating€anÏadditional€solid€waste€stream€and€not€reducing€emissions€anyÏfurther.€€We€decided€to€avoid€the€creation€of€additional€solidÏwaste€streams,€especially€with€no€further€reduction€of€emissions,Ïand€to€allow€these€recovery€devices€to€be€considered€controlÏdevices.€€There€are€several€conditions€required€to€be€met€beforeÏthis€exception€can€be€used.€€These€conditions€are€necessary€toÏmake€sure€that€the€exception€is€only€available€for€these€specificÏsituations.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€requested€a€deletion€ofÐ \+¬&@ Ðthe€sentence€within€the€definition€of€"malfunction"€that€reads,Ð ˆ,Ø'B Ð"Failures€that€are€caused€in€part€by€poor€maintenance€or€carelessÏoperation€are€not€malfunctions."€€The€commenter€noted€that€theÏterms€"poor€maintenance"€and€"careless€operation"€are€notÏdefined.€€The€commenter€believes€the€standard€for€identifying€aÏmalfunction€is€already€articulated€in€the€definition€by€the€termsÏ"sudden,€infrequent€and€not€reasonably€preventable,"€and€theÏcommenter€therefore€maintains€that€the€terms€"poor€maintenance"Ïand€"careless€operation"€are€ambiguous,€unenforceable,Ïunnecessary,€and€likely€to€lead€to€litigation.ÌÔ& ¸ Ôà  àòòResponseóó:€€The€language€in€the€CAR€definition€ofÐ <Œ  Ð"malfunction"€regarding€"poor€maintenance€or€careless€operation"Ïis€identical€to€the€language€in€the€definition€sections€of€theÏ40CFR€part60€and€part63€general€provisions.€€This€languageÏexists€in€the€definition€to€add€clarity€to€the€"sudden,Ïinfrequent€and€not€reasonably€preventable"€language.€€ItÏspecifies€that€any€event€that€was€caused€in€part€by€poorÏmaintenance,€for€instance,€is€not€a€malfunction.€€We€contend€thisÏclarification€is€necessary€and€that€its€meaning€is€clear.€€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€suggested€Ô'¸ <:£Ôthat€theÐ È$ Ðdefinition€of€"permit€program"€should€include€State€permittingÏprograms€that€are€not€part€of€the€title€V€program€and€FederallyÏEnforceable€State€Operating€Permits€programs€for€minor€andÏsynthetic€minor€sources.Ìà  àòòResponseóó:€€In€the€context€of€the€CAR,€"permit€program"Ð ¤ô. Ðrefers€to€titleV€permits€established€pursuant€to€part70€or€71;Ïit€does€not€refer€to€other€types€of€permit€programs.€€ChangingÏthe€definition€as€the€commenter€has€suggested€would€only€addÏconfusion€where€this€term€is€used.€€Ìà  àòòCommentóó:€€A€commenter€(IV-G„01)€pointed€out€that€theÐ €%Ð 8 Ðdefinition€of€regulated€source€in€subpartA€of€the€CAR€does€notÏmatch€the€definition€in€the€proposal€preamble.Ìà  àòòResponseóó:€€There€is€no€definitions€section€in€the€proposalÐ )T$> Ðpreamble,€therefore,€we€assume€the€commenter€is€referring€to€theÏtext€in€sectionV.A,€Amendments€to€the€Referencing€Subparts:€ÏGeneral€Concepts€(63€FR57758).€€In€this€section,€"regulatedÐ ˆ,Ø'D Ðsource"€is€described.€€The€words€used€in€this€description€areÏdifferent€than€those€used€to€define€it.€€However,€the€meaning€isÏthe€same.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€indicated€that€"maximumÐ 4„ Ðtrue€vapor€pressure"€as€used€in€subpartC,€ñýñððñýññýñððñýñ65.41(b)€of€the€CARÏshould€be€defined.Ìà  àòòResponseóó:€€Maximum€true€vapor€pressure€is€a€term€necessaryÐ ¸   Ðfor€determining€the€applicability€of€control€for€storage€vesselÏrules.€€Therefore,€it€is€defined€with€the€applicabilityÏprovisions€in€the€referencing€subparts.€€The€definition€from€theÏapplicable€referencing€subpart€should€be€used€when€that€term€isÏencountered€in€the€CAR.Ìà  àòòCommentóó:€€One€commenter€(IV„G„01)€noted€that€the€termÐ À Ð"referencing€subpart"€does€not€include€HON€subpartF.Ìà  àòòResponseóó:€€The€commenter€is€correct.€€40€CFR€part63,Ð h ÐsubpartF€is€not€listed€as€a€referencing€subpart€in€theÏdefinition€of€referencing€subpart.€€SubpartF€is€not€aÏreferencing€subpart€because€there€is€no€reference€to€the€CAR€fromÏsubpartF.€€The€references€from€the€HON€to€the€CAR€are€in€40CFRÏpart63,€subpartG€for€storage€vessels,€process€vents,€andÏtransfer€racks,€and€in€40CFR€part63,€subpartH€for€equipmentÏleaks.Ìà  àòòCommentóó:€€Two€commenters€(IV-G-01,€VI„D„03)€pointed€outÐ xÈ, Ðthat,€in€subpartA€of€the€CAR,€the€definition€of€a€closed€loopÏsystem€contradicts€the€definition€of€a€closed€vent€system.€€OneÏcommenter€(IV-G-01)€stated€that€the€definition€of€a€closed€ventÏsystem€intentionally€excludes€piping€going€back€to€the€processÏfrom€the€scope€of€a€closed€vent€system.€€The€commenters€(IV-G-01Ïand€VI-D-03)€recommended€that€"except€through€a€closed€ventÏsystem"€be€removed€from€the€definition€of€a€closed€loop€system.Ì€à  àòòResponseóó:€€We€agree€with€the€commenter€that€there€isÐ Ø'(#< Ðpotential€for€confusion€regarding€the€definitions€of€a€closedÏvent€system€and€a€closed€loop€system.€€Therefore,€we€have€revisedÏâ âthe€definition€of€a€closed€loop€system€in€subpartA€of€the€CAR€toÐ \+¬&B Ðstate€that€a€"closed€loop€system€means€an€enclosed€system€thatÏreturns€process€fluid€to€a€process."Ìâ âà  àòòCommentóó:€€One€commenter€(VI-D-03)€asserts€that€the€firstÐ X Ðsentence€of€the€CAR€control€device€definition€implies€that€aÏcombustion€device€fueled€from€a€fuel€gas€system€is€a€controlÏdevice.€€The€proposed€definition€is€inconsistent€with€theÏtreatment€of€fuel€gas€systems€by€the€CAR.€€The€commenterÏsuggested€a€revision€of€the€control€device€definition€to€clarifyÏthat€combustion€devices€that€only€burn€fuel€as€a€primary€fuel€areÏexcluded€from€the€definition,€as€follows:€€"Control€device€meansÏany€combustion€device€òòcombusting€a€regulated€material€as€aÐ h¸  Ðsecondary€fuel,óó€recovery€device,€recapture€device,€or€anyÐ ”ä  Ðcombination€of€these€devices€used€to€comply€with€this€part...."€Ï(Suggested€language€is€underlined.)€€The€commenter€(VI-D-03)Ïasserted€that€this€change€would€allow€simplification€of€theÏboiler€and€process€heater€language€in€the€CAR€subpartG,€becauseÏthe€exceptions€for€primary€fuel€could€be€eliminated.€€ForÏexample,€the€commenter€said€ñýñððñýññýñððñýñ65.149(b)(2)(ii)€could€be€deletedÏand€paragraph(c)(1)€of€the€same€section€could€be€greatlyÏsimplified.Ìà  àòòResponseóó:€€The€commenter€is€correct€when€pointing€out€thatÐ  p( Ðthe€first€sentence€of€the€CAR€control€device€definition€does€seemÏto€imply€that€a€fuel€gas€system€could€be€considered€a€controlÏdevice.€€However,€the€fourth€sentence€clearly€states€"A€fuel€gasÏsystem€is€not€a€control€device."€€We€consider€this€clarificationÏto€be€sufficient€to€avoid€the€confusion€suggested€by€theÏcommenter.€€Also,€the€change€suggested€by€the€commenter€would€notÏbe€appropriate€in€situations€where€the€regulated€stream€is€theÏprimary€fuel,€such€as€in€the€case€of€some€flares.ÌÔ  Ô3.1.2€€òòStartup,€Shutdown,€and€MalfunctionÔ ĹÔóóÐ ¬&ü!: Ðà  àòòCommentóó:€€Three€commenters€(IV-G-01,€VI-D-02,€VI-D-03)Ð Ø'(#< Ðpointed€out€that€the€requirement€in€ñýñððñýññýñððñýñ65.6(c)(2)€of€the€CAR€isÏinconsistent€with€the€preamble€of€the€CAR€which€states€thatÏprovisions€in€the€part63€general€provisions€regarding€immediateÏreporting€of€periods€of€startup,€shutdown,€and€malfunction€haveÐ ˆ,Ø'D Ðnot€been€included€in€the€CAR.€€One€commenter€(IV-G-01)€advisedÏthat€the€startup,€shutdown,€and€malfunction€immediate€reportingÏrequirement€in€ñýñððñýññýñððñýñ65.6(c)(2)€of€the€CAR€should€be€removed€becauseÏit€is€inconsistent€with€the€provisions€from€subpartG€of€the€HON.€ÏThe€commenter€noted€that€the€HON€requires€sources€to€report€suchÏactions€in€the€periodic€report€instead€of€an€immediate€report.€Ìà  àòòResponseóó:€€We€intended€to€be€consistent€with€HONÐ ¸   Ðrequirements€and€therefore€did€not€intend€to€require€immediateÏreporting€of€periods€of€startup,€shutdown,€and€malfunction€underÏthe€CAR.€€This€inadvertent€error€has€been€corrected€by€removingÏthis€requirement€from€ñýñððñýññýñððñýñ65.6(c).€€As€noted€in€the€proposalÏpreamble,€requiring€these€reports€with€the€periodic€reportsÏinstead€of€as€immediate€reports€not€only€sufficiently€ensuresÏcompliance€but€also€provides€for€report€consolidation.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€we€removeÐ h Ðthe€criteria€under€ñýñððñýññýñððñýñ65.6(c)(1)(ii)€of€the€CAR,€which€require€thatÏthe€periodic€startup,€shutdown,€and€malfunction€reports€includeÏthe€number€of€startup,€shutdown,€and€malfunction€events€and€theÏtotal€duration€of€all€periods€of€startup,€shutdown,€andÏmalfunction€for€the€reporting€period.€€The€commenter€claimed€thatÏthis€section€only€requires€reporting€if€the€total€durationÏexceeds€either€of€the€durations€specified€in€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(A)Ïor€(c)(1)(ii)(B)€and€the€commenter€(IV-G-01)€objects€to€theÏcriteria€because€they€add€calculation€burdens€that€are€notÏrequired€by€the€referencing€subparts.Ìà  àThe€commenter€(IV-G-01)€suggested€that,€if€we€retain€theÏprovisions€in€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(A)€and€(c)(1)(ii)(B)€of€the€CAR,€weÏshould€clarify€specifically€what€startup,€shutdown,€andÏmalfunction€information€sources€must€include€in€their€periodicÏstartup,€shutdown,€and€malfunction€reports.€€The€commenterÏ(IV-G-01)€indicated€that€it€is€often€easier€to€report€allÏstartup,€shutdown,€and€malfunction€periods€that€caused€excessÏemissions€rather€than€determining€the€percentage€of€time€aÏâ âContinuous€Parameter€Monitoring€System€(CPMS)€is€not€operating€orÐ \+¬&B Ðis€malfunctioning,€or€the€percentage€of€time€in€which€startup,Ïshutdown,€and€malfunction€events€caused€excess€emissions.Ìâ âà  àRegarding€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(A),€the€commenter€(IV-G-01)Ïspecifically€requested€clarification€of€the€assumption€that€aÏseparate€downtime€percentage€should€be€calculated€for€eachÏindividual€CPMS€and€that€only€startup,€shutdown,€and€malfunctionÏevent€durations€need€to€be€reported€on€CPMS€for€which€the€periodÏof€inoperation€or€malfunction€is€equal€to€or€greater€thanÏ5percent.€€The€commenter€(IV-G-01)€also€requested€clarificationÏof€whether€to€include€or€exclude€periods€of€CPMS€inoperation€orÏmalfunction€when€the€actions€taken€by€an€owner€or€operator€areÏconsistent€with€the€procedures€specified€in€the€source's€startup,Ïshutdown,€and€malfunction€(SSM)€€plan.€€The€commenter€(IV-G-01)Ïalso€asked€that€we€clarify€which€periods€of€CPMS€inoperation€orÏmalfunction€should€be€included€in€the€startup,€shutdown,€andÏmalfunction€report€and€requested€that€only€the€periods€of€CPMSÏinoperation€or€malfunction€for€which€actions€are€inconsistentÏwith€the€SSM€plan€be€included.Ìà  àRegarding€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(B)€of€the€CAR,€the€commenterÏ(IV-G-01)€requested€that€we€clarify€how€to€calculate€theÏpercentage€of€startup,€shutdown,€and€malfunction€time€duringÏwhich€excess€emissions€occur€because€of€inconsistency€in€theÏdefinition€of€"regulated€source."€€The€commenter€(IV-G-01)Ïrequests€that€the€percentage€should€be€calculated€on€an€emissionÏpoint€by€emission€point€basis€considering€the€operating€time€ofÏeach€emission€point.€€The€commenter€(IV-G-01)€assumes€that€whenÏone€emission€point€exceeds€1percent€of€that€regulated€source'sÏoperating€time,€the€information€in€ñýñððñýññýñððñýñ65.6(c)(1)(ii)€of€the€CARÏneeds€to€be€reported€only€for€that€emission€point.€€The€commenterÏ(IV-G-01)€requested€clarification€regarding€which€periods€ofÏstartup,€shutdown,€and€malfunction€should€be€included€in€theÏpercentage€calculation.€€The€commenter€(IV-G-01)€requested€thatÏonly€the€periods€of€startup,€shutdown,€and€malfunction€for€whichÏâ âactions€are€inconsistent€with€the€SSM€plan€be€included€in€theÐ \+¬&B Ðpercentage€calculation€and€the€periodic€startup,€shutdown,€andÏmalfunction€report.Ìâ âà  àòòResponseóó:€€A€semi„annual€summary€report€of€the€occurrencesÐ X Ðand€durations€of€each€startup,€shutdown,€and€malfunction€duringÏwhich€excess€emissions€occur€is€required€by€the€CAR€generalÏprovisions.€€We€consider€the€semi„annual€summary€report€anÏimportant€addition€to€the€startup,€shutdown,€and€malfunctionÏprovisions,€because€it€would€highlight€when€startup,€shutdown,Ïand€malfunction€conditions€exist€for€a€significant€amount€ofÏtime,€and€it€would€indicate€conditions€that€happen€frequentlyÏduring€a€semi„annual€period.€€The€purpose€of€reporting€only€aboveÏcertain€thresholds€was€to€reduce€burden,€primarily€if€occurrencesÏare€rare€or€infrequent.Ìà  àNevertheless,€we€agree€with€the€commenter's€assertion€thatÏit€may€be€easier€to€report€all€startup,€shutdown,€and€malfunctionÏperiods€that€caused€excess€emissions,€rather€than€reporting€theÏpercentage€of€time€a€CPMS€is€malfunctioning€or€not€operating,€orÏthe€percentage€of€operating€time€in€which€regulated€sourceÏstartup,€shutdown,€and€malfunction€events€occurred€that€causedÏexcess€emissions.€€We€consider€the€determination€of€the€operatingÏtime€for€the€various€regulated€sources€to€be€burdensome€andÏdifficult€to€keep€track€of,€making€the€calculation€of€theÏpercentages€difficult.€€Therefore,€we€have€eliminated€theÏrequirement€to€calculate€the€percentage€of€time€an€SSM€eventÏoccurs€and€the€reporting€exemption€associated€with€it.€€TheÏfacilities€that€would€have€benefitted€from€this€exemption,€thoseÏwith€infrequent€SSM€events,€will€have€very€little€to€report€and,Ïtherefore,€will€only€see€a€small€increase€in€burden.€€The€finalÏrule€requires€the€owner€or€operator€to€report€all€startup,Ïshutdown,€and€malfunction€periods.€€Ìà  àWe€have€clarified€the€information€that€must€be€included€inÏthe€periodic€startup,€shutdown,€and€malfunction€report€asÏrequested€by€the€commenter.€€The€report€must€include€the€numberÏâ âof€discrete€startup,€shutdown,€and€malfunction€events€and€howÐ \+¬&B Ðlong€these€events€lasted€for€each€regulated€source€and€CPMSÏregardless€of€whether€the€SSM€plan€was€followed€or€not.€€Ìâ âà  àòòCommentóó:€€One€commenter€(IV-G„01)€noted€that€the€lastÐ X Ðsentence€of€the€reporting€discussion€in€the€proposal€preambleÏ(63FR€57767)€should€use€the€terms€"greater€than€or€equal€to"€inÏreference€to€total€duration€of€excess€emissions€and€CPMS€downtimeÏinstead€of€"less€than."Ìà  àòòResponseóó:€€The€commenter€is€correct€in€that€the€preambleÐ ä 4 Ðshould€have€read€"greater€than€or€equal€to"€in€the€sentenceÏreferenced€by€the€commenter.€€However,€the€paragraphs€that€thisÏproposed€preamble€text€refers€to€(ðð65.6(c)(1)(ii)(A)€andÏ(c)(1)(ii)(B))€have€been€deleted€in€the€final€CAR€for€the€reasonsÏmentioned€in€the€previous€response.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€that€it€is€notÐ ì< Ðaccurate€for€the€CAR€preamble€to€state€that€"[SSM]€plans€areÏconsidered€inadequate€under€the€HON€if€they€fail€to€provide€forÏthe€operation€of€the€regulated€source€during€startup,€shutdown,Ïand€malfunction€to€minimize€emissions€to€at€least€the€levelsÏrequired€by€all€relevant€standards."€€The€commenter€points€outÏthat€the€HON€was€revised€to€override€the€provision€inÏñýñððñýññýñððñýñ63.6(e)(1)(i)€of€40CFRpart63,€subpartA€and€addresses€theÏissue€in€ñýñððñýññýñððñýñ63.102(a)(4)€of€40CFRpart63,€subpartF.€€TheÏcommenter€(IV-G-01)€states€that€ñýñððñýññýñððñýñ63.102(a)(4)€provides€thatÏ"during€startups,€shutdowns,€and€malfunctions€when€theÏrequirements€of€this€subpart€[subpartF],€subparts€G€and/or€H€ofÏthis€part€do€not€apply...,€the€owner€or€operator€shall€implement,Ïto€the€extent€reasonably€available,€measures€to€prevent€orÏminimize€excess€emissions€to€the€extent€practical...."€€TheÏcommenter€(IV-G-01)€asserted€that€the€preamble€to€the€CAR€shouldÏimply€that€HON€sources€are€subject€to€a€different€standard.€€TheÏcommenter€(IV-G-01)€also€requested€that€future€rulemaking€shouldÏreflect€the€reality€that€we€recognize€that€it€is€"impracticable,Ïas€well€as€contradictory...to€expect€sources€to€continually€meetÏapplicable€emissions€standards€while€experiencing€a€startup,Ïshutdown,€or€malfunction."Ð ˆ,Ø'D Ðà  àòòResponseóó:€€We€acknowledge€that€the€CAR€preamble€had€anÐ ° Ðincorrect€reference€to€the€HON.€€The€reference€should€have€beenÏto€the€general€provisions€of€part63,€as€the€commenter€(IV-G-01)Ïpoints€out€by€referencing€the€general€provisions€ñýñððñýññýñððñýñ63.6(e)(1)(i)Ïof€40CFRpart63,€subpartA.€€The€CAR€has€the€same€wording€usedÏby€the€HON€on€this€issue.€€The€paragraph€referenced€by€theÏcommenter,€ñýñððñýññýñððñýñ63.102(a)(4),€is€incorporated€in€the€CAR€asÏñýñððñýññýñððñýñ65.3(a)(4).Ìà  àIn€regard€to€the€commenter's€request€that€the€Agency'sÏfuture€rulemaking€should€reflect€the€reality€that€the€AgencyÏrealizes€that€it€is€"impracticable,€as€well€as€contradictory...toÏexpect€sources€to€continually€meet€applicable€emissions€standardsÏwhile€experiencing€a€startup,€shutdown,€or€malfunction,"€we€willÏdetermine€the€provisions€that€are€appropriate€for€futureÏrulemakings€when€these€rules€are€developed.€€The€commenter€isÏfree€to€make€these€comments€for€future€rulemakings€during€theÏpublic€comment€period€for€those€rules.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€theÐ œì" Ðproposal€preamble€should€be€amended€to€indicate€that€excursionsÏwill€not€count€against€the€number€of€excused€excursions€when€anÏSSM€plan€applies€and€is€followed.Ìà  àòòResponseóó:€€The€commenter€is€correct€that€an€excursion€thatÐ Lœ* Ðoccurs€during€a€startup,€shutdown,€or€malfunction€event€in€whichÏthe€SSM€plan€is€followed€does€not€count€against€the€number€ofÏexcused€excursions.€€The€CAR€is€clear€on€this€point.€€Ìà  àòòCommentóó:€€Two€commenters€(VI-G„03,€VI-D-06)€support€ourÐ ü!L2 Ðdecision€not€to€require€the€incorporation€of€the€SSM€plan€into€aÏfacility's€title€V€permit€as€a€requirement€in€the€CAR.€€OneÏcommenter€(VI-G-03)€stated€that€the€CAR€SSM€plan€and€proceduresÏprovide€useful€flexibility.€€The€other€commenter€(VI„D„06)€agreesÏwith€the€statements€in€the€preamble€that€incorporating€the€planÏinto€the€titleV€permit€would€be€counter„productive€due€to€theÏfact€the€SSM€plans€will€need€to€be€modified€periodically.€€OneÏcommenter€(IV„G„03)€elaborated€on€their€support€by€comparingÏthese€provisions€in€the€CAR€with€those€in€the€HON.€€The€commenterÐ ˆ,Ø'D Ð(VI-G„03)€stated€that€the€HON€requires,€unlike€the€CAR,€that€theÏSSM€plan€be€incorporated€by€reference€into€the€titleV€permit.€ÏBecause€of€this,€the€commenter€(VI-G„03)€inferred€that€a€titleVÏpermit€modification€would€be€necessary€each€time€the€SSM€plan€isÏchanged.€€The€commenter€(VI-G-03)€believes€the€SSM€plan€should€beÏupdated€as€often€as€necessary€to€accommodate€current€processÏconditions€and€scenarios.€€The€commenter€(VI-G-03)€asserted€thatÏa€facility€should€not€have€to€apply€for€a€permit€modification€toÏmaintain€its€SSM€plan.€€The€commenter€(VI-D-06)€suggested€thatÏthe€CARððs€approach€for€SSM€plans€should€be€used€for€other€rules,Ïsuch€as€MACT€standards,€where€a€source€is€required€to€develop€SSMÏplans.Ìà  àConversely,€another€commenter€(VI-D-01)€recommended€that€theÏCAR€adopt€similar€requirements€to€40CFR€part63€generalÏprovisions.€€The€commenter€(VI„D-01)€noted€that€theÏ40CFRpart63€general€provisions€require€a€reference€to€aÏfacility's€SSM€plan€in€that€facility's€titleV€permit.€€The€SSMÏplan€is€then€required€to€be€filed€on€site.€€Ìà  àòòResponseóó:€€As€stated€by€some€of€the€commenters€and€in€theÐ È$ Ðproposal€preamble€(63FR€57766),€the€CAR€does€not€require€the€SSMÏplan€itself€to€be€incorporated€by€reference€into€a€sourceððsÏtitleV€permit€because€of€the€frequency€at€which€SSM€plans€may€beÏupdated.€€The€general€provisions€of€part63€were€used€as€theÏbasis€for€the€SSM€provisions€of€the€CAR,€and€they€appear€toÏrequire€incorporation€by€reference€of€the€plan€itself€by€statingÏin€ñýñððñýññýñððñýñ63.6(e)(3)(i):€€ÌÓ€Óà0  à"The€plan€shall€be€incorporated€by€reference€into€theÏsources€titleV€permit."Ð (#(# ÐÓ€ÓÌÓ€€ÓHowever,€a€clarification€to€this€language€has€been€released€in€aÏmemorandum€from€John€Seitz,€Director€of€OAQPS€to€Regional€AirÏDirectors€(January18,€1996)€entitled€"Incorporation€of€Startup,ÏShutdown,€and€Malfunction€Plans€into€Sourceððs€TitleV€Permits."€ÏThis€memorandum€clarifies€the€language€by€stating:ÌÓ€Óà0  à"The€language€in€ñýñððñýññýñððñýñ63.6(e)(3)(i)€is€to€ensure€that€theÏrequirement€to€prepare€and€implement€a€SSM€plan€isÏexplicitly€stated€within€a€sourceððs€operating€permit.€€Ô_ÔOurÐ ˆ,Ø'C Ðintention€is€not€for€the€contents€of€the€plan€to€be€actuallyÏwritten€into€the€permit."Ð (#(# ÐÓ€ÓÌÓ€€ÓTherefore,€the€commenter€(IV-G-03)€is€incorrect€in€stating€thatÏthe€HON€requires€the€plan€to€be€incorporated€by€reference€intoÏthe€titleV€permit.€€The€HON€does€not€specifically€state€that€theÏplan€must€be€incorporated€by€reference€but€relies€on€theÏrequirements€of€Ô_Ôðð63.6(e)(3)(i).Ô_Ô€€As€just€explained,€theÏprovisions€of€Ô_Ôðð63.6(e)(3)(i)Ô_Ô€have€been€clarified€in€theÏmemorandum€to€mean€that€the€requirement€to€prepare€and€implementÏa€SSM€plan€must€be€in€the€sourceððs€operating€permit.€€The€SSMÏrequirements€under€the€HON€are€the€same€as€those€in€the€CAR€butÏthe€CAR€is€clearer€in€that€it€incorporates€the€clarification€weÏreleased€in€the€before€mentioned€memorandum.€€Ìà  àIn€response€to€the€other€commenter€(VI-D-01),€the€CAR€doesÏadopt€the€requirements€of€the€general€provisions€of€part63€butÏit€incorporates€this€clarification.Ìà  àIn€reviewing€these€provisions,€we€have€determined€that€theÏrequirement€to€keep€the€SSM€plan€onsite€needs€to€be€statedÏexplicitly.€€Although€it€is€obvious€that€the€plan€must€be€keptÏon„site€based€on€the€general€record€retention€requirements€inÏÔ_Ôðð65.4(c),Ô_Ô€it€is€not€completely€clear€that€the€plan€must€beÏretained€on„site€after€2years€(or€6months€as€specified€inÏÔ_Ôðð65.4(c)(2)).Ô_Ô€€Therefore,€we€have€clarified€in€the€SSM€provisionsÏthat€the€SSM€plan€must€be€retained€on„site.€€This€is€necessaryÏbecause€of€the€frequency€in€which€this€document€may€change€andÏthe€need€to€have€it€available€for€review.€€Also,€among€otherÏreasons,€the€document€may€need€to€be€revised€if€found€to€beÏinadequate.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€requested€a€revision€toÐ %l 7 ÐÔ_Ôðð65.3(a)(3)Ô_Ô€to€recognize€that€shutdown€of€control€devices€isÏallowed€during€periods€of€planned€routine€maintenance€for€controlÏdevices€used€on€storage€vessels,€as€specified€elsewhere€in€theÏCAR.Ìà  àòòResponseóó:€€In€the€language€at€Ô_Ôðð65.3(a)(3),Ô_Ô€shutdown€ofÐ ø*H&A Ðcontrol€devices€is€prohibited€"during€times€when€emissions€areÐ $,t'C Ðbeing€routed€to€such€items€of€equipment€if€the€shutdown€wouldÏcontravene€requirements€of"€the€CAR.€€During€planned€routineÏmaintenance€of€a€control€device€on€a€storage€vessel,€theÏrequirement€to€operate€the€control€device€does€not€apply€[seeÏÔ_Ôðð65.42(b)(4)Ô_Ô€and€(b)(5)(iii)€of€the€CAR].€€Therefore,€a€shutdownÏof€the€control€device€would€not€contravene€the€requirements€ofÏthe€CAR€and€would€be€allowed€under€Ô_Ôðð65.3(a)(3),Ô_Ô€as€drafted€in€theÏproposed€rule.€€In€order€to€make€this€exception€clear,€we€haveÏedited€the€final€language€of€Ô_Ôðð65.3(a)(3)Ô_Ô€to€referenceÏÔ_Ôðð65.42(b)(4)Ô_Ô€and€(b)(5)(iii).ÌÔ  Ô3.1.3€€òòReportingÔ ×üÔóóÐ h¸  Ðà  àòòCommentóó:€€Three€commenters€(VI„D„02,€IV„G„01,€VI„G„03)Ð ”ä  Ðsupported€limiting€the€amount€of€time€for€approval€or€disapprovalÏof€a€schedule€change€for€reporting.€€Two€commenters€(IV-G-01,ÏVI-G-03)€advocated€that,€under€Ô_Ôðð65.5(h)(3)Ô_Ô€of€the€CAR,€an€ownerÏor€operator€should€be€able€to€assume€approval€of€a€request€for€anÏadjustment€to€a€time€period€or€postmark€deadline€if€writtenÏdisapproval€is€not€received€within€15days.€€Another€commenterÏ(VI-D-02)€suggested€modifying€Ô_Ôðð65.5(h)Ô_Ô€to€provide€automaticÏapproval€of€requests€in€90days,€unless€the€AdministratorÏindicates€disapproval€or€a€desire€to€review€the€request,€in€whichÏcase€the€change€would€not€be€allowed€until€the€review€isÏcompleted.€€One€commenter€(IV-G-01)€stated€that€many€requests€goÏunanswered€and€that€the€commenter's€company€has€been€waiting€onÏsome€approvals€for€more€than€1year.€€Ìà  àòòResponseóó:€€We€acknowledge€that€it€is€desirable€for€theÐ ü!L2 ÐAdministrator€to€approve€or€deny€requests€within€the€designatedÏ15„day€period.€€However,€it€is€important€that€the€changes€inÏschedule€be€made€upon€mutual€agreement€between€the€facilities€andÏthe€States,€because€both€parties€must€change€their€respectiveÏschedules€for€handling€the€reports.€€Therefore,€it€is€notÏappropriate€to€grant€a€blanket€approval€for€all€requests€that€goÏunanswered€in€that€period€of€time.€€It€is€suggested€that€theÏâ âfacilities€consider€their€experience€with€typical€turn„aroundÐ \+¬&B ÐÔ_Ôtimes€on€requests€and€factor€that€experience€into€their€schedulesÏwhen€submitting€requests.€€Ìâ âà  àòòCommentóó:€€Similarly,€one€commenter€(VI-G-03)€advocated€thatÐ X Ða€time€frame€be€provided€for€the€Administrator's€action€onÏrequests€for€a€determination€of€equivalence€for€alternativeÏemission€limits.€€The€commenter€(VI-G-03)€argued€that€alternativeÏemission€limits€that€provide€equivalent€protection€should€notÏneed€to€be€published€in€the€òòFederal€Registeróó.€€The€commenterÐ ä 4 Ðstated€that€in€the€standard€for€determination€of€equivalency,€theÏuse€of€the€term€"performance€standards"€is€confusing€and€shouldÏbe€deleted.Ìà  àòòResponseóó:€€In€regards€to€requests€for€alternative€means€ofÐ ”ä  Ðemission€limitation,€there€are€several€steps€required€for€theÏAdministrator€to€approve€or€deny€these€requests.€€For€thisÏreason,€it€is€difficult€to€require€a€specific€time€frame€for€thisÏreview.€€It€is€suggested€that€the€facilities€consider€theirÏexperience€with€typical€turn„around€times€on€requests€and€factorÏthat€experience€into€their€schedules€when€submitting€requests.€€Ìà  àWe€assume€that€the€commenter€is€referring€to€the€alternativeÏmeans€of€emission€limitation€provisions€of€ðð65.8€when€referringÏto€"alternative€emission€limits."€€The€alternative€means€ofÏemission€limitation€provisions€allow€a€source€to€propose€anÏalternative€to€any€design,€equipment,€work€practice,€or€operationÏstandard.€€A€source€can€not€propose€an€alternative€to€aÏperformance€standard€which€might€be€in€the€form€of€an€emissionÏlimit€or€percent€emission€reduction.€€In€the€case€of€performanceÏstandards,€it€is€not€necessary€to€propose€alternatives€becauseÏperformance€standards€allow€any€means€of€reduction€a€sourceÏchooses€as€long€as€it€meets€the€performance€level,€the€emissionÏlimit,€or€emission€reduction.€€The€inclusion€of€the€phrase€"(butÏnot€performance€standards)"€is€to€clarify€that€alternative€meansÏof€emission€limitation€requests€are€not€appropriate€forÏperformance€tests.€€We€consider€this€clarification€helpful.€Ìà  àWe€maintain€that€public€review€through€publication€in€theÏòòFederal€Registeróó€is€appropriate€because€while€the€requirements€ofÐ ˆ,Ø'D Ðthe€CAR€have€undergone€public€review,€the€requested€alternativesÏhave€not.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that,€for€theÐ X Ðpurpose€of€using€an€alternative€means€of€emission€limitation,€itÏmay€be€unreasonable€and€costly€to€require€an€owner€or€operator€toÏdemonstrate€the€emission€reduction€achieved€by€a€required€workÏpractice€for€12months.€€The€commenter€(IV-G-01)€reasoned€that€weÏshould€already€know€the€emission€reduction€achieved€by€theÏrequired€work€practice,€and€that€the€owner€or€operator€shouldÏonly€have€to€demonstrate€the€emission€reduction€achieved€by€theÏproposed€alternative€work€practice.€€The€commenter€(IV-G-01)€alsoÏnoted€that€in€ðð65.102(d)(2)(ii),€the€term€"equipment"€is€usedÏrather€than€"work€practice."Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€the€12„monthÐ ì< Ðrequirement,€ðð65.102(d)(2)(ii),€was€removed€from€the€finalÏregulation.€€It€is€the€operatorððs€burden€to€provide€sufficientÏdata€to€support€an€alternative€work€practice€which€could€be€moreÏor€less€than€12€months.€€Ìà  àThe€commenter€is€incorrect€in€that€the€term€"work€practice"Ïshould€have€been€used€in€ðð65.102(d)(2)(ii)€instead€ofÏ"equipment."€€This€paragraph€refers€to€each€equipment€type€notÏeach€work€practice.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€recommended€revisingÐ xÈ, Ððð65.4(a)€to€refer€to€the€regulated€source€or€site,€rather€than€toÏthe€owner€or€operator.€€The€commenter€contended€that€recordÏretention€requirements€should€be€specified€in€terms€of€sites€orÏsources€that€are€or€are€not€subject€to€titleV,€because€owners€orÏoperators€may€have€to€comply€with€titleV€at€one€site€but€not€atÏanother.Ìà  àòòResponseóó:€€We€have€made€changes€in€the€final€rule€inÐ ¬&ü!: Ððð65.4(a)(1)€and€(a)(2)€to€make€the€clarification€suggested€by€theÏcommenter.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€that€we€clarifyÐ 0*€%@ Ðwhich€months€the€first€periodic€report€should€cover€for€sourcesÏelecting€to€comply€with€the€CAR€upon€initial€startup.€€TheÐ ˆ,Ø'D Ðcommenter€suggested€that€the€first€periodic€report€should€coverÏthe€6„month€period€beginning€on€the€date€the€Initial€ComplianceÏStatus€Report€is€due,€because€parameters€may€not€be€establishedÏfor€240days€after€the€applicable€compliance€date€specified€inÏthe€referencing€subparts,€or€60days€after€the€performance€test.€€Ìà  àAnother€commenter€(VI-G-03)€suggested€that€the€language€atÏðð65.5(e)(2)€for€periodic€report€due€dates€is€too€complicated.€ÏThe€commenter€(VI-G-03)€suggested€alternative€language€asÏfollows:€€"The€report€is€due€on€or€before€February28€for€theÏperiod€of€July€1€through€December31€and€August31€for€the€periodÏof€January€1€through€June€30."Ìà  àòòResponseóó:€€The€commenter€(IV„G-01)€is€correct€that€theÐ ”ä  Ðproposed€CAR€is€not€clear€on€when€the€first€periodic€report€isÏdue€for€sources€electing€to€comply€with€the€CAR€upon€initialÏstartup.€€The€final€rule€has€been€clarified€to€state€that€theÏfirst€periodic€report€covers€the€6-month€period€after€the€InitialÏCompliance€Stats€Report€is€due.€€As€the€commenter€noted,€theÏparameter€ranges€will€be€included€in€the€Initial€ComplianceÏStatus€Report€and€before€that€time€there€will€be€no€basis€forÏjudging€performance.€€Ìà  àWe€acknowledge€that€the€language€would€be€simpler€if€theÏperiodic€reporting€6-month€periods€were€required€to€be€January1Ïthrough€June30€and€July1€through€December31.€€However,€theÏcompliance€dates€do€not€often€occur€at€the€beginning€or€middle€ofÏthe€calendar€year.€€In€order€to€ensure€that€all€periods€are€beingÏreported€on,€the€due€date€must€be€triggered€by€the€complianceÏdate.€€Also,€the€report€is€due€within€2months€after€the€6-monthÏperiod.€€It€is€difficult€to€explicitly€state€these€requirements;Ïsome€sources€may€find€this€paragraph€confusing.€€However,€theÏsource€has€the€opportunity,€through€the€titleV€process€and€byÏless€formal€means,€to€revise€or€adjust€the€semiannual€reportÏschedule€with€the€delegated€authority.€€Also,€through€ðð65.5(h)Ïthe€source€and€the€delegated€authority€can€agree€on€a€differentÏschedule.€€We€consider€the€clarity€and€flexibility€sufficient€toÏmake€this€paragraph€workable.€Ð ˆ,Ø'D Ðà  àòòCommentóó:€€One€commenter€(VI-G-03)€asserted€that€to€maintainÐ ° Ðcertainty,€consistency,€and€the€intent€of€the€CAR,€that€recordÏretention€periods€should€only€be€specified€in€ðð65.4(a)(1)€andÏ(a)(2).€€The€commenter€(VI„G„03)€objected€to€the€regulatedÏcommunity€having€to€search€throughout€the€CAR€for€longerÏretention€times€than€those€specified€in€ðð65.4(a)(1)€and€(a)(2).€ÏThe€commenter€(VI-G-03)€asked€that€all€other€requirements€orÏreferences€to€retention€periods€other€than€those€found€inÏðð65.4(a)(1)€and€(a)(2)€be€removed.Ìà  àòòResponseóó:€€It€is€necessary€to€keep€some€records€longer€thanÐ <Œ  Ðthe€retention€times€listed€in€ðð65.4(a)(1)€and€(a)(2).€€These€areÏsituations€where€the€information€does€not€change€often€but€it€isÏstill€necessary€to€have€the€information€available,€such€asÏmonitoring€data€for€connectors€monitored€every€8years.€€To€addÏclarity€and€to€avoid€the€regulated€community€having€to€searchÏthroughout€the€CAR€for€longer€retention€times,€we€have€listed€inÏðð65.4(a)(1)€and€(a)(2)€all€paragraphs€where€longer€retentionÏtimes€are€required.€Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€noted€that€the€currentÐ È$ Ðlanguage€in€ðð65.5(d)(2)€appears€to€require€submission€of€theÏinitial€compliance€status€report€on€the€240thday€after€theÏcompliance€date€or€on€the€60thdayafter€the€performance€test.ÏThe€commenter€(VI-D-02)€requested€a€change€of€the€wording€toÏðð65.5(d)(2)€to€specify€that€the€report€is€required€withinÏ240days€"or€within€60days€after€the€completion€of€theÏperformance€test."Ìà  àòòResponseóó:€€We€agree€that€the€initial€compliance€statusÐ (#x4 Ðreport€does€not€have€to€be€submitted€òòonóó€the€240th€day€after€theÐ T$¤6 Ðcompliance€date€or€òòonóó€the€60th€day€after€the€performance€date.€Ð €%Ð 8 ÐWe€have€made€the€suggested€edits€so€that€ðð65.5(d)(2)€requiresÏsubmission€within€the€240€or€60day€time€periods.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€noted€that€ðð65.5(i)Ð )T$> Ðrequires€some€information€to€be€submitted€via€titleV€orÏotherwise,€but€does€not€specify€when€or€for€what€purpose.€€TheÏcommenter€(VI-D-02)€asked€if€this€is€the€content€requirement€forÐ ˆ,Ø'D Ðthe€compliance€status€report€and,€if€so,€if€the€requirementÏshould€be€moved€to€paragraph(d).Ìà  àòòResponseóó:€€The€items€listed€in€ðð65.5(i)€are€information€thatÐ X Ðwe€assume€would€be€included€in€the€sourceððs€titleV€permitÏapplication.€€However,€in€the€case€where€the€owner€or€operatorÏmay€not€think€to€include€this€information,€we€are€explicitlyÏlisting€these€items€as€needing€to€be€included€in€the€titleVÏpermit.€€This€was€also€done€in€the€HON€at€ðð63.152(e).ÌÔ  Ô3.1.4€€òòComplianceÔ û'ÔóóÐ `  Ðà  àòòCommentóó:€€One€commenter€(VI-G-03)€asserted€that€ðð65.3(b)€andÐ <Œ  Ð(c)€fail€to€provide€standards€for€determination€of€compliance.€ÏThe€commenter€contended€that€the€terms€"acceptable€operation€andÏmaintenance€procedures"€and€"proper€operation€and€maintenanceÏpractices"€are€subjective€and€do€not€provide€plant€personnel€withÏguidance€on€what€is€actually€required.€€The€commenter€assertedÏthat€this€will€lead€to€unnecessary€litigation.€€The€commenterÏstated€that€these€subjective€standards€should€be€replaced€byÏobjective€standards€such€as€performance€tests,€emissionÏstandards,€specified€operating€parameters€and€otherÏspecifications€in€the€rules,€permits,€and€applicable€startup,Ïshutdown,€and€malfunction€plans.Ìà  àòòResponseóó:€€The€provisions€of€these€paragraphs€[ðð65.3(b)€andÐ Lœ* Ð(c)]€are€general€provisions€giving€the€Administrator€theÏauthority€to€use€a€variety€of€sources€of€information€to€makeÏfindings€of€compliance.€€These€paragraphs€specify€several€typesÏof€information€that€can€be€used€to€determine€if€"acceptableÏoperation€and€maintenance€procedures"€or€"proper€operation€andÏmaintenance€practices"€have€been€followed.€€These€provisions€alsoÏrefer€to€the€more€specific€provisions€for€performance€tests,Ïmonitoring,€and€SSM€plans.Ìà  àAlso,€the€language€of€these€paragraphs€is€consistent€withÏthe€40CFR€part63€general€provisions€and€provisions€of€40CFRÏ63.152€of€the€HON.€€We€consider€this€language€to€be€sufficientlyÏâ âclear.Ð \+¬&B Ðà  àòòCommentóó:€€One€commenter€(VI-G-03)€wanted€to€know€what€theÐ ° Ðâ âconsequence€of€having€been€"deemed€to€have€failed€to€have€appliedÏthe€control€in€a€manner€that€achieves€the€required€operatingÏconditions"€as€set€forth€in€ðð65.3(b)(1).€€The€commenter€(VI-G-03)Ïnoted€that€ðð65.3(b)(2)€states€that€excursions€are€not€violations.€ÏÌà  àòòResponseóó:€€If€a€source€has€been€"deemed€to€have€failed€toÐ ¸   Ðhave€applied€the€control€in€a€manner€that€achieves€the€requiredÏoperating€conditions,"€then€the€source€has€violated€the€operatingÏstandard.€€The€commenter€is€incorrectly€reading€ðð65.3(b)(2).€ÏThis€paragraph€reads€"An€excursion€is€not€a€violation...,€if€theÏconditions€of€paragraphs(b)(2)(i)€or€(b)(2)(ii)€of€this€sectionÏare€met."€€We€have€edited€this€sentence€to€make€it€easier€to€readÏand€less€likely€to€be€read€incorrectly.Ìà  àòòCommentóó:€€One€commenter€(IV„G-01)€stated€that€theÐ h Ðinformation€in€ðð65.3(b)(2)€was€a€subset€of€the€information€inÏðð65.156(d).€€The€commenter€asserted€that€all€of€the€informationÏshould€be€in€one€place€in€subpartG.Ìà  àòòResponseóó:€€The€provisions€in€ðð65.3(b)(2)€are€of€a€generalÐ È$ Ðnature€regarding€excursions€of€parameter€monitoring€ranges.€ÏThese€provisions€are€a€part€of€the€general€complianceÏdetermination€procedures€when€parameter€monitoring€is€used.€€TheÏprovisions€in€ðð65.156(d)€pertain€to€more€specific€requirements€onÏhow€to€determine€excursions,€excursions€that€are€not€violations,Ïand€how€many€excused€excursions€are€allowed.€€We€maintain€thatÏthe€segregation€of€the€general€provisions€and€the€more€detailedÏones€is€important€for€understanding.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€requested€that€theÐ T$¤6 Ðfollowing€sentence€be€removed€from€ðð65.3(c):€€"The€AdministratorÏwill€make€findings€of€compliance€with€the€standards€of€this€partÏusing€metric€units."€€The€commenter€questioned€if€this€wouldÏrequire€facilities€to€replace€all€English€unit€monitoringÏequipment€with€metric€unit€equipment.€€If€so,€the€commenterÏcontended€this€would€be€an€unreasonably€excessive€cost.€€TheÏcommenter€stated€that€if€facilities€are€allowed€to€keep€EnglishÐ ˆ,Ø'D Ðunit€monitoring€equipment,€the€compliance€determination€may€inferÏnon„compliance€due€to€rounding€and€conversion€factors.€€TheÏcommenter€asserted€that€this€would€result€in€disputes€that€wouldÏbe€burdensome€to€facilities,€EPA,€State€enforcement,€andÏpermitting€agencies.Ìà  àòòResponseóó:€€Unlike€the€HON€and€many€other€MACT€standards,€weÐ Œ Ü  Ðhave€provided€both€English€and€metric€units€for€all€values€in€theÏCAR.€€The€HON€and€other€rules€only€provide€values€in€metric€unitsÏbecause€the€Administrator€does€make€all€findings€of€complianceÏbased€on€metric€units.€€In€order€to€help€readers€of€the€rule,€weÏhave€added€the€English€units€to€the€CAR.€€To€clarify€that€findingÏof€compliance€will€only€be€made€using€metric€units,€we€added€theÏsentence€the€commenter€objects€to.€€If€this€sentence€were€deletedÏthen€all€of€the€values€in€English€units€would€also€have€to€beÏdeleted.€€This€would€still€not€change€the€fact€that€findings€ofÏcompliance€are€based€on€using€metric€units.€€This€has€not€meantÏin€the€past€nor€does€it€mean€now€that€sources€must€change€theirÏmonitoring€equipment.€€It€only€means€that€any€monitoring€dataÏcollected€in€English€units€will€be€converted€to€metric€andÏcompared€to€the€metric€parameter€monitoring€ranges€or€emissionÏlimits€of€the€standard.€€The€use€of€conversion€factors€areÏunavoidable.€€See€the€US€Code,€title15,€section205a€for€aÏstatement€of€the€government's€policy€of€metric€units.€€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€requested€that€the€phraseÐ ¤ô. Ð"or€to€protect€personnel€safety"€be€added€to€the€followingÏlanguage€in€ðð65.3(a)(3)€regarding€when€it€is€allowable€to€shutÏdown€items€of€equipment€required€by€the€CAR:€€"Paragraph(a)(3)Ïof€this€section€does€not€apply€if€the€item€of€equipment€or€CPMSÏis€malfunctioning€or€if€the€owner€or€operator€must€shut€down€theÏequipment€to€avoid€damage€due€to€a€contemporaneous€startup,Ïshutdown,€or€malfunction€from€the€regulated€source€or€portionÏthereof."Ìà  àòòResponseóó:€€The€proposed€paragraph€ðð65.3(a)(3)€has€beenÐ 0*€%@ Ðdeleted€in€the€final€CAR.€€We€decided€that€the€language€of€thisÏparagraph€was€becoming€complicated€in€an€attempt€to€enumerate€allÐ ˆ,Ø'D Ðthe€instances€where€equipment€should€not€be€operated€duringÏstartup,€shutdown,€or€malfunction.€€Instead€we€determined€thatÏthe€general€duty€language€throughout€the€CAR€[the€new€ðð65.3(a)(3)Ïwhich€was€the€proposed€ðððð65.3(a)(4)€and€65.156(c)(2)€and€(c)(5)]Ïregarding€SSM€is€sufficient€to€communicate€the€requirementsÏduring€an€SSM.€Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€asserted€that€it€wasÐ ¸   Ðintended€for€the€CAR€to€allow€one€excused€excursion€of€eachÏoperating€parameter€per€reporting€period.€€However,€the€commenterÏpointed€out€that€the€paragraphs€covering€excused€excursions,Ïpresumably€ðð65.3(b)(4)(iii),€are€missing€although€they€areÏreferenced€from€ðð65.3(b)(1)€and€(b)(4).€€The€commenter€suggestedÏthat€the€missing€paragraphs€should€be€added.€€Another€commenterÏ(VI-G-03)€also€noted€that,€there€is€no€ðð65.3(b)(4)(iii).Ìà  àòòResponseóó:€€The€reference€to€ðð65.3(b)(4)(iii)€in€ðð65.3(b)(1)Ð h Ðshould€have€been€ðð65.3(b)(2);€and€the€reference€toÏðð65.3(b)(4)(iii)€in€ðð65.3(b)(4)€should€have€been€ðð65.3(b)(4)(ii).€ÏThese€cross„references€have€been€changed€in€the€final€CAR.€€TheÏprovision€that€the€commenter€refers€to€regarding€the€CAR€allowingÏone€excused€excursion€is€in€ðð65.156(d)(2).ÌÌÔ& X ÔÔ  Ô3.2à  àSTORAGE€VESSELSÔ ýDÔÐ Lœ* Ðà  àÔ'XLñDÔòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€the€CARÐ xÈ, Ðinclude€an€explanation€that€surge€control€vessels€and€bottomsÏreceivers€are€treated€as€storage€vessels€under€the€CAR,€becauseÏthe€CAR€currently€does€not€have€a€definition€of€storage€vesselsÏin€ðð65.2€of€subpartA.€€Because€this€definition€is€absent€fromÏðð65.2,€the€commenter€(IV-G-01)€claims€that€the€user€is€forced€toÏrely€on€the€storage€vessel€definition€in€the€HON(40CFRpart63,ÏsubpartF,€ðð63.101),€which€specifically€excludes€surge€controlÏvessels€and€bottoms€receivers€from€the€definition€of€storageÏvessels.€€The€commenter€(IV-G-01)€stated€that,€in€this€case,€theÏuser€would€need€to€consult€the€amendments€to€the€HONÏâ â(40CFRpart63,€subpartH)€or€40CFRpart61,€subpartV€toÐ \+¬&B Ðremember€that€surge€control€vessels€and€bottoms€receivers€shouldÏbe€treated€as€storage€vessels€under€subpartC€of€the€CAR.Ìâ âà  àòòResponseóó:€€We€have€clarified€subpartC€of€the€CAR€toÐ X Ðindicate€that€surge€control€vessels€and€bottoms€receivers€will€beÏtreated€as€storage€vessels€when€referenced€to€subpartC.€€We€haveÏalso€added€a€definition€of€bottoms€receiver€to€40€CFR€part61,ÏsubpartV€for€completeness.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€objected€to€the€use€of€theÐ ä 4 Ðterm€"noncontact€floating€roof"€found€in€ðð65.43(a)(4)(i)€of€theÏCAR,€as€well€as€subpartKb€and€the€HON.€€The€commenter€points€outÏthat€subpartKa€only€states€"...each€opening€in€the€roof...."€ÏThe€commenter€maintains€that€the€term€"noncontact"€is€confusingÏbecause€the€roof€is€required€to€float€on€the€liquid.Ìà  àòòResponseóó:€€The€term€"noncontact"€is€defined€in€relation€toÐ ì< Ðstorage€vessel€floating€roofs€within€the€definition€of€externalÏfloating€roof€(EFR).€€The€definition€for€internal€floating€roofÏ(IFR)€also€alludes€to€a€noncontact€floating€roof.€€To€clarifyÏwhat€is€meant€by€the€term,€we€have€revised€the€IFR€definition€toÏbe€as€explicit€as€the€EFR€definition.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€noted€that€ðð65.48(c)(1)Ð ôD& Ðrequires€notification€at€least€30days€prior€to€refilling€an€IFR,ÏEFR,€or€EFR€converted€to€an€IFR,€while€ðð65.48(c)(2)€requiresÏnotification€30days€prior€to€an€EFR€seal€gap€inspection.€€TheÏcommenter€(VI-D-02)€requested€combining€the€notificationÏrequirements€of€ðð65.48(c)(1)€and€(c)(2),€where€applicable,€andÏclarifying€the€proposed€language.€€Ìà  àThe€commenter€(VI„D„02)€asserted€that€ðð65.43(c)(5)€andÏðð65.48(c)(2)€should€also€be€clarified€that€the€seal€gapÏnotification€need€not€be€submitted€exactly€30days€before€theÏmeasurement,€as€the€current€language€seems€to€suggest,€but€"atÏleast"€30days€before.€€The€commenter€(VI-D-02)€also€pointed€outÏthat€both€seal€inspections€and€refilling€can€occur€with€less€thanÏ30days€warning,€when€a€storage€vessel€outage€is€unexpected.€Ïâ âThus,€the€commenter€(VI-D-02)€pointed€out,€provision€for€shorterÐ \+¬&B Ðnotification€periods€is€needed€in€ðð65.48(c)(2)€to€parallel€theÏoption€provided€in€ðð65.48(c)(1)(ii).Ìâ âà  àòòResponseóó:€€There€is€no€prohibition€in€the€CAR€from€includingÐ X Ðboth€notifications€[ðð65.48(c)(1)€and€(c)(2)]€in€a€singleÏsubmission.€€We€maintain,€however,€that€these€provisions€coverÏdifferent€situations€and€that€separate€requirements€for€refillingÏnotifications€and€for€seal€gap€measurements€are€appropriate.€Ìà  àWe€agree€with€the€commenter€that€the€language€inÏðð65.48(c)(2)€should€be€modified€to€clarify€that€the€report€is€dueÏat€least€30days€prior€to€the€seal€gap€measurement.€€We€have€alsoÏedited€the€CAR€to€provide€an€option€for€notification€whenÏunplanned€seal€gap€measurement€occurs.€€We€have€edited€the€CAR€toÏinclude€provisions€in€ðð65.48(c)(2)€that€parallel€the€options€atÏðð65.48(c)(1).Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€requested€additionalÐ h Ðwording€as€follows€for€ðð65.48(d)€to€clarify€intent:€€"...shall€beÏbased€on€the€annual€inspections€required€by€ðð65.43(c)(1)(i)€andÏ(c)(2)(ii)(A)€and€òòany€observations€madeóó€at€other€times€when€theÐ œì" Ðroof€is€viewed."Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€made€theÐ ôD& Ðsuggested€edit€to€help€clarify€the€intent€of€ðð65.48(d).Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€requested€that€theÐ Lœ* Ðrequirements€for€EFR's€converted€to€IFR's€be€spelled€out€in€theÏtext€of€ðð65.45€rather€than€referring€to€paragraphs€from€the€EFRÏand€IFR€sections€of€subpartC.€€The€commenter€stated€that€thisÏwill€reduce€confusion€and€enhance€compliance€for€sources€in€thisÏsituation.Ìà  àòòResponseóó:€€We€have€not€edited€the€final€CAR€to€include€textÐ T$¤6 Ðthat€spells€out€the€requirements€for€EFRððs€converted€to€IFRððs.€ÏThe€proposed€and€final€text€clearly€spells€out€the€paragraphsÏthat€apply.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€requested€a€clarificationÐ )T$> Ðto€ðð65.47(e)€to€indicate€that€the€new€record€requirement€forÏâ âlanding€a€floating€roof€on€its€legs€does€not€apply€during€periodsÐ \+¬&B Ðof€startup,€shutdown,€and€malfunction.€€The€commenter€providedÏsuggested€language€for€the€clarification.€Ìâ âà  àòòResponseóó:€€It€is€not€often€that€a€storage€vessel€will€be€theÐ X Ðsubject€of€a€startup,€shutdown,€or€malfunction€but€in€these€casesÏthe€SSM€plan€must€specify€the€actions€that€should€be€taken.€ÏDepending€on€the€effect€of€the€SSM€on€the€storage€vessel,€theseÏrecords€may€still€be€significant.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€cautioned€thatÐ ä 4 Ððð65.43(a)(4)(iii)€of€the€proposed€CAR€is€confusing€when€comparedÏto€ðð63.119(b)(5)(iii)€because€it€does€not€include€the€phrase,Ï"...for€the€purpose€of€sampling."Ìà  àòòResponseóó:€€The€phrase€"...for€the€purpose€of€sampling"€wasÐ ”ä  Ðdeleted€in€the€CAR€because€it€implied€that€you€could€haveÏpenetrations€for€purposes€other€than€sampling.€€The€onlyÏallowable€penetrations€are€those€specified€in€one€of€theÏparagraphs€under€ðð65.43(a)(4).ÌÌÔ& X ÔÔ  Ô3.3à  àPROCESS€VENTSÐ œì" Ðà  àÔ'Xœê]ÔòòCommentóó:€€One€commenter€(IV-G„01)€stated€that€the€text€ofÐ È$ Ðthe€applicability€section€for€process€vents€(Ô ö]Ôðð65.60)€implies€thatÏsubpartD€applies€to€only€process€vents€that€require€control.€ÏThe€commenter€stated€that€this€is€not€the€case€for€Group2A€andÏ2B€process€vents.€€The€commenter€suggested€the€following€changesÏto€the€text:ÌÓ€Óà8  à"€€The€provisions€of€this€subpart€and€of€subpartA€ofÏthis€part€apply€to€€regulated€material€emissions€fromÏprocess€vents€."Ð Ð Ð  ÐÓ€ÓÌÓ€€Óà  àòòResponseóó:€€We€agree€that€subpartD€of€the€CAR€is€alsoÐ Œ#Ü4 Ðapplicable€to€Group2A€and€2B€process€vents€and€that€control€isÏnot€required€for€these€process€vents.€€However,€we€contend€thatÏthe€language€regarding€being€referenced€from€a€referencingÏsubpart€is€important€to€ensure€that€only€sources€referred€toÏsubpartD€can€use€subpartD.€€We€have€modified€the€language€inÏthe€final€CAR€to€read€as€follows:ÌÓ€Óà8  à"€€The€provisions€of€this€subpart€and€of€subpartA€ofÏthis€part€apply€to€regulated€material€emissions€fromÐ ˆ,Ø'C Ðprocess€vents€where€a€referencing€subpart€referencesÏthe€use€of€this€subpart."Ð Ð Ð  ÐÓ€ÓÌÓ€€Óà  àòòCommentóó:€€One€commenter€(IV-G-01)€asserted€that€an€owner€orÐ ¤ô Ðoperator€should€be€allowed€to€designate€a€group1€vent€stream€asÏhalogenated€without€having€to€perform€any€testing€orÏcalculations.€€The€commenter€(IV-G-01)€pointed€out€that€thisÏallowance€would€assume€a€"worst€case"€and€provide€theÏcorresponding€level€of€control.€€The€commenter€contended€that€theÏallowance€also€would€be€similar€to€designating€a€process€vent€asÏgroup€1€in€accordance€with€ðð65.62(b)(1)€of€the€CAR.Ìà  àòòResponseóó:€€We€agree€that€it€is€reasonable€to€allow€an€ownerÐ T  Ðor€operator€to€designate€a€group€1€vent€stream€as€halogenatedÏwithout€having€to€perform€any€testing€or€calculations.€€ThisÏclarification€has€been€made€in€the€rule.Ìà  àòòCommentóó:€€Commenter€(IV-G„01)€stated€that€the€paragraphÐ ´ Ðheading€in€ðð65.63(a)(2)€should€be€revised€to€add€"by€weight"Ïafter€98percent.Ìà  àòòResponseóó:€€The€paragraph€headings€are€meant€to€be€shortÐ 8ˆ! Ðdescriptors€to€aid€in€reading€the€document.€€We€do€not€considerÏadding€"by€weight"€an€improvement€in€clarity€and€consider€shorterÏheadings€that€still€convey€the€point€better€than€longer€ones.€ÏFor€this€reason,€we€have€revised€this€heading€to€remove€"byÏvolume"€after€20parts€per€million.€€The€heading€now€reads:€"98Ïpercent€or€20parts€per€million€standard."€€The€text€of€the€ruleÏspecifies€the€98percent€be€"by€weight"€and€the€20parts€perÏmillion€be€"by€volume."Ìà  àòòCommentóó:€€One€commenter€(IV„G„01)€suggested€thatÐ Ä"3 Ððð65.63(f)(4)€through€(f)(6)€refer€to€the€corresponding€sectionsÏin€recordkeeping€ðð65.66(d)€and€reporting€ðð65.67(b).Ìà  àòòResponseóó:€€The€proposed€and€final€CAR€at€ðð65.63(f)€contain€aÐ H&˜!9 Ðreference€to€ðð65.66(d).€€We€have€added€a€reference€to€ðð65.67(b)Ïin€ðð65.63(f).Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€urged€that€ðððð65.64(c)€andÐ Ì)%? Ðâ â65.158(c)(2)€of€the€CAR€should€be€amended€to€include€both€MethodÐ ø*H&A Ð18€and€Method€26€or€26A€in€order€to€properly€determine€theÏhydrogen€halide€concentrations€in€any€applicable€vent€stream.Ìâ âà  àòòResponseóó:€€The€method€cited€for€use€in€determining€theÐ X Ðhalogen€status€of€a€vent€stream€is€correct€in€both€ðððð65.64(c)€andÏ65.158(c)(2).€€In€these€sections€of€the€rule,€procedures€areÏgiven€to€determine€whether€a€vent€stream€is€consideredÏhalogenated€and€Method€18€is€cited.€€Under€the€CAR,€as€under€theÏHON,€if€"the€mass€emission€rate€of€halogen€atoms€contained€inÏorganic€compounds"€is€equal€to€or€greater€than€0.45kg/hr€theÏvent€stream€is€considered€halogenated.€€Therefore,€to€determineÏif€a€vent€stream€is€halogenated,€the€organic€and€inorganicÏhalogens€must€be€differentiated.€€Method18€speciates€theÏhalogens€so€that€the€"halogen€atoms€contained€in€organicÏcompounds"€can€be€determined.€€Methods26€and€26A€do€notÏdifferentiate€between€organic€and€inorganic€halogenatedÏcompounds,€so€they€cannot€be€used€to€determine€whether€a€ventÏstream€is€halogenated.Ìà  àMethods26€or€26A€are€required€when€determining€if€aÏscrubber€installed€after€a€combustion€device€has€reduced€theÏhalogens€by€99percent€during€a€performance€test€[seeÏðð65.158(c)].€€Because€many€of€the€organic€halogens€would€beÏconverted€to€inorganic€halogens€in€the€combustor,€the€distinctionÏbetween€inorganic€and€organic€halogens€is€not€relevant.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€asserted€that€footnote(a)Ð ¤ô. Ðto€table2€in€the€CAR€preamble€(63FR57770€"CAR€Process€VentÏGroup€Determinations")€is€unclear,€confusing,€and€does€notÏcapture€the€points€of€the€explanation€given€in€the€preamble€atÏ63FR57770.€€The€commenter€(IV-G-01)€suggested€that€the€footnoteÏbe€revised€as€follows:ÌÓ€Óà8  à"The€50ppm€HAP€concentration€cutoff€only€applies€toÏ40CFRpart63,€subpartG€sources.€€Process€ventsÏsubject€to€only€40CFRpart60,€subpartsRRR€or€NNN€areÏeligible€for€the€300ppm€TOC€cutoff.€€There€is€noÏconcentration€cutoff€for€subpartIII€sources.€€TheÏprocess€vent€provisions€of€subpartDDD€are€notÏconsolidated€under€subpartD€of€the€CAR."Ð Ð Ð  Ðâ âÓ€ÓÐ $,t'A ÐÓ€€Óà  àòòResponseóó:€€We€agree€and€have€revised€the€footnote€to€table2Ð ° Ðâ â(63FR57770)€to€incorporate€the€recommendation€of€the€commenterÏin€the€final€CAR.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€counseled€that€the€CARÐ 4„ Ðshould€be€revised€and€the€proposal€preamble€clarified€to€ensureÏthat€vent€streams€considered€non-halogenated€under€a€referencingÏsubpart€will€be€considered€non„halogenated€under€the€CAR.€€TheÏcommenter€(VI„D-03)€stated€that€it€is€possible€that€a€processÏvent€stream€that€is€halogenated€under€the€part60€referencingÏsubparts€(III,€NNN,€RRR)€would€be€considered€non„halogenatedÏunder€the€CAR.€€The€commenter€(VI„D„03)€asserted€that€this€wouldÏresult€in€a€change€in€which€the€TRE€equation€must€be€used€toÏdetermine€whether€the€stream€requires€control.€€Furthermore,€theÏcommenter€(VI„D„03)€added€that€a€benzene€loading€operationÏsubject€to€40CFRpart61,€subpartBB€would€have€to€demonstrateÏthat€it€is€not€halogenated€if€it€opts€to€use€the€CAR,€subjectingÏthese€sources€to€unnecessary€burden.€€The€commenter€(VI-D-03)Ïreasoned€that€this€will€result€in€some€group2€process€ventsÏmoving€to€group1€because€of€the€change€in€the€TRE€equation.€€TheÏcommenter€(VI-D-03)€suggested€changes€to€the€language€of€the€CARÏat€ðððð65.2,€65.64(g),€and€65.85(c)€to€provide€clarification.Ìà  àòòResponseóó:€€As€explained€in€the€preamble,€at€63€FR€57772,€weÐ Lœ* Ðacknowledge€that€because€the€CAR€adopts€the€HON€halogenated€ventÏstream€determination€procedures,€the€halogenated€status€ofÏprocess€vents€under€40CFR€part60subparts€III,€NNN,€and€RRR€mayÏchange€under€the€CAR.€€We€maintain€that€the€number€of€ventsÏaffected€will€not€be€significant.€€To€be€affected,€the€processÏvent€would€have€to€include€halogenated€components,€be€subject€toÏa€process€vent€NSPS,€and€not€be€subject€to€the€HON.€€We€believeÏthat€this€is€a€small€subset€of€vents.€€And€for€the€fraction€ofÏthis€subset€that€would€experience€a€change€in€halogenated€statusÏunder€the€CAR,€we€remind€the€owner€or€operator€that€complianceÏwith€the€CAR€is€an€optional€replacement€for€continuing€to€complyÏwith€the€referencing€subparts.€€In€the€specific€case€of€40CFRÏpart61,€subpartBB,€we€maintain€that€there€are€very€few€(if€any)Ð ˆ,Ø'D Ðloading€operations€that€are€both€subject€to€subpartBBand€alsoÏhalogenated.€€The€applicability€of€subpartBB€is€such€that€itÏwould€be€nearly€impossible€for€the€liquid€to€be€halogenated.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€supports€the€uniformityÐ 4„ Ðachieved€by€consolidating€the€performance€test€procedures€fromÏthe€SOCMI€NSPS€rules.€€These€rules€require€combustion€devicesÏthat€do€not€use€supplemental€air€to€correct€effluentÏconcentrations€values€to€a€3percent€oxygen€basis.€€The€commenterÏacknowledges€that€sources€subject€to€40CFRpart60,€subpartDDDÏdo€not€have€this€requirement.€€The€commenter€stated€thatÏsubpartDDD€sources€will,€therefore,€incur€increased€stringencyÏif€opting€to€use€the€CAR,€but€this€would€probably€affect€very€fewÏof€those€sources.Ìà  àòòResponseóó:€€We€thank€the€commenter€for€this€support,€andÐ ì< Ðagree€with€the€commenter€that€a€consolidated€approach€toÏperformance€testing€is€simple€and€desirable€even€though€it€mayÏincrease€the€stringency€of€the€rules€for€some.Ìà  àòòCommentóó:€€One€commenter€(VI-D-01)€indicated€that€the€CAR'sÐ œì" Ðrequirement€specifying€a€correction€to€3percent€oxygen€for€allÏcombustion€device€concentration€measurements€could€result€in€a€30Ïpercent€increase€in€reported€concentration€values.€€The€commenterÏ(VI-D„01)€stated€that€this€will€be€problematic€since,€typically,Ïa€7percent€oxygen€correction€is€required€in€current€regulationsÏor€in€Federally€enforceable€permits.€€The€commenter€(VI-D-01)Ïnoted€that€the€CAR€should€not€be€more€stringent€than€theÏunderlying€rules.Ìà  àòòResponseóó:€€The€commenter€is€incorrect€that€current€FederalÐ (#x4 Ðregulations€affecting€the€SOCMI€use€a€7percent€oxygenÏcorrection.€€All€rules€consolidated€that€have€an€oxygenÏcorrection€use€a€3percent€oxygen€correction.€€The€CAR€has€notÏchanged€this€requirement€from€what€is€in€the€referencingÏsubparts.€€Ìà  àòòCommentóó:€€Two€commenters€(VI-D-02,€VI-D-03)€request€that€theÐ 0*€%@ Ðproposed€CAR€subpartD€be€revised€to€provide€a€return€to€aÏprocess€or€fuel€gas€system€as€a€compliance€option€for€group1Ð ˆ,Ø'D Ðprocess€vents.€€One€commenter€(VI-D„03)€stated€that€this€willÏmake€subpartD€of€the€CAR€consistent€with€other€CAR€sections€andÏwill€provide€incentive€for€shared€return€systems€to€use€the€CAR.€ÏThis€commenter€(VI-D-03)€asserts€that€such€gas€streams€can€beÏ"process€vents"€(1)when€the€gas€stream€was,€for€whatever€reason,Ïidentified€as€a€process€vent€when€applicability€was€determined,Ï(2)if€the€stream€is€split,€with€a€portion€going€to€theÏatmosphere€or€to€a€control€device,€or€(3)if€the€stream€isÏsometimes€returned€to€a€process€or€fuel€gas€system€and€at€otherÏtimes€sent€to€a€control€device.Ìà  àòòResponseóó:€€The€CAR,€as€well€as€the€HON,€does€not€have€aÐ h¸  Ðprovision€specifically€allowing€process€vents€to€be€routed€to€aÏprocess€or€fuel€gas€system€as€a€compliance€option.€€These€rulesÏdo€not€provide€this€option€because€it€would€be€confusing€orÏinconsistent€with€definitions€in€some€rules.Ìà  àòòRoute€to€processóó.€€Specifically,€the€NSPS€and€HON€defineÐ D” Ðapplicability€of€requirements€for€vent€streams€at€the€equipmentÏthat€originates€the€vent€stream€and€determine€the€need€forÏcontrol€at€the€exit€of€the€last€recovery€device€in€the€process.€ÏSince€routing€to€a€process€would€most€likely€require€eitherÏrouting€to€an€existing€recovery€device€in€the€process€line€orÏadding€a€recovery€device€to€recycle€the€desired€streamÏcomponents,€allowing€a€compliance€option€of€routing€to€a€processÏwould€merely€move€the€point€where€the€need€for€control€isÏevaluated.€€This€option€already€exists€in€all€of€these€rules;€itÏis€the€option€to€maintain€the€TRE€index€value€greater€than€1.0.€Ï(The€typical€way€to€achieve€and€maintain€a€TRE€greater€than€1.0Ïis€to€use€product€recovery€to€reduce€organic€compound€emissions.)€ÏBased€on€past€experience€with€these€rules,€we€believe€that€itÏwould€be€confusing€to€many€readers€if€in€addition€to€maintainingÏthe€TRE€index€value€greater€than€1.0€option,€we€also€allowed€aÏcompliance€option€of€routing€to€process.€€People€would€notÏunderstand€the€distinction€between€the€two€cases€and€therefore,Ïâ âwould€be€confused€as€to€the€requirements€of€the€rule.Ð \+¬&B Ðà  àòòRoute€to€fuel€gas€systemóó.€€We€believe€that€adding€route€toÐ ° Ðâ âfuel€gas€system€as€a€compliance€option€would€also€be€a€source€ofÏconfusion.€€Under€the€HON,€gas€streams€that€are€routed€to€a€fuelÏgas€system€are€not€process€vents€based€on€the€definitions€inÏ40CFR€part63,€subpartG.€€Therefore,€this€option€would€createÏconfusion€about€the€classification€of€the€gas€stream.€€Under€theÏdefinitions€in€the€three€NSPS€for€SOCMI,€the€streams€would€stillÏbe€regulated€vent€streams,€but€the€rule€already€providesÏcompatible€compliance€options€for€combustion€devices.€€If€we€wereÏto€add€route€to€fuel€gas€system€as€a€compliance€option€for€SOCMIÏNSPS€vent€streams,€there€would€be€questions€as€to€whichÏcompliance€option€was€being€used€in€such€cases€and€why€the€ruleÏretained€provisions€for€use€as€part€of€the€primary€fuel€sent€to€aÏboiler€or€process€heater.€€It€would€be€a€problem€for€peopleÏimplementing€the€rule,€because€there€would€be€no€clearÏdistinction€between€the€cases.€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€pointed€out€several€smallÐ pÀ  Ðburden€reductions€resulting€from€the€engineering€assessmentÏprovisions,€and€noted€that€the€ability€to€use€engineeringÏassessments€is€not€useful€for€units€that€have€been€previouslyÏtested.€€However,€the€commenter€(IV-G-03)€recognized€that€someÏrelief€is€also€afforded€from€the€extensive€recalculation€andÏreporting€if€a€process€change€does€not€affect€the€group2B€statusÏof€a€vent.€€The€commenter€(VI-G-03)€pointed€out€that€only€aÏstatement€to€that€effect€is€required€under€the€CAR,€not€aÏdetailed€report.Ìà  àòòResponseóó:€€The€commenter€is€correct.€€If€a€source€hasÐ (#x4 Ðalready€determined€the€applicability€it€would€not€be€necessary€toÏredo€the€applicability€when€coming€under€the€CAR.€€TheÏengineering€assessment€provisions€provide€several€burdenÏreduction€opportunities€for€units€not€previously€tested€and€thatÏundergo€process€changes.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€asserted€that€the€CARÐ 0*€%@ Ðprovides€some€relief€from€monitoring€process€vents€regulatedÏunder€subpartsNNN€and€RRR.€€The€commenter€(VI-G-03)€stated€thatÐ ˆ,Ø'D Ðno€group2B€vents€(TRE€greater€than€4.0€and€less€than8.0)€areÏdefined€by€these€rules,€therefore€monitoring€is€required€by€theseÏreferencing€subparts.Ìà  àòòResponseóó:€€We€assume€that€the€commenter€is€referring€to€theÐ 4„ ÐTRE€index€value€criteria€for€monitoring€that€was€changed€from€8.0Ïin€40CFRpart60,€subpartsNNN€and€RRR€to€4.0€in€the€CAR.€ÏTherefore,€in€the€CAR,€process€vents€subject€to€subpartNNN€orÏRRR€that€have€a€TRE€between€4.0€and€8.0€do€not€have€to€monitorÏbut€would€have€to€monitor€under€subpartNNN€or€RRR.€€Ìà  àòòCommentóó:€€One€commenter€(IV„G-01)€claimed€that€the€lastÐ <Œ  Ðsentence€of€paragraph€(b)(3)€of€ðð65.142€should€state€that€noÏother€provisions€of€the€subpart€apply€to€Group2€process€vents,Ïbecause€the€paragraph€applies€to€Group2A€and€2B€vents,€not€justÏGroup2A€vents.Ìà  àòòResponseóó:€€The€provisions€of€subpartG€of€the€CAR€are€notÐ h Ðapplicable€to€Group2B€process€vents.€€These€vents€are€notÏreferenced€to€subpartG€from€subpartD.€€Therefore,€it€is€notÏappropriate€to€change€the€reference€from€Group2A€to€Group2.€ÏHowever,€the€earlier€reference€to€Group2€in€ðð65.142(b)(3)€shouldÏalso€be€Group2A,€this€has€been€corrected€in€the€final€CAR.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€referencesÐ  p( Ðmade€to€TRE€index€value€greater€than€1.0€in€the€CAR€ðððð65.63(c)Ïand€(d),€65.65(b),€and€65.66(e)€should€also€say€"and€less€than€orÏequal€to€4.0"€to€clarify€that€Group2A€process€vents€have€theÏsame€specifications€as€Group2A€vents€defined€in€ðð65.62(c).Ìà  àòòResponseóó:€€The€reason€for€defining€Group2A€and€Group2BÐ ü!L2 Ðprocess€vents€in€the€CAR€is€because€several€words€can€beÏeliminated€each€time€a€Group2€vent€is€referred€to.€€These€longÏdescriptions€that€follow€the€term€Group2€in€the€HON€canÏsometimes€make€for€long€confusing€sentences.€€We€consider€theÏreliance€on€the€terms€Group2A€and€Group2B€to€be€a€clarificationÏand€simplification€of€the€HON€language.Ìà  àAlso,€in€the€paragraphs€referenced€by€the€commenter€theÏlanguage€described€situations€when€"maintaining€a€TRE€above€1.0."€ÏIt€would€not€be€appropriate,€even€without€the€Group2A€and€2BÐ ˆ,Ø'D Ðterms,€to€add€"and€less€than€or€equal€to€4.0"€because€we€do€notÏrequire€that€the€TRE€be€maintained€at€all€times€between€1.0€andÏ4.0,€only€that€it€be€maintained€above€1.0€at€all€times.€Ìà  àòòCommentóó:€€One€commenter€(VI„D„03)€suggested€that€theÐ 4„ Ðprovisions€of€ðð60.665(l)(6)€of€subpartNNN€and€ðð60.705(l)(5)€ofÏsubpartRRR€should€be€revised€so€that€the€units€opting€to€complyÏwith€the€CAR€can€follow€the€provisions€of€the€CAR€for€determiningÏstream€parameters€and€conducting€performance€tests.€€TheÏcommenter€pointed€out€that€the€way€these€provisions€are€currentlyÏdrafted€that€the€source€would€have€to€follow€the€applicableÏprovisions€of€subpartNNN€or€RRR€for€determining€streamÏparameters€and€conducting€the€performance€test€before€going€toÏthe€CAR€to€comply.Ìà  àòòResponseóó:€€The€provisions€of€ðððð60.665(l)(6)€and€60.705(l)(5)Ð ì< Ðhave€been€edited€to€allow€sources€choosing€to€comply€with€the€CARÏto€use€the€provisions€of€the€CAR€to€determine€stream€parametersÏand€to€conduct€the€performance€tests.ÌÌÔ& X ÔÔ  Ô3.4à  àTRANSFER€RACKSÔ c¤ÔÐ È$ Ðà  àÔ'XÈW¤ÔòòCommentóó:€€One€commenter€(IV-G-01)€advised€that€the€CARÐ ôD& Ðshould€be€revised€to€allow€most€of€the€exemptions€for€transferÏracks€that€are€routed€to€vapor€balance€systems€to€apply€toÏtransfer€racks€routed€to€process€or€fuel€gas€systems.€€TheÏcommenter€(IV-G-01)€reasoned€that€the€piping€leading€to€theÏprocess€or€fuel€gas€system€should€not€be€considered€a€closed€ventÏsystem€and€noted€that€the€fuel€gas€systems€are€excluded€from€theÏdefinition€of€control€devices.€€The€commenter€(IV-G-01)€providedÏsuggested€language€for€this€change.Ìà  àòòResponseóó:€€We€agree€that€this€is€a€warranted€clarificationÐ €%Ð 8 Ðof€the€intent€of€these€requirements.€€The€CAR€has€been€revised€toÏallow€exemptions€for€transfer€racks€routed€to€processes€or€fuelÏgas€systems.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€the€termÐ 0*€%@ Ð"transfer€rack"€is€used€in€ðð65.80€of€the€CAR,€but€it€is€notÏdefined€in€subpartA€of€the€CAR.€€The€commenter€requested€thatÐ ˆ,Ø'D Ðthe€term€"transfer€rack"€be€defined€in€subpartA€of€the€CAR,€orÏelse€subpartA€should€reference€the€transfer€rack€definition€inÏHON€subpartF€and€the€loading€rack€definition€in€the€benzeneÏtransfer€operations€NESHAP€subpartBB.Ìà  àòòResponseóó:€€Because€the€term€is€not€defined€in€the€CAR,Ð ` ° Ð"transfer€rack"€has€the€same€meaning€in€the€CAR€as€it€does€forÏHON€sources€and€the€same€meaning€as€"loading€rack"€for€subpartBBÏsources.€€The€language€proposed€to€be€added€to€subpartBB€inÏðð61.300(f)€makes€it€clear€that€"loading€racks"€and€"transferÏracks"€are€the€same.€€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€commended€theÐ h¸  Ðconsolidation€of€the€transfer€rack€rules€from€the€HON€into€theÏCAR€subpartE€and€noted€that€the€consolidation€should€helpÏfacilities€to€demonstrate€full€compliance.€€The€commenterÏ(VI-0G-03)€also€noted€that€HON€group1€transfer€racks€areÏrelieved€of€an€unnecessary€recordkeeping€burden€by€using€the€CAR.€ÏThe€commenter€(VI-G-03)€stated€that€once€a€transfer€rack€has€beenÏdesignated€group1€(requiring€controls),€records€on€throughput,ÏHAP€concentration,€and€partial€pressure€should€not€be€required.Ìà  àòòResponseóó:€€We€thank€the€commenter€for€this€support.Ð ôD& Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€clarification€ofÐ  p( Ðseveral€points€from€the€proposal€preamble€at€63FR€57779.€€TheÏcommenter€(IV-G-01)€first€requested€we€specify€how€the€CARÏconsolidation€of€the€HON€storage€vessel€provisions€clarify€theÏHON€transfer€monitoring€provisions.€€The€commenter€(IV-G-01)Ïstated€secondly€that€we€clarify€that€continuous€monitoring€is€notÏrequired€for€low„throughput€transfer€racks€as€opposed€to€transferÏracks€as€stated€in€the€preamble.€Ìà  àòòResponseóó:€€By€consolidating€on€the€HON€storage€vesselÐ €%Ð 8 Ðprovisions€for€low„throughput€transfer€racks,€the€monitoringÏprovisions€for€storage€vessels€are€extended€to€low-throughputÏtransfer€racks.€€Under€the€CAR,€owners€or€operators€of€low„¼throughput€transfer€racks€can€now€monitor€according€to€aÏmonitoring€plan€they€develop€instead€of€monitoring€specified€byÏthe€rule.Ð ˆ,Ø'D Ðà  àThe€commenter€is€correct€that€the€continuous€monitoringÏrequirements€are€not€required€for€low„throughput€transfer€racksÏunless€continuous€monitoring€is€specifically€included€in€theÏmonitoring€plan.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€the€option€toÐ ` ° Ðcompress€and€route€regulated€material€vapors€to€a€process€isÏgiven€in€ðð65.83(a)(3).€€This€option€appears€to€be€the€same€as€theÏ"routed€to€a€process"€option€given€in€ðð65.83(a)(4).€€TheÏcommenter€(IV-G-03)€suggested€that€the€option€should€be€removedÏfrom€ðð65.83(a)(3),€since€it€appears€redundant.Ìà  àòòResponseóó:€€The€provisions€of€ðð65.83(a)(3)€specify€whatÐ h¸  Ðconstitutes€vapor€balancing.€€In€the€HON,€vapor€balancingÏincluded€compressing€the€regulated€material€and€routing€it€to€theÏprocess.€€The€CAR€has€also€included€this€as€a€form€of€vaporÏbalancing.€€There€are€very€few€provisions€that€pertain€to€vaporÏbalancing.€€The€provisions€of€ðð65.83(a)(4)€are€for€routingÏemissions€to€a€fuel€gas€system€or€process.€€If€a€source€uses€thisÏoption€to€comply,€some€provisions€of€subpartG€of€the€CAR€mustÏalso€be€followed.€€Ìà  àAlthough€both€of€these€provisions€pertain€to€routing€theÏemission€to€a€process,€the€provisions€are€different€depending€onÏwhether€the€vent€stream€is€compressed€or€not.€€We€maintain€thatÏthese€are€two€separate€activities€that€require€two€separateÏparagraphs.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€ðð65.84(a)Ð Ð 0 Ðrequires€the€owner€or€operator€of€a€transfer€rack€to€operate€theÏequipment€in€the€manner€specified€in€paragraphs(a)(1)€or€(a)(2).€ÏHowever,€the€commenter€noted,€paragraph(a)(1)€is€a€closed€ventÏsystem€which€routes€the€regulated€material€vapors€to€a€controlÏdevice€and€paragraph(a)(2)€is€process€piping€that€routes€theÏregulated€material€vapors€to€a€process€or€fuel€gas€system€or€to€aÏvapor€balance€system.€€The€commenter€(IV-G-01)€suggested€Ô_ÔaÏrevision€to€Ô_Ôðð65.84(a)Ô_Ô€because€the€current€wording€suggests€thatÏâ âone€can€operate€a€CVS€or€process€piping.€€Ð \+¬&B Ðà  àòòResponseóó:€€We€have€added€to€the€text€of€Ô_Ôðð65.84(a)Ô_Ô€in€orderÐ ° Ðâ ânot€to€imply€that€one€can€operate€a€CVS€or€process€piping.€€TheÏfinal€CAR€states:ÌÓ€Óà8  à"€€An€owner€or€operator€of€a€transfer€rack€shallÏoperate€it€in€such€a€manner€that€emissions€are€routedÏthrough€the€equipment€specified€in€paragraph(a)(1)€orÏ(a)(2)€of€this€section."Ð Ð Ð  ÐÓ€ÓÌÓ€€ÓÌÔ  Ô3.5à  àEQUIPMENT€LEAKSÔ ã»ÔÐ ä 4  ÐÔ  Ô3.5.1€€òòLeak€DetectionóóÔ 4¼ÔÐ `  Ðà  àòòCommentóó:€€One€commenter€(VI-G-03)€expressed€support€for€theÐ <Œ  Ðstreamlined€leak€detection€and€repair€requirement€provided€in€theÏCAR.€€The€commenter€agreed€with€our€decision€to€eliminate€theÏquality€improvement€program€(QIP)€for€leaking€valves.€€TheÏcommenter€noted€that€the€provisions€of€subpartF€of€the€CAR€thatÏrequire€increased€monitoring€frequency€for€consistently€leakingÏvalves€are€a€sufficient€incentive€toward€quality€improvement.€ÏThe€commenter€supported€our€decision€to€extend€the€maximum€periodÏfor€valve€monitoring€from€1year€to€2years,€and€the€maximumÏperiod€for€connector€monitoring€from€4years€to€8years.€€TheÏcommenter€noted€that€these€provisions€will€eliminate€unnecessaryÏmonitoring€and€give€participating€facilities€an€even€betterÏincentive€to€install€and€maintain€"leak€free"€components.€ÏHowever,€the€commenter€also€stated€that€while€most€facilitiesÏwill€view€extended€monitoring€periods€for€valves€and€connectorsÏas€a€significant€incentive€to€opt€into€the€CAR€from€the€HON,€theÏincentive€is€not€expected€to€be€as€compelling€for€smallerÏfacilities.€€According€to€the€commenter,€extended€monitoringÏperiods€are€expected€to€save€a€facility€with€1,000valves€andÏconnectors€only€approximately€$325€per€year.Ìà  àòòResponseóó:€€We€thank€the€commenter€for€this€support€and€agreeÐ ¬&ü!9 Ðthat€in€general,€the€CAR€offers€more€benefit€to€larger,€complexÏsources.Ìà  àÔ‡*XlÿXXLXlÿÔòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€Ô_Ôðð65.104(a)(2)Ô_ÔÐ 0*€%? Ðof€the€CAR€provides€a€list€of€cases€in€which€sensory€monitoringÏfor€leaks€is€required.€€The€commenter€stated€that€Ô_Ôðð65.117(b)(6)Ô_ÔÐ ˆ,Ø'C Ðrequires€sensory€monitoring€and€suggested€that€we€include€thatÏsection€in€the€list€of€cases€in€which€sensory€monitoring€isÏrequired.Ìà  àòòResponseóó:€€The€CAR€contains€the€procedures€for€conducting€aÐ 4„ Ðpressure€test€of€a€batch€process€in€Ô_Ôðð65.117(b)(6).Ô_Ô€€TheÏprocedures€call€for€the€use€of€a€test€liquid€and€the€visualÏindications€of€liquids€dripping€in€this€circumstance€areÏoccurring€under€controlled€conditions€at€scheduled€times.€€TheÏlist€in€Ô_Ôðð65.104(a)(2)Ô_Ô€contains€references€to€standards€whereÏsensory€monitoring€is€required€to€detect€infrequent,Ïunanticipated€leaks€of€regulated€material.€€It€is€not€appropriateÏto€include€Ô_Ôðð65.117(b)(6)Ô_Ô€in€the€list€provided€by€Ô_Ôðð65.104(a)(2).Ô_ÔÌÔ#†LXlÿXX*Xlÿ-Â#ÔÔ‡*XlÿXXLXlÿÔà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€Ô_Ôðð65.104(a)(1)Ô_ÔÐ À Ðof€the€CAR€provides€a€list€of€some€of€the€cases€in€whichÏinstrument€monitoring€for€leaks€is€required.€€The€commenterÏsuggested€that€we€expand€Ô_Ôðð65.104(a)(1)Ô_Ô€to€be€a€complete€list€ofÏcases€in€which€instrument€monitoring€is€required.Ìà  àòòResponseóó:€€We€note€that€the€intent€of€Ô_Ôðð65.104(a)(1)Ô_Ô€is€toÐ œì" Ðprovide€a€comprehensive€list€of€all€routine€instrument€monitoringÏrequirements.€€This€section€does€not€list€the€non-routineÏinstrument€monitoring€requirements,€such€as€cases€in€whichÏinstrument€monitoring€is€required€only€when€certain€criteria€areÏtriggered€or€where€instrument€monitoring€is€offered€as€aÏcompliance€option.ÌÔ#†LXlÿXX*XlÿñÆ#Ôà  àòòCommentóó:€€One€commenter€(IV„G„01)€requested€the€removal€ofÐ Ð 0 ÐÔ_Ôðð65.104(e)(2)(i)Ô_Ô€and€(e)(2)(ii),€claiming€that€these€twoÏparagraphs€do€not€provide€a€complete€list€of€what€needs€to€beÏrecorded€upon€finding€a€leak.€€The€commenter€noted€thatÏÔ_Ôðð65.105(f)Ô_Ô€provides€a€complete€list.Ìà  àòòResponseóó:€€There€are€two€separate€recordkeepingÐ ¬&ü!: Ðrequirements.€€The€first€is€triggered€upon€òòdetection€of€a€leakóó.€Ð Ø'(#< ÐThe€information€that€must€be€recorded€is€specified€inÏÔ_Ôðð65.104(e)(2),Ô_Ô€and€consists€of€the€instrument€and€the€equipmentÏoperatorððs€name€along€with€the€date€the€leak€was€detected€and€theÏleaking€equipment€identification.€€The€records€specified€inÐ ˆ,Ø'D ÐÔ_Ôðð65.105(f)Ô_Ô€are€the€second€set€of€records,€and€they€document€theÏòòrepair€of€the€leakóó€(not€the€discovery€of€the€leak).€€For€example,Ð Ü, ÐÔ_Ôðð65.105(f)(1)Ô_Ô€and€(f)(2)€require€that€the€date€of€first€attemptÏat€repair€and€the€date€of€successful€repair€be€recorded.€€WeÏmaintain€that€both€sets€of€records€are€unique€and€necessary.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€we€useÐ Œ Ü  Ðthe€term€"observed"€rather€than€"monitored"€inÏÔ_Ôðð65.104(a)(2)(iii).Ô_Ô€€The€commenter€also€suggested€that€theÏreference€in€Ô_Ôðð65.104(a)(2)(iii)Ô_Ô€to€Ô_Ôðð65.104(e)(1)(i)Ô_Ô€should€be€toÏ(e)(1)(iv).Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€replaced€theÐ h¸  Ðterm€"monitored"€with€the€term€"observed"€in€Ô_Ôðð65.104(a)(2)(iii).Ô_Ô€ÏWe€have€also€changed€the€reference€in€Ô_Ôðð65.104(a)(2)(iii)Ô_Ô€toÏÔ_Ôðð65.104(e)(1)(iv).Ô_Ô€ÌÔ  Ô3.5.2€€òòLeak€RepairóóÔ \ÒÔÐ h Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€subpartFÐ D” Ðof€the€CAR€should€include€language€that€addresses€what€is€andÏwhat€is€not€considered€a€violation€when€attempting€to€repair€aÏleak,€similar€to€language€in€Ô_Ôðð63.162(h)Ô_Ô€of€subpartH€(HONÏequipment€leaks).€€The€commenter€(IV-G-01)€pointed€out€thatÏÔ_Ôðð63.162(h)Ô_Ô€of€the€HON€states€that€if€an€attempt€to€repair€a€leakÏis€made€within€the€specified€time,€but€the€attempt€isÏunsuccessful,€the€owner€or€operator€is€not€in€violation€of€theÏHON.€€The€commenter€(IV-G-01)€expressed€concern€that€successfulÏrepair€of€a€leak€may€require€multiple€attempts€and€thatÏapplicable€State€regulations€and€permit€conditions€may€prevent€anÏowner€or€operator€from€designating€the€leaking€piece€of€equipmentÏfor€delay€of€repair.€€The€commenter€(IV-G-01)€suggested€thatÏsimilar€language€be€included€in€subpartF€of€the€CAR€which€wouldÏclarify€that€failing€to€take€action€upon€discovering€a€leak€is€Ïviolation,€but€that€good-faith,€unsuccessful€attempts€at€repairÏare€not€violations.ÌÔ_Ôà  àòòResponseóó:€€The€CAR€contains€language€that€clarifies€thatÐ 0*€%@ Ðleaks,€in€and€of€themselves,€are€not€considered€violations€of€theÏstandard.€€The€standards€require€action€upon€detecting€leaks,Ð ˆ,Ø'D Ðsuch€as€repair€and€recordkeeping€requirements.€€Failing€to€takeÏthe€required€actions€are€violations€of€the€standards;€detecting€aÏleak€is€not€a€violation€of€the€standards.€€Therefore,€it€is€notÏnecessary€to€add€language€from€the€HON€to€the€CAR€to€clarify€thisÏissue.€€If€it€is€necessary€to€delay€repair€beyond€the€requiredÏrepair€time,€the€source€can€employ€the€delay€of€repairÏprovisions.€€A€source€that€neither€repairs€a€leak€nor€uses€theÏdelay€of€repair€provisions€is€in€violation.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€we€reviseÐ `  Ðthe€leak€detection€sections€in€subpartF€of€the€CAR€to€allowÏconsistent€exceptions€for€different€types€of€equipment.€€TheÏcommenter€noted€that€in€ðð65.106(b)€(the€leak€detection€sectionÏfor€valves),€the€owner€or€operator€is€required€to€monitor€valvesÏunless€otherwise€specified€in€ðððð65.102(b),€65.117,€65.118,€orÏparagraph(e)€of€this€section.€€The€commenter€questioned€whetherÏother€requirements,€such€as€monitoring€for€pumps€or€connectors,Ïqualified€for€the€same€exceptions.€€For€example,€the€commenterÏspecifically€called€out€ðð65.107(b),€pump€leak€detection.€€ThisÏsection€does€not€reference€ðð65.117,€so€the€commenter€questionedÏwhether€ðð65.117€is€an€allowable€alternative€(even€though€ðð65.117Ïreferences€ðð65.107).€€The€commenter€suggested€that€we€make€theÏexceptions€to€monitoring€consistent€with€the€valve€exceptions€byÏrevising€ðððð65.107€through€65.114.Ìà  àòòResponseóó:€€We€acknowledge€that€the€proposed€CAR€did€notÐ ¤ô. Ðexplicitly€list€the€exceptions€to€every€requirement,€especiallyÏwhere€the€exception€itself€specified€the€sections€to€which€it€wasÏavailable.€€To€clarify€the€issue€while€keeping€the€languageÏsimple,€we€have€edited€the€CAR€to€remove€the€individualÏreferences€to€the€exceptions€while€adding€language€to€theÏexceptions€to€more€clearly€state€where€they€are€applicable.Ìà  àWe€have€clarified€in€the€rule€the€four€"paths"€through€theÏstandards€of€the€subpart.ÌÓ€Óà0  à1.à0` (#(#àComply€with€the€standards€as€they€are€written.€€ThisÐ 0*€%@ Ðincludes€some€specific€exceptions€within€a€standardÏ(for€example,€the€exception€to€pump€monitoring€forÏpumps€equipped€with€dual€mechanical€seals).Ј,Ø'C` (#` (# Їà0  à2.à0` (#(#àComply€with€ðð65.117€(batch€processes)€instead€of€theÐ ° Ðregular€standards€of€ðððð65.106€through€65.114€andÏ65.116.Ð ` (#` (# ÐÌà0  à3.à0` (#(#àComply€with€ðð65.118€(enclosed„vented€process€units)Ð Ð  Ðinstead€of€the€regular€standards€of€ðððð65.106€throughÏ65.116.Ð ` (#` (# ÐÌà0  à4.à0` (#(#àComply€with€any€of€the€above€options€as€modified€by€anÐ ð @ Ðapproved€alternative€means€of€emission€limitationÏpursuant€to€ðð65.102(b).Ð ` (#` (# ÐÓ€ÓÌÓ€€Óà  àWe€recognize€that€there€is€some€confusion€that€results€fromÏspecifically€listing€the€exceptions€granted€by€ðððð65.116€andÏ65.117.€€The€exception€is€explicitly€mentioned€in€some€standards,Ïbut€not€in€others.€€We€have€edited€the€CAR€to€remove€all€theÏindividual€references€to€ðððð65.116€and€65.117€from€the€standardsÏin€ðððð65.106€through€65.114.€€We€also€edited€ðððð65.116€and65.117Ïto€clarify€that€those€two€sections€are€each€considered€to€beÏalternatives€to€the€entire€set€of€standards€set€out€in€ðððð65.106Ïthrough€65.114.Ìà  àòòComment:óó€€One€commenter€(IV-G-01)€suggested€that€the€leakÐ 8ˆ Ðidentification€removal€requirement€in€ðð65.105(c)(1)€of€the€CARÏfor€valves€and€connectors€be€revised€to€apply€only€to€valves€andÏconnectors€in€gas/vapor€or€light€liquid€service.€€The€commenterÏ(IV-G-01)€pointed€out€that,€according€to€ðð65.110(b)€of€the€CAR,Ïno€monitoring€is€required€for€valves€and€connectors€in€heavyÏliquid€service€if€a€leak€detected€by€auditory,€visual,€orÏolfactory€inspection€is€eliminated€within€5days.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€revisedÐ ˜!è. Ððð65.105(c)(1)€to€apply€only€to€valves€and€connectors€in€gas/vaporÏor€light€liquid€service.€€It€was€our€intent,€however,€to€have€allÏleaking€equipment€identified.€€Therefore,€we€revisedÏðð65.110(b)(2)€to€require€that€if€instrument€monitoring€identifiesÏa€leak,€the€equipment€must€be€identified.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€thatÐ  (ð#: Ððð65.107(e)(1)(viii)€specifies€that€"when€a€leak€is€detectedÏpursuant€to€paragraph(e)(1)(vi)€of€this€section,€it€shall€beÏrepaired€as€specified€in€65.105(a)."€€The€commenter€suggestedÐ $,t'@ Ðthat€we€change€the€reference€from€65.105(a)€to€65.105€to€beÏconsistent€with€other€sections€of€subpartF€and€to€allow€forÏdelay€of€repair.€€Ìà  àòòResponseóó:€€We€agree€that€the€reference€to€ðð65.105(a)€shouldÐ 4„ Ðbe€made€more€general.€€The€reference€has€been€edited€to€ðð65.105Ïto€be€consistent€with€the€other€sections€of€subpartF€of€the€CAR.ÌÔ  Ô3.5.3€€òòDelay€of€RepairóóÔ ìÔÐ ¸   Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€the€delay€ofÐ ä 4 Ðrepair€requirements€for€valves,€connectors,€and€agitators€inÏðð65.105(d)(3)€require€purged€material€to€be€collected€andÏdestroyed€or€recovered€in€a€control€device€complying€withÏðð65.115.€€The€commenter€suggested€that€we€add€the€option€ofÏrouting€the€purged€material€to€a€process€or€fuel€gas€system.Ìà  àòòResponseóó:€€We€agree€that€adding€the€option€of€routing€to€aÐ ì< Ðprocess€or€fuel€gas€system€would€increase€operationalÏflexibility.€€We€have€edited€the€CAR€at€ðð65.105(d)(3)(ii)€toÏincorporate€this€addition.€€We€note€that€it€will€not€always€beÏfeasible€to€route€to€a€fuel€gas€system€or€to€a€process,€but€whereÏit€can€be€done€we€believe€it€is€a€useful€option.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€suggested€that€we€reviseÐ ôD& Ððð65.105(d)€to€make€the€delay€of€repair€language€in€ðð65.105(d)Ïconsistent€with€ðð65.105(d)(1).€€The€commenter€(VI-D-03)Ïrecommended€the€following€language€for€ðð65.105(d):€€"...The€ownerÏor€operator€shall€maintain€a€record€of€the€facts€that€explain€anyÏdelay€of€repairs€and,€where€appropriate,€why€repair€withinÏ15days€was€technically€infeasible€without€a€process€shutdown."Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€edited€theÐ (#x4 Ðlanguage€in€ðð65.105(d)€to€be€consistent€with€that€atÏðð65.105(d)(1).ÌÔ  Ô3.5.4€€òòValves„„Difficult„€and€Unsafe„to„MonitoróóÔ õñÔÐ ¬&ü!: Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€unsafe„Ð Ø'(#< Ðto„monitor€and€difficult„to„monitor€valves€be€exempt€from€theÏprovisions€in€ðð65.106(e)€of€the€CAR€which€require€follow„upÏmonitoring€3months€after€a€leak€is€repaired.€€The€commenterÏ(IV-G-01)€stressed€that€it€would€be€impractical€and€costly€toÐ ˆ,Ø'D Ðconduct€follow„up€monitoring€within€3months€forÏunsafe-to-monitor€and€difficult„to„monitor€valves.€€The€commenterÏ(IV-G-01)€also€pointed€out€that€a€similar€exemption€is€providedÏin€ðð65.108(e)€of€the€CAR€which€exempts€unsafe„to„monitorÏconnectors€from€the€requirement€for€follow„up€monitoring€90daysÏafter€repair.Ìà  àòòResponseóó:€€In€order€to€remain€consistent€with€the€provisionsÐ ¸   Ðof€ðð63.168(h)€of€the€HON,€ðð65.106(e)(1)€of€the€CAR€has€beenÏrevised€to€state€that€unsafe„to„monitor€valves€are€exempt€fromÏthe€3month€follow„up€monitoring€provisions€of€ðð65.106(d)(2)€ofÏthe€CAR.€€To€remain€consistent€with€ðð63.168(i)€of€the€HON,Ïhowever,€ðð65.106(e)(2)€of€the€CAR€has€not€been€revised€andÏdifficult„to„monitor€valves€continue€to€be€subject€to€the€3monthÏfollow„up€monitoring€provisions€of€ðð65.106(d)(2).ÌÔ‡*XlÿXXLXlÿÔà  àDifficult-to-monitor€valves€have€some€obstacle€to€overcomeÐ h Ðbefore€they€can€be€monitored,€but€monitoring€does€not€pose€aÏsafety€hazard.€€The€written€plan€required€by€ðð65.103(c)(4)(ii)Ïfor€difficult-to-monitor€valves€specifies€annual€monitoring€at€aÏminimum.€€Because€personnel€are€not€put€at€risk€and€the€valvesÏmust€be€monitored€at€least€annually,€it€is€not€appropriate€toÏexempt€difficult-to-monitor€valves€from€the€3month€follow-upÏmonitoring€upon€repair€of€a€leak.ÌÔ#†LXlÿXX*Xlÿ"÷#Ôà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€thatÐ xÈ, Ðdifficult-to-monitor€valves€should€be€limited€to€3percent€at€newÏor€reconstructed€sources,€but€not€limited€at€existing€sources.€ÏThe€commenter€(IV-G-01)€also€suggested€that€the€criteria€forÏdesignating€difficult-to-inspect€components€on€a€closed€ventÏsystem€should€not€include€a€limitation€on€the€number€ofÏcomponents.€€The€commenter€(IV-G-01)€proposed€revised€languageÏfor€the€CAR,€40€CFR€part61,€subpartV€and€40CFRpart60,ÏsubpartVV€that€would€reflect€the€above€suggestion€and€alsoÏcreate€consistency€with€subpartH€of€the€HON.Ìà  àòòResponseóó:€€We€intend€to€model€the€difficult„to„monitorÐ 0*€%@ Ðallowance€in€the€CAR€and€in€the€proposed€revisions€to€subpartsVÏand€VV€after€the€provisions€in€the€HON.€€To€correct€draftingÐ ˆ,Ø'D Ðerrors€at€proposal,€we€revised€the€language€in€ðð65.103(c)(2)€ofÏthe€CAR€to€include€a€3percent€limit€on€the€number€of€valves€thatÏcan€be€designated€as€difficult„to„monitor€at€new€or€reconstructedÏsources,€and€to€impose€no€limit€on€the€number€of€difficult„to„¼monitor€valves€at€existing€sources.€€It€is€appropriate€to€limitÏnew€sources€because€designers€can€consider€equipment€layout€whenÏdesigning€a€new€source.€€Also,€the€proposed€amendments€toÏ40CFRpart61,€subpartV€were€revised€at€ðð61.242„11(l)(2)€toÏremove€the€3percent€limit€on€the€number€of€difficult„to„inspectÏcomponents€included€in€closed„vent„systems.€ÌÔ  ÔÔ& X Ô3.5.5€€òòValves„„Subgrouping€and€Monitoring€FrequencyóóÔ *ÿÔÐ h¸  Ðà  àÔ'Xh7ÿÔòòCommentóó:€€One€commenter€(IV-G-01)€expressed€concern€with€theÐ ”ä  Ðwording€in€ðð65.106(c)(1)(i)€of€the€CAR€which€states€that€"theÏowner€or€operator€shall€decide€no€later€than€the€implementationÏdate€of€this€part€or€upon€revision€of€an€operating€permit€whetherÏto€calculate€percent€leaking€valves€on€a€process€unit€or€group€ofÏprocess€units€basis."€€The€commenter€(IV-G-01)€said€that€theÏphrase,€"group€of€process€units€basis"€in€ðð65.106(c)(1)(i)€isÏconfusing€if€it€is€intended€to€refer€to€a€subgroup€of€valvesÏwithin€a€process€unit.€€The€commenter€(IV-G-01)€suggested€thatÏthe€language€be€revised€to€read,€"...on€a€process€unit€or€a€valveÏsubgroup€basis."Ìà  àòòResponseóó:€€The€intent€of€ðððð65.106(b)€and€65.106(c)€is€toÐ xÈ, Ðprovide€the€owner€or€operator€with€maximum€flexibility€forÏmanaging€the€monitoring€of€valves.€€To€be€eligible€for€valveÏsubgrouping€provisions,€the€owner€or€operator€must€firstÏdemonstrate€that€less€than€2percent€of€valves€are€leaking€eitherÏwithin€a€process€unit€or€within€a€group€of€process€units.€€TheÏdecision€at€this€first€step€is€setting€up€the€collection€ofÏvalves€(either€the€valves€in€a€process€unit€or€in€a€group€ofÏprocess€units)€that€may€be€eligible€for€subgrouping.€€ThisÏcollection€of€valves€must€perform€better€than€a€2percent€leakÏrate€before€subgrouping€of€the€collection€is€allowed.€€Ìà  àIf€the€owner€or€operator€decides€to€calculate€the€percentageÏof€leaking€valves€on€a€process€unit€basis,€and€less€thanÐ ˆ,Ø'D Ð2percent€of€the€valves€are€leaking€within€that€process€unit,Ïthen€the€valve€subgrouping€provisions€of€ðð65.106(b)€apply€toÏvalves€within€the€process€unit.€€If€the€owner€or€operator€decidesÏto€calculate€the€percentage€of€leaking€valves€on€a€group€ofÏprocess€units€basis€(more€than€one€process€unit),€and€less€thanÏ2percent€of€the€valves€are€leaking€within€that€group€of€processÏunits,€then€subgroups€of€valves€may€be€designated€within€theÏgroup€of€process€units€(both€within€and€across€individual€processÏunits).€€The€owner€or€operator€may€decide€whether€or€not€to€groupÏseveral€process€units€together€for€the€purpose€of€calculating€theÏoverall€percentage€of€leaking€valves.€€Section65.106(c)(1)(i)Ïspecifies€that€this€decision€must€be€made€no€later€than€theÏimplementation€date€of€the€CAR€or€upon€revision€of€an€operatingÏpermit.€€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€clarificationÐ h Ðregarding€the€appropriate€time€to€notify€the€Administrator€of€aÏdecision€to€begin€or€end€subgrouping€valves.€€The€commenter€notedÏthat€ðð65.106(b)(4)(v)€requires€the€owner€or€operator€to€"notifyÏthe€Administrator€no€later€than€30days€prior€to€the€beginning€ofÏthe€next€monitoring€period€of€the€decision€to€begin€or€endÏsubgrouping€valves."€€The€commenter€also€noted€that€according€toÏthe€same€section,€notification€may€be€included€in€the€nextÏperiodic€report.€€The€commenter€requested€clarification€onÏwhether€notification€can€be€included€in€the€next€periodic€reportÏregardless€of€when€the€next€monitoring€period€begins.Ìà  àòòResponseóó:€€The€notification€to€begin€or€end€subgrouping€ofÐ ü!L2 Ðvalves€must€be€submitted€at€least€30days€prior€to€the€beginningÏof€the€next€monitoring€period.€€This€notification€can€be€includedÏwith€a€periodic€report;€it€does€not€have€to€be€a€separate€notice.ÏIf€you€choose€to€submit€the€notice€as€part€of€a€periodic€report,Ïthen€the€periodic€report€must€be€submitted€at€least€30days€priorÏto€the€beginning€of€the€next€monitoring€period.€€Ìà  àAlso€note€that€only€a€single€notice€is€required.€€If€youÏsubmit€the€notice€as€part€of€your€periodic€report,€then€aÏseparate€notification€is€not€required.Ð ˆ,Ø'D Ðà  àWe€have€revised€ðð65.106(b)(4)(v)€to€clarify€these€twoÏoptions€for€notifications.€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€noted€that€ðððð65.106(b)(3)Ð X Ðand€65.108(b)(3)€in€subpartF€of€the€CAR€determine€the€monitoringÏfrequency€for€valves€and€connectors,€respectively.€€The€commenterÏobserved€that€for€each€doubling€of€the€monitoring€period€(forÏexample,€from€1€to€2years),€the€percent€of€leaking€componentsÏallowed€is€cut€in€half€(for€example,€from€0.5€to€0.25percent€forÏvalves).€€The€commenter€suggested€that€this€pattern€creates€aÏdisincentive€to€strive€for€longer€monitoring€periods,€noting€thatÏfrequent€changes€in€the€leak€detection€and€repair€program€areÏburdensome.€€The€commenter€questioned€how€we€determined€theÏpercent€leaking€valves€that€are€used€to€determine€the€requiredÏmonitoring€frequencies.Ìà  àòòResponseóó:€€Regarding€the€perceived€disincentive€toÐ h Ðestablishing€longer€monitoring€periods,€we€recognize€that€thereÏmay€be€some€burden€involved€with€changing€a€leak€detection€andÏrepair€program.€€This€burden,€however,€may€be€more€than€offset€byÏthe€reduction€in€monitoring€events.€€Going€from€annual€monitoringÏto€monitoring€once€every€2years€effectively€cuts€the€number€ofÏmonitoring€events€in€half,€with€the€only€increase€in€burden€beingÏprocedural€changes€in€the€monitoring€program.€€Ìà  àRegarding€the€rationale€for€determining€the€percent€leakingÏvalves€used€to€determine€the€required€monitoring€frequencies,€weÏnote€that€we€maintained€the€same€emission€rate.€€Doubling€theÏmonitoring€period€while€halving€the€allowable€percent€leakersÏmaintains€the€effective€overall€emission€rate.ÌÔ‡*XlÿXXLXlÿÔÔ  Ô3.5.6€€òòValves„„Other€CommentsóóÔ *ÔÐ T$¤6 ÐÔ#†LXlÿXX*Xlÿ #Ôà  àòòCommentóó:€€One€commenter€(IV„G-01)€recommended€that€subpartFÐ €%Ð 8 Ðof€the€CAR€and€subpartH€of€40CFRpart63€both€allow€the€Ô_ÔownerÏor€operator€to€designate€sealless€valves€as€operating€with€noÏdetectable€emissions,€as€is€allowed€in€40CFRpart60,€subpartVVÏand€40CFRpart61,€subpartV.€€The€commenter€(IV-G-01)€suggestedÏthat€allowing€this€designation€would€provide€an€incentive€forÏfacilities€to€install€sealless€valve€technology.€€The€commenterÐ ˆ,Ø'D Ð(IV-G-01)€also€noted€that€facilities€subject€to€subpartVV€andÏsubpartV€would€incur€an€increased€monitoring€burden€under€theÏCAR€if€they€had€previously€designated€some€sealless€valves€asÏoperating€with€no€detectable€emissions.Ìà  àòòResponseóó:€€The€provisions€in€40CFRpart60,€subpartVV€andÐ ` ° Ð40CFRpart61,€subpartV€for€designating€valves€as€operatingÏwith€no€detectable€emissions€require€that€the€owner€or€operatorÏmonitor€these€valves€annually€to€verify€that€these€valvesÏcontinue€to€operate€with€no€detectable€emissions.€€The€extendedÏmonitoring€periods€and€valve€subgrouping€provisions€of€the€CARÏallow€an€owner€or€operator€to€monitor€valves€even€lessÏfrequently.€€We€expect€that€an€owner€or€operator€would€continueÏto€have€incentive€to€install€advanced€valve€technology,€becauseÏthese€valves€could€be€designated€as€part€of€a€subgroup,€and€couldÏpotentially€be€monitored€as€infrequently€as€once€every€2years€ifÏthe€technology€proves€effective.€€Therefore,€we€did€not€find€itÏnecessary€to€revise€subpartH€of€the€HON€and€subpartF€of€the€CARÏas€suggested€by€the€commenter.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€the€VÔ0øHÈÔLÔÐÿÈøHÔÐ È$ Ðterm€in€the€percent€leaking€valves€calculation€inÏÔ_Ôðð65.106(c)(1)(ii)Ô_Ô€should€include€valves€found€leaking€pursuant€toÏÔ_Ôðð65.106(d)(2)(iii)(A)Ô_Ô€and€(d)(2)(iii)(B),€as€applicable.€€TheÏcommenter€expressed€concern€that€without€explicitly€includingÏthese€valves€in€Ô_Ôðð65.106(c)(1)(ii),Ô_Ô€an€owner€or€operator€mayÏoverlook€the€requirement€to€include€valves€found€leaking€duringÏthe€3month€follow„up€monitoring€required€by€Ô_Ôðð65.106(d)(2).Ô_ÔÌà  àòòResponseóó:€€We€agree€that€the€VÔ0X#¨(#xÔLÔÐÿ(#xX#¨Ô€term€needs€to€be€clarified,Ð (#x4 Ðand€we€have€added€a€reference€to€Ô_Ôðð65.106(d)(2)(iii)(A)Ô_Ô€andÏ(d)(2)(iii)(B)€to€the€VÔ0°%!€%Ð ÔLÔÐÿ€%Ð °%!Ô€term€in€the€percent€leaking€valvesÏequation€at€Ô_Ôðð65.106(c)(1)(ii).Ô_Ô€€Ìà  àòòCommentóó:€€Regarding€plant€sites€with€less€than€250valves,Ð Ø'(#< Ðone€commenter€(IV-G-01)€advised€that€Ô_Ôðð65.106(e)(3)Ô_Ô€should€beÏrevised€to€read€as€follows:€€"Instead,€the€owner€or€operatorÏshall€monitor€each€valve€in€regulated€material€service€for€leaksÏonce€each€quarter€except€as€provided€in€paragraphs€(e)(1)€andÐ ˆ,Ø'D Ð(e)(2)€of€this€section."€€The€commenter€noted€that€this€revisionÏwill€drop€the€reference€to€Ô_Ôðððð65.106(b)(4)(iii)Ô_Ô€through€(b)(4)(v),Ïwhich€the€commenter€contends€is€not€needed.Ìà  àòòResponseóó:€€We€acknowledge€that€the€provisions€for€plantÐ 4„ Ðsites€with€fewer€than€250valves€[see€Ô_Ôðð65.106(e)(3)]Ô_Ô€contained€anÏincorrect€reference€at€proposal.€€We€have€edited€the€section€toÏspecify€that€at€plant€sites€with€fewer€than€250valves,Ïmonitoring€will€be€required€quarterly€or€at€a€frequency€specifiedÏthrough€the€optional€subgrouping€procedure.ÌÔ& X ÔÔ  Ô3.5.7€€òòPumps„„Percent€Leaking€Pumps€CalculationóóÔ p$ÔÐ <Œ  Ðà  àÔ'X<d$ÔòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that,€inÐ h¸  ÐÔ_Ôðð65.107(c)(4)Ô_Ô€of€the€CAR,€the€definition€of€the€PÔ0Ä ”ä ÔTÔÐÿ”ä Ä Ô€term€(theÏtotal€number€of€pumps€in€regulated€material€service)€in€theÏpercent€leaking€calculation€for€pumps€be€changed€to€explicitlyÏinclude€pumps€routed€to€a€process€or€fuel€gas€system€or€equippedÏwith€a€closed€vent€system€routed€to€a€control€device.€€TheÏcommenter€(IV-G-01)€reasoned€that€if€sealless€pumps€and€dualÏmechanical€seal€pumps€can€be€included€in€the€PÔ0ÌœìÔTÔÐÿœìÌÔ€term,€then€aÏplant€should€be€given€credit€for€pumps€vented€to€a€closed€ventÏsystem€routed€to€a€control€device€or€pumps€routed€to€the€processÏor€a€fuel€gas€system.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€the€PÔ0|ÌLœÔTÔÐÿLœ|ÌÔ€term€ofÐ Lœ* Ðthe€percent€leaking€equation€in€Ô_Ôðð65.107(c)(4)Ô_Ô€should€includeÏpumps€routed€to€a€process€or€fuel€gas€system€or€equipped€with€aÏclosed€vent€system.€€The€definition€of€the€PÔ0!PÐ ÔTÔÐÿÐ !PÔ€term€in€thisÏsection€has€been€clarified€to€include€pumps€meeting€the€criteriaÏin€Ô_Ôðð65.107(e)(3),Ô_Ô€in€addition€those€meeting€the€criteria€inÏparagraphs(e)(1)€and€(e)(2).Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€clarification€onÐ €%Ð 8 Ðhow€unsafe-to-monitor€pumps€should€be€accounted€for€in€theÏÔ_Ôpercent€leaking€pump€calculation€in€ðð65.107(c)(4)€of€the€CAR.€ÏThe€commenter€(IV-G-01)€inquired€whether€unsafe-to-monitor€pumpsÏshould€be€excluded€from€the€PÔ0`*°%0*€%ÔLÔÐÿ0*€%`*°%Ô€term€(the€number€of€pumps€foundÏleaking€as€determined€through€monthly€monitoring)€because€theyÏare€not€considered€part€of€the€"monthly€monitoring"€of€pumps.€Ð ˆ,Ø'D ÐAlso,€the€commenter€(IV-G-01)€inquired€whether€unsafe-to-monitorÏpumps€should€be€included€in€the€PÔ0 \Ü,ÔTÔÐÿÜ, \Ô€term€(the€total€number€ofÏpumps€in€regulated€material€service).€€The€commenter€(IV-G-01)Ïreasoned€that€if€the€PÔ0d´4„ÔLÔÐÿ4„d´Ô€term€excludes€unsafe-to-monitor€pumpsÏthen€the€PÔ0 à` °ÔTÔÐÿ` ° àÔ€term€should€exclude€them€as€well.€€Similarly,€theÏcommenter€(IV-G-01)€noted€that€if€the€PÔ0¼ Œ ÜÔLÔÐÿŒ ܼ Ô€term€includesÏunsafe-to-monitor€pumps,€then€they€should€be€included€in€the€PÔ0è 8¸ ÔTÔÐÿ¸ è 8ÔÏterm.Ìà  àòòResponseóó:€€The€PÔ0@ ` ÔLÔÐÿ` @ Ô€term€in€ðð65.107(c)(4)€of€the€CAR€isÐ `  Ðdefined€as€the€number€of€pumps€found€leaking€as€determinedÏthrough€monthly€monitoring€as€required€in€ðð65.107(b)(1).€€WeÏagree€with€the€commenter€that€the€PÔ0Ä ”ä ÔLÔÐÿ”ä Ä Ô€term€does€not€includeÏunsafe„to„monitor€pumps€because€they€are€not€included€in€theÏmonthly€monitoring€required€by€ðð65.107(b)(1).€€Note€thatÏðð65.107(e)(6)€specifically€excludes€these€pumps€from€monthlyÏmonitoring€pursuant€to€ðð65.107(b).€€The€PÔ0tÄD”ÔTÔÐÿD”tÄÔ€term€is€defined€as€theÏtotal€number€of€pumps€in€regulated€material€service,€andÏtherefore€includes€unsafe-to-monitor€pumps€in€regulated€materialÏservice.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€requested€clarification€ofÐ ôD& Ðwhich€pumps€are€included€in€the€divisor€of€the€calculation€thatÏdetermines€the€rate€of€leaking€pumps.€€The€commenter€(VI-D-03)Ïrecommended€that€the€divisor€of€this€calculation€should€be€theÏSCU€for€any€designated€SCU's.€€The€commenter€(VI-D-03)Ïrecommended€that€the€divisor€should€be€based€on€process€unitsÏonly€for€equipment€that€is€not€part€of€a€SCU.€€The€commenterÏ(VI-D-03)€provided€that€the€term€"process€unit"€in€the€proposedÏrule€is€confusing€in€the€issue€of€percent€leaking€pumpsÏcalculation.€€The€commenter€pointed€out€that€the€definition€ofÏ"process€unit"€in€the€proposed€CAR€refers€to€the€referencingÏsubpart€definition,€but€several€referencing€subparts€areÏfrequently€involved€in€a€single€SCU.€€The€commenter€stated€thatÏit€is€also€confusing€how€to€handle€the€unit€grouping€decision€asÏâ âequipment€comes€under€the€CAR.Ð \+¬&B Ðà  àThe€commenter€(VI-D-03)€recommended€that€the€choice€of€aÏâ âSCU,€or€group€of€SCU's,€as€the€basis€for€the€calculation€shouldÏbe€allowed€when€the€first€SCU€comes€under€the€CAR,€regardless€ofÏthe€choice€of€divisor€under€the€HON€or€for€units€continuing€toÏcomply€with€the€HON.€€The€commenter€stated€that€such€a€choiceÏwould€be€binding€for€future€equipment€coming€into€the€CAR.€€TheÏcommenter€(VI-D-03)€asserted€that€a€"new€election"€should€beÏallowed€for€HON€units,€because€the€number€of€pumps€in€an€SCU€willÏbe€different€than€the€number€of€pumps€in€a€HON€unit€(because€onlyÏHAP„containing€pumps€are€covered€by€the€HON).€€The€commenterÏ(VI-D-03)€provided€language€to€make€this€change€in€theÏrequirements€at€ðð65.107(c).Ìà  àòòResponseóó:€€The€final€CAR€does€not€include€the€SCU€concept.€Ð À ÐTherefore,€the€process€unit€referred€to€by€the€divisor€of€theÏequation€is€clearly€referring€to€the€process€unit€that€has€optedÏto€comply€with€the€CAR.Ìà  àWith€regards€to€"new€election"€for€HON€units,€we€haveÏclarified€that€when€a€facility€opts€into€the€CAR,€the€decision€toÏbase€the€calculation€on€a€process€unit€or€group€of€process€unitsÏcan€be€made.€€Because€the€facilityððs€permit€will€be€open€forÏmodification€to€opt€into€the€CAR,€it€is€also€an€opportunity€toÏre„evaluate€and€modify€the€selection€of€process€units€used€as€theÏbasis€of€the€calculation€for€the€process€units€remaining€underÏthe€HON.ÌÔ  Ô3.5.8€€òòPumps„„Visual€InspectionsóóÔ };ÔÐ Ð 0 ÐÔ‡*XlÿXXLXlÿÔà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€we€reviseÐ ü!L2 Ððð65.107(e)(1)(viii)€to€state€that€a€leak€detected€pursuant€toÏparagraph(e)(1)(v)€or€(e)(1)(vi)€must€be€repaired€as€specifiedÏin€ðð65.105.€€The€commenter€cautioned€that€if€paragraph(e)(1)(v)Ïwere€not€included,€then€there€would€be€no€repair€time€limit€forÏleaks€detected€under€that€paragraph.Ìà  àòòResponseóó:€€Under€the€CAR€at€ðð65.107(e)(1)(v),€weekly€visualÐ )T$> Ðinspections€are€required€for€dual€mechanical€seal€pumps.€€IfÏthere€are€visual€indications€of€liquids€dripping,€then€the€ownerÏor€operator€has€a€choice€to€instrument€monitor€the€pump€or€takeÐ ˆ,Ø'D Ðaction€to€eliminate€the€drip.€€At€this€point,€a€leak€has€not€beenÏdetected.€€A€leak€is€detected€only€if€the€owner€or€operatorÏchooses€to€instrument€monitor€and€gets€a€reading€in€excess€ofÏ1,000€ppm.€€If€the€owner€or€operator€chooses€to€take€action€toÏeliminate€the€drip,€then€no€leak€is€detected.Ìà  àThe€distinction€is€important€because,€as€the€commenterÏpointed€out,€there€is€no€time€limit€in€the€proposed€CAR€forÏowners€or€operators€to€take€action€to€eliminate€the€drip.€€ThereÏis€also€no€time€limit€in€the€proposed€CAR€for€performing€theÏinstrument€monitoring€if€the€owner€or€operator€chooses€thatÏoption.€€But€there€is€a€time€limit€(15days)€to€repair€a€leakÏafter€its€presence€has€been€confirmed€through€instrumentÏmonitoring.Ìà  àTo€remedy€this€inconsistency,€we€edited€the€language€inÏðð65.107(e)(1)(v)€to€specify€that€one€of€the€two€proceduresÏ(perform€instrument€monitoring€or€eliminate€the€drip)€must€beÏcompleted€"prior€to€the€next€required€inspection."€€SimilarÏlanguage€was€also€added€to€parallel€requirements€at€ðð65.109(b)(3)Ï(agitator€seals),€ðð65.109(e)(1)(iv)€(dual€mechanical€agitatorÏseals),€and€ðð65.110(b)(1)€(heavy€liquid€service€equipment;Ïpressure€relief€devices€in€liquid€service;€and€instrumentationÏsystems).€€Note€that€ðð65.110€does€not€specify€required€visualÏinspection€frequency.€€In€this€section,€there€is€a€15day€timeÏlimit€to€perform€instrument€monitoring€or€to€take€action€toÏeliminate€the€indications€of€a€leak.ÌÔ#†LXlÿXX*XlÿÖ;#Ôà  àòòCommentóó:€€One€commenter€(VI-D-02)€suggested€that€we€reviseÐ ü!L2 Ðthe€proposed€language€for€ðððð65.107(b)(4)€and€65.107(e)(1)(v)€ofÏthe€CAR€to€eliminate€a€potential€requirement€for€weeklyÏmonitoring€of€pumps.€€The€commenter€pointed€out€that€pumps€mustÏbe€monitored€monthly€by€EPA€Method€21,€and€must€also€be€monitoredÏweekly€by€visual€inspection.€€If€weekly€visual€inspectionÏidentifies€"liquids€dripping,"€the€owner€or€operator€is€requiredÏeither€to€monitor€the€pump€by€Method21,€or€to€eliminate€theÏvisual€indications€of€liquids€dripping.€€The€commenter€noted€thatÏif€the€owner€or€operator€chooses€to€monitor€the€pump€byÐ ˆ,Ø'D ÐMethod21,€and€no€leak€is€found,€then€nothing€is€required.€ÏHowever,€the€commenter€pointed€out€that€visual€indication€ofÏliquids€dripping€is€likely€to€still€exist€each€week€and€thereforeÏrequire€monitoring€by€Method21€each€week.€€The€commenter€pointedÏout€that€a€small€amount€of€liquid€drip€from€a€pump€is€notÏunusual,€particularly€where€a€heavy€barrier€fluid€is€present.€ÏThe€commenter€suggested€that€once€an€owner€or€operator€has€shownÏthat€a€drip€from€a€pump€is€not€a€leak,€subsequent€weeklyÏmonitoring€should€not€be€required.€€The€commenter€recommendedÏthat€additional€paragraphs€be€added€to€ðððð65.107(b)(4)€andÏ65.107(e)(1)(v)€to€clarify€that€additional€instrument€monitoringÏof€a€pump€due€to€visual€indication€of€liquids€dripping€is€onlyÏrequired€once€between€routine€monthly€monitoring.Ìà  àòòResponseóó:€€We€thank€the€commenter€for€pointing€out€thisÐ ì< Ðpotential€problem,€and€we€have€edited€the€language€in€the€pumpsÏstandards€at€ðððð65.107(b)(4)€and€65.107(e)(1)(v).€€The€revisedÏstandards€specify€that€if€weekly€visual€inspections€indicateÏ"liquids€dripping"€and€if€instrument€monitoring€shows€that€thereÏis€not€a€leak,€then€no€additional€instrument€monitoring€isÏrequired€until€the€next€regularly€scheduled€(monthly)€instrumentÏmonitoring.ÌÔ  Ô3.5.9€€òòPumps„„Other€CommentsóóÔ NLÔÐ Lœ* Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€language€inÐ xÈ, Ððð65.107(e)(5)€of€the€CAR€be€revised€to€state€that€if€more€thanÏ90percent€of€the€pumps€at€a€process€unit€are€equipped€with€dualÏmechanical€seals€or€have€no€externally€actuated€shaft€(i.e.Ïsealless€pumps),€then€the€process€unit€should€be€exempt€from€theÏpercent€leaking€calculation€in€ðð65.107(c)€of€the€CAR€rather€thanÏbeing€exempt€from€the€leak€detection€requirements€in€ðð65.107(b)Ïof€the€CAR.€€The€commenter€(IV-G-01)€stated€that€this€revisionÏwould€make€the€CAR€consistent€with€ðð63.163(i)€of€the€Ô_ÔHON.Ìà  àòòResponseóó:€€We€agree€with€the€commenter,€and€we€have€revisedÐ )T$> Ðthe€language€in€Ô_Ôðð65.107(e)(5)Ô_Ô€of€the€CAR€to€state€that€if€moreÏthan€90percent€of€the€pumps€at€a€process€unit€are€eitherÏequipped€with€dual€mechanical€seals€or€have€no€externallyÐ ˆ,Ø'D Ðactuated€shaft€then,€the€process€unit€is€exempt€from€the€percentÏleaking€calculation€in€Ô_Ôðð65.107(c)Ô_Ô€and€not€exempt€from€the€leakÏdetection€requirements€in€Ô_Ôðð65.107(b).Ô_ÔÌà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€clarification€onÐ 4„ Ðportions€of€the€QIP€requirements€for€pumps€in€Ô_Ôðð65.116Ô_Ô€of€the€CAR.€ÏIt€is€the€understanding€of€the€commenter€(IV-G-01)€that€the€dataÏanalysis€of€pumps€in€the€QIP€(specified€by€Ô_Ôðð65.116(d)(5)Ô_Ô€of€theÏCAR€to€be€completed€within€18months€of€beginning€the€QIP)€is€notÏrequired€if€the€facility€meets€the€criteria€to€exit€the€QIP€inÏless€than€18months.€€The€commenter€(IV-G-01)€requested€that€thisÏpoint€be€clarified.€€The€commenter€(IV-G-01)€also€requestedÏclarification€on€whether€a€facility€in€the€QIP€for€the€first€timeÏwould€be€required€to€comply€with€the€requirements€of€the€trialÏevaluation€in€Ô_Ôðð65.116(d)(6)Ô_Ô€of€the€CAR€if€a€data€analysis€hasÏalready€identified€a€superior€pump€design,€technology€orÏoperating€and€maintenance€practice.€€The€commenter€(IV-G-01)€alsoÏpointed€out€that€the€quality€assurance€program€in€Ô_Ôðð65.116(d)(7)Ô_ÔÏand€the€pump€replacement€program€in€Ô_Ôðð65.116(d)(8)Ô_Ô€require€that€aÏfacility€implement€these€programs€after€having€been€in€the€QIPÏfor€3€or€4years,€depending€on€the€number€of€employees€and€numberÏof€pumps€at€the€facility.€€The€commenter€(IV-G-01)€requestedÏclarification€on€how€to€determine€the€length€of€time€a€facilityÏhas€been€in€the€QIP€program€if€the€facility€has€exited€andÏreentered€the€QIP€program€one€or€more€times.Ìà  àòòResponseóó:€€In€response€to€clarifying€what€to€do€for€aÐ Ð 0 Ðfacility€that€exits€a€QIP€in€less€than€18months,€we€agree€withÏthe€commenter€that€the€first€data€analysis€would€not€be€required.€Ïà  àIn€response€to€the€issue€of€facilities€implementing€a€QIPÏfor€the€first€time,€we€agree€that€a€trial€evaluation€programÏwould€not€be€necessary€if€a€data€analysis€specific€to€theÏindividual€situation€at€the€facility€had€previously€beenÏconducted.€€This€pre-existing€data€analysis€would€have€alreadyÏidentified€the€services,€operating€or€maintenance€practices,€andÏpump€or€pump€seal€design€technologies€with€better€than€averageÏemission€performance.€€The€requirement€under€the€QIP€would€thenÐ ˆ,Ø'D Ðbe€to€begin€implementation€of€the€superior€technology€through€theÏreplacement€program.Ìà  àIn€response€to€the€question€regarding€the€time€periodÏrequirements€of€the€QIP,€the€3€and€4year€requirements€wouldÏrefer€to€the€time€passed€since€the€first€triggering€of€the€QIP.€ÏThe€QIP€was€developed€for€poorly€performing€facilities€and€wasÏnot€envisioned€as€an€additional€burden€to€facilities€operating€onÏthe€edge€of€triggering€a€QIP.€€We€recognize€that,€in€the€absenceÏof€data€identifying€a€superior€technology,€a€facility€enteringÏand€exiting€a€QIP€must€re-enter€the€QIP€at€the€performance€trialÏstep.€€Ìà  àWe€note€that€the€intent€of€the€CAR€is€to€create€an€incentiveÏto€improve€performance€such€that€the€QIP€is€not€triggered.€€We€doÏnot€anticipate€many€facilities€needing€to€comply€with€the€QIP,Ïand€we€expect€very€few€sources€to€be€operating€"on€the€bubble,"Ïconstantly€entering€and€exiting€the€QIP.Ìà  àòòCommentóó:€€Two€commenters€(IV-G-01€and€VI„D„03)€recommendedÐ pÀ  Ðchanging€the€leak€definition€for€heavy€liquid€pumps€that€are€notÏin€polymerizing€monomer€or€food/medical€service€from€1,000ppm€toÏ2,000€ppm€in€Ô_Ôðð65.110.Ô_Ô€€The€commenters€(IV-G-01€and€VI„D„03)Ïpointed€out€that,€although€the€leak€definition€for€heavy€liquidÏpumps€is€1,000ppm,€they€are€not€required€to€be€repaired€unlessÏthey€are€detected€to€be€leaking€at€or€above€2,000ppm.€€OneÏcommenter€(IV-G-01)€also€stated€that€a€2,000ppm€leak€definitionÏfor€heavy€liquid€pumps€would€be€consistent€with€the€requirementsÏof€40CFRpart63,subpartH€(HON€equipment€leaks).Ìà  àòòResponseóó:€€We€agree€with€the€commenter;€for€all€heavy€liquidÐ (#x4 Ðpumps€that€are€not€in€polymerizing€monomer€service,€we€intendedÏÔ_Ôðð63.169Ô_Ô€of€the€HON€and€Ô_Ôðð65.110Ô_Ô€of€the€CAR€to€state€that€anÏinstrument€reading€of€2,000€parts€per€million€indicates€a€leak.€ÏWe€have€revised€the€portions€of€Ô_Ôðð65.110(b)(2)Ô_Ô€of€the€CAR€andÏÔ_Ôðð63.169(b)€of€the€HON€relating€to€pumps€in€heavy€liquid€serviceÏto€read:€"If€an€instrument€reading€of€...€5,000parts€per€millionÏor€greater€for€pumps€handling€polymerized€monomers,€2,000partsÏper€million€or€greater€for€all€other€pumps€(including€pumps€inÐ ˆ,Ø'D Ðfood/medical€service)€...€is€measured,€...€a€leak€isÏdetected...."ÌÔ  Ô3.5.10€€òòConnectors„„Exemptions€to€the€Connector€StandardsóóÔ ¨cÔÐ X Ðà  àòòCommentóó:€€Two€commenters€(IV-G-01€and€VI-D-03)€suggestedÐ 4„ Ðthat€owners€or€operators€electing€to€use€the€CAR€should€not€beÏrequired€to€monitor€connectors€that€are€subject€only€to€theÏprovisions€of€40CFRpart61,€subpartV€or€40CFRpart60,ÏsubpartVV.€€Both€commenters€noted€that€these€referencingÏsubparts€require€only€sensory€inspection€of€connectors.€€TheÏcommenters€(IV-G-01€and€VI„D„03)€stated€that€instrumentÏmonitoring€of€connectors€in€gas/vapor€or€light€liquid€serviceÏwould€represent€a€substantial€burden€increase€over€sensoryÏinspection€and€may€be€a€disincentive€for€owners€or€operators€toÏopt€into€the€CAR.€€One€commenter€(IV-G-01)€provided€an€exampleÏfrom€the€CAR€preamble€which€states€that€agitators€subject€only€toÏthe€requirements€of€subpartVV€would€not€be€subject€to€theÏprovisions€for€agitators€in€the€CAR€because€there€are€noÏprovisions€that€apply€to€agitators€in€subpartVV.Ìà  àOne€commenter€(VI-D-03)€suggested€that€an€overallÏenvironmental€benefit€would€be€achieved€if€facilities€currentlyÏusing€sensory€inspection€for€connectors€were€exempt€fromÏmonitoring€using€EPA€Method21.€€The€benefit,€according€to€theÏcommenter€(VI-D-03),€would€be€that€facilities€subject€toÏsubpartVV€of€part60€and€subpartV€of€part61€would€be€moreÏlikely€to€opt€into€the€CAR€and€would€therefore€be€subject€to€aÏmore€stringent€leak€detection€and€repair€program€for€valves.€€TheÏcommenter€(VI-D-03)€stated€that€leak€definition€for€valves€isÏ10,000ppm€in€subpartsV€and€VV€compared€to€500€ppm€in€subpartFÏof€the€CAR.€€The€commenter€(VI-D-03)€pointed€out€that€althoughÏsensory€inspection€of€connectors€instead€of€instrument€monitoringÏappears€to€be€a€relaxation€of€the€proposed€requirements€of€Ô_ÔtheÏCAR,€sensory€inspection€is€not€a€change€from€existingÏrequirements.€€The€commenter€(VI-D-03)€also€alleged€thatÏâ âhistorical€and€recent€connector€emission€data€indicate€thatÐ \+¬&B Ðlittle€benefit€would€be€gained€from€instrument€monitoring€versusÏsensory€inspection€of€connectors.Ìâ âà  àòòResponseóó:€€We€have€considered€the€commenters€request.€€WeÐ X Ðhave€determined€that€at€a€facility€currently€performing€onlyÏsensory€monitoring€for€connectors,€initiating€instrumentalÏmonitoring€may€present€a€significant€disincentive€to€using€theÏCAR.€€Because€we€believe€that€the€more€facilities€that€use€theÏCAR,€the€more€burden€that€will€be€reduced€for€both€industry€andÏregulators,€we€have€provided€a€sensory€monitoring€option€forÏsources€subject€only€to€subparts€V€and€VV€to€eliminate€thisÏdisincentive€for€opting€into€the€CAR.€€No€degradation€ofÏenvironmental€protection€will€result€from€the€CAR€requiringÏsensory€monitoring€for€connectors€coming€into€the€CAR€fromÏsubpartsV€and€VV€because€that€is€what€those€two€referencingÏsubparts€require.€€The€final€CAR€has€been€modified€so€that€itÏcontains€two€connector€monitoring€programs.€€The€first€willÏconsist€of€sensory€monitoring€and€will€be€available€as€anÏalternative€to€connector€monitoring€for€equipment€referenced€toÏthe€CAR€from€subpartsV€and€VV.€€The€second€will€consist€of€theÏinstrument€monitoring€procedures€as€proposed;€this€program€willÏbe€applicable€to€equipment€coming€to€the€CAR€from€the€HON€andÏwill€be€available€to€equipment€coming€to€the€CAR€from€subpartsVÏand€VV.Ìà  àNote,€however,€that€when€sensory€monitoring€indicates€aÏpotential€leak€and€the€owner€or€operator€performs€instrumentÏmonitoring,€a€leak€definition€of€500ppm€is€used€for€consistencyÏwith€the€other€connector€monitoring€provisions€in€the€CAR.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€noted€that€althoughÐ T$¤6 ÐÔ_Ôðð65.104(a)(2)(ii)Ô_Ô€states€that€"inaccessible,€ceramic,€or€ceramic„¼lined€connectors...shall€be€observed€pursuant€to€65.108(e)(2),"Ïthere€is€no€actual€requirement€to€observe€connectors€inÏÔ_Ôðð65.108(e)(2).Ô_Ô€€The€commenter€also€noted€that€althoughÏÔ_Ôðð65.104(a)(2)(iv)Ô_Ô€requires€several€types€of€equipment€to€beÏobserved€pursuant€to€Ô_Ôðð65.110(b)(1),Ô_Ô€there€is€no€actualÏrequirement€to€observe€this€equipment€in€Ô_Ôðð65.110(b)(1).Ô_Ô€€TheÐ ˆ,Ø'D Ðcommenter€recommended€that€we€remove€Ô_Ôðððð65.104(a)(2)(ii)Ô_Ô€andÏ65.104(a)(2)(iv).Ìà  àòòResponseóó:€€We€concur€with€the€commenter€and€have€deletedÐ X ÐÔ_Ôðððð65.104(a)(2)(ii)Ô_Ô€and€(a)(2)(iv).€€We€clarify€thatÏÔ_Ôðððð65.108(e)(2)Ô_Ô€and€65.110(b)(1)€do€not€require€the€owner€orÏoperator€to€perform€regularly€scheduled€inspections€orÏobservations.€€They€do€require€that€action€be€taken,€however,€ifÏevidence€of€a€leak€is€observed.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€we€reviseÐ `  ÐÔ_Ôðð65.108(e)(1)Ô_Ô€to€make€unsafe„to„monitor€connectors€exempt€fromÏthe€connectors€compliance€schedule€in€Ô_Ôðð65.108(a)Ô_Ô€and€leakÏdetection€requirements€in€Ô_Ôðð65.108(b).Ô_Ô€€The€commenter€pointed€outÏthat€unsafe„to„monitor€connectors€should€not€be€included€in€theÏinitial€screening€required€by€Ô_Ôðð65.108(a)Ô_Ô€because€they€may€not€beÏsafe€to€monitor€at€any€time€during€the€first€12months.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€made€editsÐ D” Ðto€the€CAR€at€Ô_Ôðð65.108(e)Ô_Ô€to€specify€that€unsafe„to„monitorÏconnectors€are€neither€included€in€the€initial€screening€requiredÏby€Ô_Ôðð65.108(a)Ô_Ô€nor€in€the€leak€detection€provisions€of€Ô_Ôðð65.108(b).Ô_Ô€ÏThis€does€not€relieve€you€from€having€to€inspect€during€safe„to„¼monitor€periods.Ìà  àòòCommentóó:€€One€commenter€(IV-G„01)€recommended€thatÐ Lœ* Ðinaccessible€connectors€mentioned€in€Ô_Ôðð65.108(e)(2)(i)Ô_Ô€should€beÏexempt€from€the€leak€repair€requirements€in€paragraph(d)€becauseÏÔ_Ôðð65.108(e)(2)(ii)Ô_Ô€specifies€the€timing€for€repair€forÏinaccessible€connectors.Ìà  àòòResponseóó:€€We€clarify€that€ðð65.108(e)€does€not€referenceÐ (#x4 ÐÔ_Ôðð65.108(d)Ô_Ô€for€leak€repair.€€In€Ô_Ôðð65.108(e)(2)(ii),Ô_Ô€theÏrequirement€is€to€eliminate€the€"visual,€audible,€olfactory,€orÏother€indication€of€a€leak...as€soon€as€practical."€€The€standardÏleak€detection€procedures€in€Ô_Ôðð65.105Ô_Ô€do€not€apply€to€these€typesÏof€connectors€(inaccessible,€ceramic,€or€ceramic„lined),€so€noÏreference€is€provided€to€Ô_Ôðð65.108(d)Ô_Ô€because€Ô_Ôðð65.108(d)Ô_Ô€specifiesÏâ âthe€use€of€Ô_Ôðð65.105.Ô_Ô€€Also,€note€that€Ô_Ôðð65.108(d)Ô_Ô€explicitly€statesÐ \+¬&B Ðthat€Ô_Ôðð65.105Ô_Ô€is€to€be€used€only€for€leaks€"detected€pursuant€toÏparagraphs(a)€and€(b)."Ìâ âÔ  Ô3.5.11€€òòConnectors„„Other€CommentsóóÔ n€ÔÐ X Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€that€theÐ 4„ Ðdefinition€of€the€%CÔ0 à` °ÔLÔÐÿ` ° àÔ€term€in€the€percent€leaking€connectorsÏcalculation€in€Ô_Ôðð65.108(c)Ô_Ô€of€the€CAR€be€revised€to€clarify€thatÏconnectors€found€leaking€during€the€90day€follow„up€monitoringÏare€excluded€from€the€calculation.€€The€commenter€(IV-G-01)Ïpointed€out€that€including€connectors€found€leaking€during€theÏ90day€follow„up€monitoring€would€lead€to€double€counting€ofÏleaking€connectors.€€The€commenter€(IV-G-01)€recommended€revisingÏthe€definition€of€%CÔ0Ä ”ä ÔLÔÐÿ”ä Ä Ô€to€read,€"%CÔ0Ä ”ä ÔLÔÐÿ”ä Ä Ô€=€Percent€leaking€connectorsÏas€determined€through€monitoring€required€through€periodicÏmonitoring€required€in€paragraphs(a)€and€(b)(3)(i)€throughÏ(b)(3)(iii)."Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€includingÐ D” Ðconnectors€found€leaking€during€the€90day€follow„up€monitoringÏin€the€%CÔ0ÌœìÔLÔÐÿœìÌÔ€term€of€the€percent€leaking€connector€calculationÏwould€lead€to€double€counting€of€leaking€connectors.€€We€haveÏrevised€the€language€in€Ô_Ôðð65.108(c),Ô_Ô€as€suggested€by€theÏcommenter,€in€order€to€clarify€that€connectors€found€leakingÏduring€the€90day€follow„up€monitoring€are€not€included€in€theÏpercent€leaking€connector€calculation.Ìà  àÔ  ÔòòCommentóó:€€One€commenter€(VI-G-05)€suggested€that€we€includeÐ ¤ô. Ða€subgrouping€program€for€connectors.€€The€commenter€(VI-G-05)Ïstated€that€it€is€often€practical€for€monitoring€personnel€toÏmonitor€valves€and€their€associated€connectors€at€the€same€timeÏbecause€the€monitoring€route€followed€is€typically€ordered€byÏlocation€rather€than€by€equipment€type.€€The€commenter€(VI-G-05)Ïreasoned€that€it€would€make€sense€to€allow€similar€subgroupingÏprograms€for€both€valves€and€connectors.€€The€commenter€(VI-G-05)Ïalso€suggested€that€the€process€stream€contained€within€theÏequipment€plays€a€role€in€causing€leaks.€€The€commenter€(VI-G-05)Ïâ âreasoned€that€if€a€certain€area€or€subgroup€is€experiencing€highÐ \+¬&B Ðleak€rate€problems€for€valves,€it€is€likely€that€the€connectorsÏin€that€area€are€experiencing€similar€problems.€Ìâ âà  àAnother€commenter€(VI-D-03)€suggested€that€a€subgroupingÏprogram€for€connectors€in€the€CAR€was€not€justified.€€TheÏcommenter€(VI-D-03)€stated€that€the€increased€complexity€of€aÏconnector€subgrouping€program€for€owners,€operators,€and€agencyÏinspectors€is€not€justified€for€the€minimal€environmentalÏbenefit.€€The€commenter€(VI-D-03)€provided€several€reasons€forÏnot€creating€a€subgrouping€program€for€connectors.€€One€reasonÏthe€commenter€gave€was€that€the€leak€frequency€for€connectors€hasÏnot€been€shown€to€be€a€function€of€the€process,€fluid€temperatureÏor€operating€pressure.€€A€second€reason€the€commenter€gave€isÏthat€40CFRpart63,€subpartH€and€the€proposed€CAR€provide€forÏconnectors€in€gas/vapor€service€to€be€monitored€once€per€year€andÏallows€longer€monitoring€periods€for€process€units€with€connectorÏleak€rates€less€than€0.5€percent.€€A€third€reason€the€commenterÏgave€was€that€historical€industry€data€indicate€that,€in€general,Ïemissions€from€connectors€is€already€extremely€low€and€a€recentÏstudy€showed€insignificant€differences€in€connector€leakageÏemissions€at€facilities€with€and€without€leak€detection€andÏrepair€programs.Ìà  àòòResponseóó:€€We€do€not€believe€it€is€appropriate€to€add€aÐ Lœ* Ðsubgrouping€program€for€connectors,€given€the€added€complexity€ofÏsuch€a€program€for€minimal€environmental€benefit€or€burdenÏreduction.ÌÔ& X ÔÔ  Ô3.5.12€€òòMonitoring€Instrument€ProceduresóóÔ |ÔÐ ü!L2 Ðà  àòòÔ'Xü!pÔCommentóó:€€One€commenter€(IV-G-01)€recommended€that€water€beÐ (#x4 Ðgiven€as€an€example€of€an€inert€in€the€phrase€"For€processÏstreams€that€contain€nitrogen,€air,€or€other€inerts€that€are€notÏorganic€HAPs€or€VOC€.€.€."€found€in€Ô_Ôðð65.104(b)(2)Ô_Ô€andÏÔ_Ôðð65.143(c)(1)(ii).Ô_ÔÌà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€addedÐ )T$> Ð"water"€to€the€lists€of€example€inert€compounds€in€Ô_Ôðððð65.104(b)(2)Ô_ÔÏâ âand€Ô_Ôðð65.143(c)(1)(ii).Ô_ÔÐ \+¬&B Ðà  àòòCommentóó:€€One€commenter€(VI-D-03)€recognized€that€inÐ ° Ðâ âÔ_Ôðððð65.104(b)(2)Ô_Ô€and€65.143(c)(1)€of€the€CAR,€we€have€reduced€theÏburden€of€determining€an€instrument€response€factor€compared€toÏthe€requirements€of€subpartH€of€the€HON.€€The€commenterÏ(VI-D-03)€requested€that€we€clarify€what€is€required€and€how€toÏdemonstrate€that€the€requirements€of€Ô_Ôðððð65.143(c)(1)Ô_ÔÏand65.104(b)(2)€have€been€met.€€The€commenter€(VI-D-03)€notedÏthat€the€HON€requires€that€an€instrument€response€factor€be€basedÏon€the€mathematical€average€response€factor€for€a€given€processÏfluid.€€The€commenter€(VI-D-03)€also€noted€that€we€recognized€theÏdifficulty€in€calculating€individual€stream€response€factors,Ïparticularly€for€complex€streams€and€that€we€specified€in€the€CARÏthat€response€factors€could€be€based€on€a€representative€responseÏfactor.€€The€commenter€(VI-D-03)€agreed€with€the€simplificationÏbut€expressed€concern€that€the€proposed€language€regarding€theÏrequirements€and€demonstrations€of€compliance€were€unclear.€€TheÏcommenter€(VI-D-03)€provided€suggested€revisions€to€the€languageÏin€Ô_Ôðððð65.143(c)(1)(ii)Ô_Ô€and€65.104(b)(2)(i)€and€also€providedÏlanguage€for€an€additional€recordkeeping€requirement€to€be€addedÏto€Ô_Ôðððð65.119(b)Ô_Ô€and€65.163(a).Ìà  àòòResponseóó:€€We€have€adopted€some€of€the€changes€requested€byÐ  p( Ðthe€commenter€in€Ô_Ôðððð65.104(b)(2)Ô_Ô€and€65.143(c)(1),€and€we€haveÏadded€the€explicit€records€suggested€by€the€commenter€toÏÔ_Ôðððð65.119(b)Ô_Ô€and€65.163(a).€€Both€changes€help€clarify€the€rule€byÏspelling€out€exactly€what€the€procedures€are€and€what€recordsÏmust€be€kept€when€modifying€the€instrument€response€factor€underÏMethod21€in€cases€where€a€representative€composition€of€theÏprocess€fluid€is€used.Ìà  àòòCommentóó:€€Two€commenters€(VI-D-03€and€VI-D-02)€suggestedÐ €%Ð 8 Ðthat€we€revise€Ô_Ôðððð65.104(b)(4)Ô_Ô€and€65.143(c)(1)(v)€to€allow€gasesÏother€than€methane€to€be€used€as€a€Method€21€calibration€gas.€ÏBoth€commenters€expressed€concern€that€an€owner€or€operator€of€aÏsource€subject€to€subpartVV€and€using€hexane€as€a€calibrationÏgas€would€face€the€unnecessary€burden€of€switching€to€methane€inÏorder€to€opt€into€the€CAR.€€One€commenter€(VI-D-02)€suggestedÐ ˆ,Ø'D Ðthat€there€are€many€materials,€in€addition€to€methane€and€hexane,Ïthat€have€response€factors€in€the€proper€range€to€assure€goodÏmeasurements.€€The€commenter€(VI-D-02)€requested€that€we€allowÏnon-methane€calibration€gases,€particularly€hexane,€as€long€asÏthe€instrument€performance€criteria€are€met.€Ìà  àòòResponseóó:€€We€clarify€that€hexane€is€an€allowable€substituteÐ Œ Ü  Ðfor€methane€as€a€calibration€gas€in€cases€where€methane€cannot€beÏused€because€the€monitoring€instrument€does€not€respond€toÏmethane.€€This€allowance€is€spelled€out€at€Ô_Ôðð65.104(b)(4)(ii),Ô_Ô€"AÏcalibration€gas€other€than€methane€in€air€may€be€used€if€theÏinstrument€does€not€respond€to€methane..."€€This€approach€isÏconsistent€with€the€HON,€provides€for€a€single€consolidatedÏcalibration€procedure,€and€still€allows€n„hexane€to€be€used€inÏcases€where€methane€is€not€able€to€be€used.€€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that,€inÐ h ÐsubpartF€of€the€CAR,€we€revise€all€of€the€references€toÏmonitoring€methods.€€The€commenter€provided€a€list€of€paragraphsÏfrom€subpartF€of€the€CAR€that€require€the€owner€or€operator€toÏdetect€leaks€by€the€method€specified€in€Ô_Ôðððð65.104(b),Ô_Ô€(c),€andÏ(e).€€The€commenter€pointed€out€that€Ô_Ôðð65.104(b)Ô_Ô€contains€theÏmonitoring€method€information,€Ô_Ôðð65.104(c)Ô_Ô€contains€informationÏabout€adjusting€the€instrument€readings,€and€Ô_Ôðð65.104(e)Ô_Ô€is€aboutÏidentification€and€records€of€leaking€equipment.€€The€commenterÏrecommended€that€we€change€the€references€to€either€justÏÔ_Ôðððð65.104(b)Ô_Ô€and€(c),€or€to€just€Ô_Ôðð65.104(b).Ô_ÔÌà  àòòResponseóó:€€We€agree€that€referencing€Ô_Ôðð65.104(e)Ô_Ô€is€notÐ ü!L2 Ðnecessary,€so€long€as€Ô_Ôðð65.104(b)Ô_Ô€and€(c)€are€referenced.€€We€haveÏedited€the€language€in€subpartF€of€the€CAR€accordingly.ÌÔ  Ô3.5.13€€òòCompressorsóóÔ ”¤ÔÐ €%Ð 8 Ðà  àòòCommentóó:€€One€commenter€(VI-D-03)€expressed€concern€that€theÐ ¬&ü!: Ðlanguage€in€Ô_Ôðð65.112(f)Ô_Ô€of€the€CAR€differs€from€the€HON€in€theÏcriteria€for€designating€a€compressor€as€operating€with€"noÏdetectable€emission."€€The€commenter€explained€that€the€lastÏsentence€of€Ô_Ôðð65.112(f)Ô_Ô€is€not€in€the€HON€and€implies€that€if€aÏcompressor€has€ever€had€an€instrument€reading€above€500€parts€perÐ ˆ,Ø'D Ðmillion€(ppm),€then€it€cannot€be€designated€as€having€noÏdetectable€emissions.€€The€commenter€(VI-D-03)€recommended€thatÏthe€last€sentence€of€Ô_Ôðð65.112(f)Ô_Ô€be€removed.€€The€commenterÏcautioned€that€the€current€language€in€this€section€eliminatesÏany€incentive€for€an€owner€or€operator€to€upgrade€a€compressorÏseal€that€was€expected€to€have€no€detectable€emissions,€but€hasÏhad€a€problem.€€The€commenter€stated€that€an€upgraded€compressorÏseal€would€not€allow€the€owner€or€operator€to€redesignate€theÏcompressor€as€having€no€detectable€emissions€if€an€instrumentÏreading€above€500ppm€has€been€detected€at€any€time.€€TheÏcommenter€pointed€out€that€according€to€the€current€language€ofÏthe€HON,€an€instrument€reading€above€500ppm€for€a€compressorÏseal€designated€as€having€no€detectable€emissions€constitutes€aÏviolation€of€the€standard.€€The€commenter€(VI-D-03)€stated€thatÏthis€is€adequate€incentive€for€an€owner€or€operator€to€avoidÏdesignating€a€compressor€seal€as€having€no€detectable€emissionsÏif€the€seal€is€likely€to€have€a€problem.Ìà  àòòResponseóó:€€To€clarify€the€intent€of€the€provisions,€we€haveÐ œì" Ðrevised€Ô_Ôðð65.112(f)(1)Ô_Ô€by€removing€the€last€sentence.€€This€changeÏwas€suggested€by€the€commenter,€and€we€agree€that€the€language€isÏclearer€without€this€sentence.Ìà  àThe€proposed€language€implied€that€once€a€compressor€has€anÏinstrument€reading€greater€than€500ppm,€it€can€no€longer€qualifyÏfor€the€alternative€compressor€standard.€€This€was€not€ourÏintent.€€The€intent€of€the€CAR€is€that€if€an€instrument€readingÏof€greater€than€500ppm€is€observed,€the€standard€has€beenÏviolated.€€The€newly€revised€language€is€consistent€with€similarÏlanguage€in€the€HON€and€in€the€pressure€relief€device€standardsÏin€the€CAR.€ÌÔ‡*XlÿXXLXlÿÔÔ  Ô3.5.14€€òòSampling€Connection€SystemsóóÔ ®ÔÐ ¬&ü!: ÐÔ#†LXlÿXX*Xlÿû­#Ôà  àòòCommentóó:€€One€commenter€(IV-G-01)€pointed€out€thatÐ Ø'(#< ÐÔ_Ôðð65.113(c)Ô_Ô€of€the€CAR€requires€compliance€with€Ô_Ôðððð65.113(c)(1)Ô_ÔÏthrough€65.113(c)(5),€but€that€Ô_Ôðð65.113(c)(2),Ô_Ô€which€requires€theÏowner€or€operator€to€collect€and€recycle€purged€process€fluid€toÏa€process,€is€a€subset€of€Ô_Ôðð65.113(c)(1),Ô_Ô€which€requires€that€aÐ ˆ,Ø'D Ðclosed€purge,€closed€loop,€or€closed€vent€system€return€theÏpurged€process€fluid€directly€to€a€process€line€or€to€a€fuel€gasÏsystem.€€The€commenter€(IV-G-01)€recommended€that€Ô_Ôðð65.113(c)(2)Ô_ÔÏbe€deleted,€and€that€the€paragraphs€in€Ô_Ôðð65.113(c)Ô_Ô€be€renumberedÏaccordingly.€€The€commenter€(IV-G-01)€also€suggested€thatÏÔ_Ôðð65.113(c)(1)Ô_Ô€should€specify€that€if€the€purged€process€fluid€isÏreturned€to€a€fuel€gas€system€or€process,€it€should€meet€theÏrequirements€of€Ô_Ôðð65.115,Ô_Ô€which€specifies€the€standards€forÏemissions€routed€to€a€fuel€gas€system€or€process.€€The€commenterÏ(IV-G-01)€pointed€out€that€this€would€be€consistent€with€otherÏsections€in€subpartF€of€the€CAR€which€reference€Ô_Ôðð65.115Ô_Ô€whenÏallowing€the€owner€or€operator€to€route€emissions€to€a€fuel€gasÏsystem€or€back€to€the€process.Ìà  àThe€commenter€(IV-G-01)€then€suggested€that€language€inÏ40CFRpart63,€subpartH,€40€CFRpart61,€subpartV€andÏ40CFRpart60,€subpartVV€be€revised€to€be€consistent€with€theÏabove€comments€relating€to€sampling€connection€systems.ÌÓ$°,°ŒXÿÿ°œX$Óà  àòòResponseóó:€€We€maintain€that€Ô_Ôðð65.113(c)(2)Ô_Ô€is€not€a€subset€ofÐ œì" ÐÔ_Ôðð65.113(c)(1),Ô_Ô€and€therefore€did€not€remove€Ô_Ôðð65.113(c)(2).Ô_Ô€ÏSeparate€provisions€are€necessary€to€clarify€that€a€samplingÏconnection€system€may€consist€of€a€direct€connection€such€as€aÏclosed€purge,€closed€loop€or€closed€vent€system€as€described€inÏparagraph(c)(1).€€Alternatively,€a€sampling€connection€systemÏmay€consist€of€plant€personnel€using€a€bucket€or€drum€to€manuallyÏreturn€a€purged€sample€to€the€process€as€allowed€byÏparagraph(c)(2).€€Also€in€Ô_Ôðð65.113(c)(1),Ô_Ô€we€did€not€add€aÏreference€to€comply€with€the€closed€vent€system€and€controlÏdevice€requirements€of€Ô_Ôðð65.115Ô_Ô€because€we€determined€that€theÏassociated€compliance€and€recordkeeping€burden€was€not€necessaryÏfor€sampling€connections.€ÌÔ  Ô3.5.15€€òòEnclosed„Vented€Process€UnitsóóÔ 9¹ÔÐ Ø'(#< Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€theÐ )T$> Ðenclosed„vented€process€unit€provisions€in€Ô_Ôðð65.118Ô_Ô€of€the€CAR€beÏrevised€to€allow€for€either€a€process€unit€or€a€portion€of€aÏprocess€unit€to€be€designated€as€an€enclosed„vented€process.€€TheÐ ˆ,Ø'D Ðcommenter€(IV-G-01)€also€requested€that€enclosed„vented€processÏunits€be€given€the€option€to€be€routed€to€a€fuel€gas€system€or€toÏa€process.€€In€addition,€the€commenter€(IV-G-01)€suggested€thatÏenclosed„vented€process€units€should€not€be€exempt€from€theÏclosed€vent€system€requirements€of€Ô_Ôðð65.115Ô_Ô€of€the€CAR.Ìà  àòòResponseóó:€€We€note€that€the€enclosed„vented€process€unitÐ Œ Ü  Ðalternative€is€intended€for€process€units€entirely€containedÏwithin€large€buildings,€where€all€emissions€will€vent€through€aÏlimited€number€of€exhaust€ports.€€Many€of€these€process€units€areÏunmanned.€€Pharmaceutical€process€units€are€typical€examples€ofÏthis€type€of€operating€scenario.Ìà  àWe€maintain€that€it€is€inappropriate€to€allow€theÏenclosed-vented€alternative€for€portions€of€process€units.€€DoingÏso€creates€confusing€compliance€situations€and€stretches€theÏscope€of€the€allowance€beyond€what€was€originally€intended.Ìà  àWe€also€note€that€it€is€not€appropriate€to€allow€these€unitsÏto€vent€to€a€process€or€fuel€gas€system.€€Vents€coming€off€anÏenclosed„vented€process€unit€are€typically€very€dilute€withÏnegligible€heating€values.ÌÔ& X ÔÔ  Ô3.5.16€€òòBatch€Product„„ProcessesóóÔ ¥¿ÔÐ ôD& Ðà  àòòÔ'Xô™¿ÔCommentóó:€€One€commenter€(IV-G-01)€requested€that€we€clarifyÐ  p( Ðthe€requirements€of€Ô_Ôðð65.117(b)Ô_Ô€regarding€pressure€testing€andÏretesting€of€batch€product„processes.€€The€commenter€noted€thatÏÔ_Ôðð65.117(b)(4)(i)Ô_Ô€requires€a€batch€product„process€to€be€retestedÏif€a€leak€has€been€detected€and€that€Ô_Ôðð65.117(b)(4)(ii)Ô_Ô€statesÏthat€"if€a€batch€product„process€fails€the€retest€or€the€secondÏof€two€consecutive€pressure€tests,"€it€must€be€repaired€withinÏ30days€of€the€second€test.€€The€commenter€requestedÏclarification€on€whether€or€not€Ô_Ôðð65.117Ô_Ô€allows€for€twoÏconsecutive€pressure€tests,€whether€the€retest€is€considered€theÏsecond€consecutive€test,€and€whether€repair€is€required€withinÏ30days€of€the€retest€if€the€first€test€failed.Ìà  àòòResponseóó:€€The€intent€of€the€requirements€in€Ô_Ôðð65.117(b)Ô_Ô€isÐ 0*€%@ Ðas€follows.€€The€retest€is€the€second€of€two€consecutive€pressureÏtests.€€The€"or"€in€the€rule€has€been€replaced€by€parenthesis€toÐ ˆ,Ø'D Ðhelp€make€the€issue€clearer.€€The€rule€now€reads,€"...if€a€batchÏproduct„process€fails€the€retest€(the€second€of€two€consecutiveÏpressure€tests)..."Ìà  àThis€should€help€clarify€that€you€have€30days€after€failingÏthe€retest€to€repair€the€leak.€€This€is€the€same€as€specifyingÏ30days€after€failing€the€second€of€two€consecutive€pressureÏtests.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€asked€if€a€pressure€testÐ ä 4 Ðfor€a€batch€process€must€continue€indefinitely€if€no€pressureÏloss€or€gain€equal€to€a€rate€of€1pound€per€square€inch€gaugeÏ(psig)€per€hour€is€seen€when€using€a€pressure€measurement€deviceÏof€ðð10percent.€€The€commenter€(IV-G-01)€noted€that,€according€toÏÔ_Ôðð65.117(b)(5)(iv),Ô_Ô€if€a€more€accurate€measurement€device€is€notÏavailable,€and€an€owner€or€operator€elects€to€use€a€pressureÏmeasurement€device€with€a€precision€of€at€least€10percent,€thenÏthe€duration€for€the€test€must€extend€for€the€time€necessary€toÏdetect€a€pressure€loss€or€rise€that€equals€a€rate€of€1psig€perÏhour.€€The€commenter€questioned€if€the€test€is€required€toÏcontinue€indefinitely€if€a€pressure€loss€or€rise€does€not€equalÏ1psig€per€hour.Ìà  àòòResponseóó:€€To€clarify€how€long€the€test€must€be€extended,Ð  p( Ðconsider€the€following€example.€€A€process€operating€at€200psigÏis€tested,€and€you€elect€to€use€a€pressure€measurement€deviceÏwith€a€precision€of€20€psig€(ðð10€percent€of€the€test€pressure).€ÏSuch€a€device€would€not€be€able€to€detect€a€pressure€drop€ofÏ1psig/hour€in€1hour€because€it€could€only€detect€a€change€ofÏðð20psig.€€The€test€must€be€extended€to€20hours.€€AfterÏ20hours,€if€the€process€is€losing€pressure€at€a€rate€greaterÏthan€1€psig/hour,€then€the€instrument€will€be€able€to€detect€theÏchange€because€the€change€would€be€greater€than€the€precision€ofÏthe€device€(ðð20psig).ÌÔ  Ô3.5.17€€òòPeriodic€Report€ContentsóóÔ ÌÔÐ )T$> Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€theÐ 0*€%@ Ðrequirement€to€report€nonrepairable€components€as€part€of€theÏperiodic€reporting€requirements€of€Ô_Ôðð65.120(b)(1)Ô_Ô€of€the€CAR€beÐ ˆ,Ø'D Ðremoved.€€This€paragraph€requires€the€owner€or€operator€toÏ"include€the€number€of€leaking€components€that€were€not€repairedÏas€required€by€Ô_Ôðð65.105(a),Ô_Ô€and€for€valves€and€connectors€identifyÏthe€number€of€components€that€are€determined€by€Ô_Ôðð65.106(c)(3)Ô_Ô€toÏbe€nonrepairable."€€The€commenter€(IV-G-01)€pointed€out€that€thisÏrequirement€is€redundant€with€the€requirement€in€Ô_Ôðð65.120(b)(2)Ô_Ô€toÏreport€occurrences€of€delay€of€repair.€€The€commenter€(IV-G-01)Ïalso€pointed€out€that€Ô_Ôðð65.106(c)(3)Ô_Ô€is€referenced€in€the€valveÏsection,€but€there€is€no€parallel€reference€for€nonrepairableÏconnectors€in€the€connector€section.€€The€commenter€(IV-G-01)Ïrequested€clarification€on€reporting€the€number€of€leakingÏcomponents€that€were€not€repaired€as€required€by€Ô_Ôðð65.105(a)Ô_Ô€ofÏthe€CAR.€€The€commenter€(IV-G-01)€asked€if€the€intent€was€for€theÏowner€or€operator€to€report€the€number€of€components€which€missedÏeither€the€5day€first€attempt€and/or€the€15day€final€repair€forÏreasons€other€than€delay€of€repair.€Ìà  àòòResponseóó:€€With€regard€to€the€apparent€redundancy€inÐ pÀ  Ðperiodic€reporting€requirements,€Ô_Ôðð65.120(b)(1)Ô_Ô€requires€reportingÏof€the€number€of€leaking€components€that€were€not€repaired.€€ThisÏnumber€refers€to€the€components€not€repaired€within€the€15dayÏtime€period.€€It€does€not€include€the€number€of€components€thatÏare€not€repaired€pursuant€to€the€requirement€to€perform€a€firstÏattempt€at€repair€within€5days.Ìà  àIn€addition,€this€number€may€not€be€the€same€number€as€theÏinstances€of€delay€of€repair,€which€is€required€to€be€reportedÏunder€Ô_Ôðð65.120(b)(2).Ô_Ô€€For€example,€one€component€may€leakÏmultiple€times€during€a€reporting€period.€€This€may€necessitateÏmore€than€one€instance€of€delay€of€repair,€but€the€number€ofÏcomponents€that€leaked€is€still€one.Ìà  àWith€regard€to€reporting€the€number€of€nonrepairableÏconnectors,€we€recognize€that€the€CAR€does€not€provide€forÏdesignating€connectors€as€nonrepairable.€€To€correct€thisÏoversight,€we€edited€Ô_Ôðð65.120(b)(1)Ô_Ô€so€that€the€section€does€notÏrefer€to€connectors.ÌÔ_ÔÔ  Ô3.5.18€€òòAlternatives€and€ExemptionsóóÔ »ÖÔÐ ˆ,Ø'D Ðà  àòòCommentóó:€€One€commenter€(IV-G„01)€suggested€edits€toÐ ° Ððð65.103(c)(3)€so€that€it€is€clear€that€the€planned€schedule€forÏmonitoring€required€by€the€paragraph€includes€an€explanation€ofÏwhy€the€equipment€is€unsafe„to„monitor€or€difficult„to„monitor.€ÏThe€commenter€pointed€out€that€the€proposed€language€onlyÏaddresses€explanations€of€why€the€equipment€is€difficult„to„¼monitor.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€revisedÐ ä 4 Ððð65.103(c)(3)€to€require€explanation€not€only€for€difficult„to„¼monitor€equipment€but€also€for€unsafe„to„monitor€equipment.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€whenever€aÐ h¸  Ðreference€is€made€to€routing€emissions€to€a€process€or€fuel€gasÏsystem€or€routing€emissions€to€a€closed€vent€system€and€controlÏdevice€meeting€the€requirements€of€ðð65.115,€we€should€alsoÏprovide€an€alternative€reference€to€ðð65.102(b)€(request€forÏalternative€means€of€emission€limitation).€€The€commenter€notedÏthat€ðððð65.111(d)€and€65.118(a)€both€refer€to€a€control€deviceÏmeeting€the€requirements€of€either€ðð65.115€or€ðð65.102(b).€€TheÏcommenter€suggested€that€we€use€ðððð65.111(d)€and€65.118(a)€asÏexamples€for€how€other€sections€should€be€revised.Ìà  àòòResponseóó:€€The€original€text€was€not€clear,€as€it€explicitlyÐ  p( Ðreferenced€alternative€means€of€emission€limitation€in€only€twoÏplaces.€€We€have€clarified€the€rule€by€removing€the€references€toÏðð65.102(b)€from€ðððð65.111(d)€and€65.118(a).€€The€intent€of€the€CARÏis€to€provide€for€alternative€means€of€emission€limitation€forÏall€control€devices.€€Also,€just€referencing€ðð65.115€for€controlÏdevice€requirements€is€sufficient,€because€ðð65.115(b)€referencesÏñøñððñøññøñððñøñ65.102(b)€where€applicable.ÌÔ& X ÔÔ  Ô3.5.19€€òòOther€Equipment€Leak€CommentsóóÔ mÞÔÐ €%Ð 8 Ðà  àÔ'X€%aÞÔòòCommentóó:€€One€commenter€(IV-G„01)€suggested€that€theÐ ¬&ü!: Ðlanguage€in€ñùñððñùññùñððñùñ65.103(b)(5)€regarding€the€requirement€to€identifyÏ"instrumentation€systems€subject€to€the€provisions€of€thisÏsubpart"€would€be€clearer€if€it€referenced€ñúñððñúññúñððñúñ65.110€(theÏâ âinstrumentation€system€standards)€instead€of€"this€Ô_Ôsubpart."Ð \+¬&B Ðà  àòòResponseóó:€€While€the€instrumentation€systems€standard€isÐ ° Ðâ âcontained€within€Ô_Ôñúñððñúññúñððñúñ65.110,Ô_Ô€many€other€sections€of€subpartF€of€theÏCAR€are€also€potentially€applicable.€€For€example,€instrumentÏmonitoring€provisions€of€Ô_Ôñúñððñúññúñððñúñ65.104,Ô_Ô€and€alternative€means€ofÏemission€limitation€requested€under€Ô_Ôñúñððñúññúñððñúñ65.102(b)Ô_Ô€are€all€sectionsÏwithin€subpartF€of€the€CAR€that€may€apply€to€instrumentationÏsystems.€€The€intent€of€Ô_Ôñúñððñúññúñððñúñ65.103(b)(5)Ô_Ô€is€to€identify€allÏinstrumentation€systems€subject€to€subpartF€of€the€CAR€("thisÏsubpart")€and€not€just€those€complying€with€Ô_Ôñúñððñúññúñððñúñ65.110.Ô_ÔÌà  àòòCommentóó:€€One€commenter€(VI-G-05)€suggested€that€we€includeÐ <Œ  Ðlanguage€in€the€CAR€to€clarify€that€a€performance€test€is€notÏrequired€for€control€devices€used€only€to€control€emissions€fromÏequipment€leaks.€€The€commenter€(VI-G-05)€recommended€that,€asideÏfrom€annual€visual€inspection,€the€only€requirement€for€suchÏcontrol€devices€should€be€"operation€of€the€control€device€at€allÏtimes€when€emissions€are€vented€to€them."€€The€commenterÏ(VI-G-05)€suggested€that€startup,€shutdown,€and€malfunction€planÏrequirements€would€be€unnecessarily€burdensome€for€these€minorÏcontrol€devices€which€are€infrequently€used.Ìà  àòòResponseóó:€€In€Ô_Ôñúñððñúññúñððñúñ65.146Ô_Ô€(nonflare€control€devices€used€forÐ ôD& Ðequipment€leaks€only),€paragraph(b)€specifically€states€that,€"AÏperformance€test€is€not€required€for€any€control€device€used€onlyÏto€control€emissions€from€equipment€leaks."€€Regarding€SSM€planÏrequirements,€we€maintain€that€the€SSM€plan€applies€to€allÏ"equipment€equipped€with€a€closed€vent€system€and€control€deviceÏsubject€to€subpartG"€of€the€CAR€(see€Ô_Ôñúñððñúññúñððñúñ65.6).Ô_Ô€€Excepting€certainÏcontrol€equipment€from€the€SSM€plan€would€not€only€createÏconfusion€but€also€potentially€result€in€increased€emissions.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€we€includeÐ €%Ð 8 Ðvisual€inspection€records€for€agitators€in€Ô_Ôñúñððñúññúñððñúñ65.119(c)(4).Ô_Ô€€TheÏcommenter€reasoned€that€if€weekly€inspection€for€pumps€must€beÏdocumented,€then€weekly€inspection€for€agitators€should€beÏdocumented€as€well.Ìà  àòòResponseóó:€€We€agree€that€it€is€reasonable€and€consistent€toÐ \+¬&B Ðrequire€documentation€of€the€weekly€inspection€for€agitators.€€Ð ˆ,Ø'D ÐWe€added€this€record€to€Ô_Ôððñúñððñúññúñððñúñ65.109Ô_Ô€and€65.119.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€suggested€that€the€currentÐ Ü, Ðrequirements€for€open€ended€lines€are€unrealistic€and€that€weÏshould€consider€a€work€practice€approach€for€handling€emissionsÏfrom€open€ended€lines€and€open€ended€valves.€€The€commenter€notedÏthat€the€current€requirement€states€that€open€ended€lines€andÏvalves€must€either€be€equipped€with€a€second€valve€or€be€pluggedÏor€capped€when€not€in€use.€€The€commenter€pointed€out€that€at€aÏlarge€facility,€it€is€virtually€impossible€to€achieve€100percentÏcompliance€with€this€requirement€because€of€various€operationalÏand€maintenance€situations.€€The€commenter€suggested€that€weÏconsider€a€work€practice€that€would€confirm€the€status€or€correctÏthe€status€of€a€cap€or€plug€each€time€an€open€valve€is€monitoredÏunder€the€valve€monitoring€provisions,€without€creating€aÏviolation.€€The€commenter€suggested€that€the€CAR€would€be€a€goodÏopportunity€to€introduce€such€a€program,€and€said€their€companyÏwould€welcome€the€opportunity€to€work€with€EPA€to€develop€a€lowÏburden€work€practice€system€for€open€ended€lines€and€valves.Ìà  àòòResponseóó:€€We€did€not€include€a€work€practice€approach€forÐ È$ Ðhandling€emissions€from€open€ended€valves€and€lines.€ÏIncorporating€such€a€standard€would€have€required€additionalÏstudy€and€analysis.€€Performing€this€analysis€was€not€within€theÏscope€of€the€CAR,€so€we€did€not€incorporate€the€work€practiceÏapproach€suggested€by€the€commenter.ÌÌÔ  Ô3.6à  àCLOSED€VENT€SYSTEMS€AND€CONTROL€DEVICESÔ ÁñÔÐ ü!L2 ÐÔ  Ô3.6.1€€òòPerformance€TestsÔ *òÔóóÐ (#x4 Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€asserted€that€performanceÐ T$¤6 Ðtests€should€not€be€required€if€a€source€has€previously€conductedÏone€for€any€referencing€subpart,€even€if€the€methods€orÏconditions€during€the€test€were€different€than€those€specified€inÏthe€CAR.€€The€commenter€(IV-G-01)€reasoned€that€the€CAR'sÏrequirement€to€conduct€a€performance€test€would€be€anÏunaffordable€burden€to€any€company€bringing€a€significant€numberÏof€sources€and€control€devices€under€the€CAR€and€would€likelyÐ ˆ,Ø'D Ðkeep€companies€from€opting€to€use€the€CAR.€€The€commenterÏ(IV-G-01)€contends€that€the€requirement€to€conduct€a€newÏperformance€test€would€not€create€any€new€environmental€benefit.Ìà  àòòResponseóó:€€The€CAR€does€not€impose€a€new€burden€by€requiringÐ 4„ Ðnew€performance€tests€when€test€conditions€have€changed.€€ThisÏrequirement€already€exists€in€the€referencing€subparts.€ÏPerformance€tests€are€only€needed€if€a€source€has€previouslyÏconducted€one€under€a€referencing€subpart€but€the€conditions€wereÏdifferent€than€those€specified€in€the€CAR.€€Re„testing€isÏrequired€even€by€the€referencing€subparts€when€a€process€changeÏhas€occurred.€€This€is€appropriate€because€a€process€change€couldÏchange€the€conditions€such€that€the€control€device€no€longerÏmeets€the€rule€requirements.€€The€CAR€allows€an€option€for€theÏfacility€to€demonstrate€that€the€performance€test€demonstratesÏcompliance€despite€the€process€change€[see€Ô_Ôñúñððñúññúñððñúñ65.157(b)(1)Ô_Ô€of€theÏCAR].€€Ìà  àWe€stress€that,€with€very€few€exceptions,€the€referencingÏsubparts€use€the€same€test€methods€as€the€CAR€for€theirÏperformance€tests.€€We€therefore€contend€that€there€will€be€veryÏfew,€if€any,€instances€where€initial€performance€tests€will€needÏto€be€repeated,€if€they€have€been€previously€conducted€under€theÏrequirements€of€a€referencing€subpart.€€The€only€differences€inÏtest€methods€where€new€performance€tests€may€be€required€betweenÏthe€CAR€and€the€referencing€subparts€are:€€subpartBB€requiresÏMethod€25A€or€25B€while€the€CAR€requires€Methods€18€or€25A€forÏconcentration€of€regulated€material;€subpartDDD€requires€MethodÏ3€while€the€CAR€requires€Method€3B€for€oxygen€concentration.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€requested€clarification€ofÐ T$¤6 Ðthe€CAR€preamble€language€requiring€the€preservation€of€pastÏcompliance€obligations.€€Specifically,€the€commenter€(VI-D-03)Ïcited€the€proposal€preamble€at€63FR57761:€€"In€addition,€ownersÏand€operators€who€choose€to€comply€with€the€CAR€are€stillÏobligated€to€fulfill€requirements€that€applied€while€they€wereÏcomplying€with€a€referencing€subpart.€€For€example,€if€a€facilityÏis€required€by€a€referencing€subpart€to€complete€a€performanceÐ ˆ,Ø'D Ðtest,€opting€to€comply€with€the€CAR€does€not€remove€theÏrequirement€to€conduct€a€performance€test€or€protect€the€sourceÏfrom€enforcement€actions€for€not€completing€the€test."€€TheÏcommenter€stated€that€the€last€sentence€of€that€paragraph€impliesÏthat€the€CAR€performance€test€requirements€are€overridden€byÏreferencing€subpart€requirements,€even€after€a€source€has€comeÏunder€the€CAR.Ìà  àòòResponseóó:€€A€source€is€obligated€to€fulfill€the€requirementsÐ ä 4 Ðof€the€original€referencing€subpart.€€The€CAR€does€not,€forÏexample,€require€performance€tests€where€performance€tests€haveÏpreviously€been€conducted€and€no€process€changes€have€been€made.€ÏBut€if€a€referencing€subpart€requires€a€performance€test€and€theÏsource€has€not€yet€completed€the€test,€this€obligation€remains.€ÏThe€source€cannot€opt€into€the€CAR€and€avoid€the€requirement.Ìà  àThis€is€similar€to€the€"there€shall€be€no€gaps€inÏcompliance"€language€of€Ô_Ôñúñððñúññúñððñúñ65.1(f)(2).Ô_Ô€€Compliance€with€periodicÏreporting€and€all€of€the€other€requirements€under€the€referencingÏsubparts€must€continue€while€the€source€is€implementing€the€CAR.€ÏThen,€on€the€implementation€date€[see€Ô_Ôñúñððñúññúñððñúñ65.1(f)(1)]Ô_Ô€the€CARÏrequirements€are€followed€in€place€of€the€specified€requirementsÏof€the€referencing€subparts.ÌÔ& X ÔÔ  Ô3.6.2€€òòControl€RequirementsóóÔ ÔÐ Lœ* Ðà  àÔ'XLÔòòCommentóó:€€One€commenter€(IV-G-01)€requested€that€we€allowÐ xÈ, Ðroutine€maintenance€of€control€and€recovery€devices€withoutÏrequiring€a€facility€to€shut€down€its€process,€as€long€as€theÏfacility€could€demonstrate€that€the€process€could€not€be€shutÏdown.€€The€commenter€(IV-G-01)€cited€that€this€type€of€option€hasÏbeen€available€to€some€facilities€subject€to€MACT€standards,Ïlisted€the€HON€storage€vessel€provisions€as€an€example,€andÏsuggested€that€this€option€could€be€made€available€only€for€aÏlimited€number€of€hours€per€year.€€The€commenter€(IV-G-01)Ïmaintained€that€it€is€often€safer€and€more€environmentallyÏbeneficial€to€perform€maintenance€on€control€and€recovery€devicesÏwithout€shutting€down€the€entire€process,€because€many€continuousÏprocesses€can€require€days€to€start€up€and€shut€down.€€TheÐ ˆ,Ø'D Ðcommenter€(IV-G-01)€indicated€that€the€current€provisions€createÏan€atmosphere€among€owners€and€operators€that€they€must€installÏ"redundant"€emission€control€equipment€at€"considerable€expense"Ïin€order€to€minimize€excess€emissions.€€The€commenter€(IV-G-01)Ïprovided€three€examples€of€situations€in€which€it€was€claimedÏthat€the€emissions€from€a€shutdown€and€subsequent€startup€of€theÏprocess€would€be€greater€than€if€the€control€devices€had€beenÏserviced€while€the€processing€continued.Ìà  àAnother€commenter€(VI-D-03)€requested€that€the€allowance€ofÏ240hours€per€year€for€planned€routine€maintenance€be€extended€toÏcontrol€devices€that€control€process€vents,€transfer€operations,Ïand€equipment€leak€emissions.€€The€commenter€stated€that€it€is€aÏcommon€industry€practice€to€combine€vent€streams€for€an€emissionÏcontrol€device.€€The€commenter€asserted€that€allowing€plannedÏroutine€maintenance€for€all€control€devices€on€emission€sourcesÏwould€increase€the€incentive€to€use€the€CAR.€€The€commenterÏcontended€that€this€request€is€appropriate€because€the€same€typesÏof€control€devices€are€presently€used€to€control€emission€fromÏprocess€vents,€transfer€operations,€and€equipment€leak€systemsÏand€are€being€operated€and€maintained€in€the€same€manner.€€TheÏcommenter€stated€that€allowing€planned€maintenance€of€theseÏsystems€will€reduce€malfunctions€and€thus€provide€environmentalÏbenefit.€€The€commenter€(VI-D-03)€provided€suggested€edits€to€theÏCAR€for€this€provision.Ìà  àòòResponseóó:€€We€do€not€find€the€industry€examples€compellingÐ Ð 0 Ðand€point€out€that€two€of€the€examples€should€be€consideredÏmalfunctions€in€the€source's€startup,€shutdown,€and€malfunctionÏplan€rather€than€routine€maintenance.Ìà  àThe€commenter's€(IV-G-01)€request€is€addressed€through€theÏprovisions€for€startup,€shutdown€and€malfunction€in€Ô_Ôñúñððñúññúñððñúñ65.6Ô_Ô€of€theÏCAR.€€In€the€commenter's€(IV-G-01)€first€example,€a€compressorÏthat€normally€collects€vent€streams,€compresses€them,€and€thenÏreturns€them€to€the€process€sustains€mechanical€problems.€€ThisÏâ âis€not€an€example€of€routine€maintenance,€but€rather€an€exampleÐ \+¬&B ÐÔ_Ôof€malfunctioning€process€equipment€and€the€situation€should€beÏaddressed€through€the€SSM€plan€as€specified€in€ñúñððñúññúñððñúñ65.6€of€the€CAR.Ìâ âà  àThe€commenter's€(IV-G-01)€second€example€is€not€an€exampleÏof€routine€maintenance€either.€€The€commenter€refers€to€aÏsituation€where€a€carbon€bed€is€due€for€replacement€and€that€thisÏreplacement€would€normally€occur€during€a€planned€process€unitÏshutdown.€€Due€to€abnormal€fouling€or€plugging€the€replacementÏcannot€occur€during€a€planned€shutdown.€€Such€an€event€wouldÏqualify€as€malfunction,€not€as€routine€maintenance.€€As€with€theÏcommenter's€first€example,€this€situation€should€be€handledÏthrough€the€startup,€shutdown,€and€malfunction€provisions€ofÏñúñððñúññúñððñúñ65.6€of€the€CAR.Ìà  àFor€the€commenter's€(IV-G-01)€third€example,€we€remindÏowners€and€operators€that€when€they€determine€a€control€strategyÏfor€complying€with€regulations,€they€need€to€consider€issues€ofÏroutine€maintenance€of€control€and€recovery€devices.€€If€an€ownerÏor€operator€chooses€to€route€several€processes€to€a€singleÏcontrol€or€recovery€device,€this€would€obviously€necessitateÏshutting€down€all€the€processes€routed€to€that€device€in€order€toÏperform€maintenance€on€the€device.€€This€is€a€choice€that€theÏowner€or€operator€makes.€€The€owner€or€operator€just€as€easilyÏcould€choose€to€route€those€processes€through€more€than€oneÏcontrol€or€recovery€device.€€In€fact,€owners€or€operators€couldÏchoose,€in€the€example€provided€by€the€commenter€(IV-G-01),€toÏroute€emissions€to€a€backup€recovery€device€or€control€device,Ïsuch€as€a€flare,€rather€than€vent€uncontrolled€emissions€fromÏseveral€processes€to€the€atmosphere€while€maintenance€isÏperformed€on€the€primary€control€or€recovery€device.€€The€ownerÏor€operator€has€flexibility€in€the€choice€of€how€to€design€theÏemissions€control€system,€and€that€flexibility€precludesÏuncontrolled€emissions€during€situations€of€routine€maintenance.Ìà  àWith€regard€to€the€HON€storage€vessel€provisions€thatÏcontain€this€provision,€we€point€out€that€when€an€owner€orÏoperator€has€a€malfunction€in€a€control€device€for€a€storageÏvessel,€it€is€not€possible€to€simply€"shut€down"€the€storageÐ ˆ,Ø'D Ðvessel,€that€is,€one€cannot€always€put€the€stored€liquidÏsomewhere€else.€€Also,€more€emissions€would€result€from€emptyingÏand€degassing€the€storage€vessel€then€would€occur€from€allowingÏthe€emissions€to€bypass€the€control€device€for€up€to€240hoursÏper€year.€€Therefore,€there€had€to€be€some€provision€for€shuttingÏdown€control€devices€for€storage€vessels€to€allow€for€theirÏmaintenance€and€repair.€€We€do€not€believe€that€it€is€appropriateÏto€provide€this€allowance€for€process€vents.à È àÐ ä 4 Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€that€weÐ `  Ðincorporate€changes€in€ñúñððñúññúñððñúñ65.147€of€the€CAR€that€were€recentlyÏpromulgated€in€amendments€to€40€CFR€parts€60€and€63€[see€ððñúñððñúññúñððñúñ60.18Ïand€63.11(b)]€regarding€the€operation€of€flares€that€burnÏhydrogen€as€fuel€or€that€could€be€modified€to€burn€hydrogen€asÏfuel.Ìà  àòòResponseóó:€€We€concur€that€the€requested€changes€would€beÐ h Ðbeneficial€and€have€incorporated€the€changes€into€ñúñððñúññúñððñúñ65.147€of€theÏCAR.ÌÔ‡*XlÿXXLXlÿÔà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€revising€the€CARÐ œì" Ðat€ñúñððñúññúñððñúñ65.144(a),€which€currently€states€"except€as€provided€inÏ65.3(b)(1)€of€subpartA...."€€The€commenter€(IV-G-01)€suggestedÏthat€the€paragraph€should€be€revised€to€state€"except€duringÏperiods€of€startup,€shutdown,€and€malfunction...."€€This€wouldÏmake€the€paragraph€consistent€with€the€CAR€at€ñúñððñúññúñððñúñ65.145(a).Ìà  àòòResponseóó:€€We€have€revised€the€final€rule€at€ððñúñððñúññúñððñúñ65.144(a)€andÐ ¤ô. Ð65.145(a)€to€state€"...except€during€periods€of€startup,Ïshutdown,€and€malfunction€as€specified€in€ñúñððñúññúñððñúñ65.3(a)...."€€We€agreeÏthat€the€two€paragraphs€should€be€consistent.€€However,€theÏreference€to€the€appropriate€general€provisions€paragraph€wasÏalso€needed€so€that€the€details€of€compliance€during€startup,Ïshutdown,€and€malfunction€were€clear.Ô#†LXlÿXX*Xlÿ¢#ÔÐ ¬&ü!: Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€claimed€that€draftingÐ Ø'(#< Ðerrors€in€ñúñððñúññúñððñúñ65.155€(other€control€devices)€should€be€corrected€soÏas€to€make€ñúñððñúññúñððñúñ65.155€applicable€to€ñúñððñúññúñððñúñ65.145€(storage€vessels€andÏâ âlow„throughput€transfer€racks)€and€to€ñúñððñúññúñððñúñ65.146€(equipment€leaks).Ð \+¬&B Ðà  àòòResponseóó:€€We€contend€that€the€citations€are€correct€asÐ ° Ðâ âproposed,€noting€that€ñúñððñúññúñððñúñ65.155€provides€for€"other"€controlÏdevices€on€process€vents€and€high„throughput€transfer€racks€only.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€clarification€toÐ 4„ Ðthe€proposal€preamble€(63€FR€57781)€on€which€referencing€subpartsÏlack€specific€halogen€vent€stream€requirements.Ìà  àòòResponseóó:€€The€only€referencing€subpart€with€halogen€ventÐ ¸   Ðstream€requirements€is€the€HON.€€No€other€referencing€subpart€hadÏspecific€halogen€vent€stream€requirements.€€However,€the€halogenÏvent€stream€requirements€of€the€CAR€do€not€pertain€to€equipmentÏleaks€or€storage€vessels.€€Therefore,€the€CAR€halogen€vent€streamÏrequirements€have€been€extended€to€sources€subject€to€40CFRÏpart60,€subpartIII,€NNN,€RRR€and€40CFR€part61,€subpartBB.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€thatÐ ì< Ðñúñððñúññúñððñúñ65.144(b)(2)€should€apply€to€equipment€leaks€routed€to€aÏprocess,€and€that€leaving€"equipment€leaks"€out€of€the€firstÏsentence€was€a€drafting€error.€Ìà  àòòResponseóó:€€We€clarify€that€while€ñúñððñúññúñððñúñ65.144€pertains€in€generalÐ œì" Ðto€fuel€gas€systems€and€processes€to€which€storage€vessel,Ïtransfer€rack,€or€equipment€leak€regulated€material€emissions€areÏrouted,€not€all€paragraphs€of€ñúñððñúññúñððñúñ65.144€apply€to€all€types€ofÏemission€points.€€In€particular,€ñúñððñúññúñððñúñ65.144(b)(2)€was€not€intendedÏto€apply€to€equipment€leak€emissions€routed€to€fuel€gas€systemsÏor€processes.€€That€is€why€ñúñððñúññúñððñúñ65.144(b)(2)€explicitly€states,€"ForÏstorage€vessels€and€transfer€racks...."ÌÔ  Ô3.6.3€€òòMonitoring,€Recordkeeping,€and€ReportingÔ  )ÔóóÐ ü!L2 Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€clarification€ofÐ (#x4 Ðthe€monitoring€requirements€for€a€halogen€scrubber€system€whereÏthe€first€scrubber€is€the€acid€scrubber€and€the€second€is€theÏcaustic€scrubber.€€The€commenter€(IV-G-01)€points€out€thatÏpersonnel€who€are€expert€with€scrubbers€indicate€that€pH€shouldÏbe€measured€on€the€first€(acid)€scrubber€and€the€liquid„to„gasÏ(L/G)€ratio€should€be€measured€on€the€final€(caustic)€scrubber.Ìà  àòòResponseóó:€€We€have€not€added€specific€monitoring€parameterÐ \+¬&B Ðinstructions€for€monitoring€a€halogen€scrubber€system€becauseÐ ˆ,Ø'D Ðthese€systems€can€vary€in€design.€€Specific€parameter€monitoringÏrequirements€may€not€fit€all€cases.€€However,€monitoringÏprocedures€for€scrubber€systems€(or€any€alternative€monitoring)Ïcan€be€approved€under€the€CAR€provisions€in€ñúñððñúññúñððñúñ65.7(b).€€If€anÏowner€or€operator€feels€that€pH€should€be€measured€on€the€acidÏ(first)€scrubber€and€the€L/G€on€the€final€(caustic)€scrubber,€itÏis€possible€to€have€such€a€monitoring€plan€approved€under€theÏalternative€monitoring€provisions.Ìà  àòòCommentóó:€€One€commenter€(VI-D-01)€expressed€that€the€CARÐ `  Ðeffectively€consolidates€the€monitoring,€recordkeeping,€andÏreporting€requirements€of€the€applicable€rules.€€The€commenterÏ(VI-D-01)€recommends€enhancing€this€concept€by€establishing€oneÏstringent€requirement€for€all€applicable€reporting€frequencies,Ïone€date€for€periodic€reporting,€and€the€same€retentionÏrequirements€for€all€records.€€Another€commenter€(VI-G-03)€statedÏthat€there€is€benefit€to€stating€specific€dates€for€reportsÏrather€than€gearing€report€dates€to€other€unspecified€dates.Ìà  àòòResponseóó:€€We€note€that€ñúñððñúññúñððñúñ65.5(h)€provides€for€establishing€aÐ œì" Ðcommon€schedule€for€all€reporting€frequencies€at€a€facility.€€WeÏmaintain,€however,€that€it€is€beneficial€and€not€undulyÏburdensome€to€allow€owners€or€operators€to€adjust€the€reportingÏdates.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€removing€theÐ xÈ, Ðreference€to€continuous€emissions€monitoring€systems€(CEMS)€fromÏthe€proposal€preamble€(63€FR€57760)€because€it€incorrectly€statesÏthat€"...no€CEMS...provisions€are€included€in€the€CAR€since€theyÏare€not€applicable,...."€€The€commenter€noted€that€CEMS€is€one€ofÏthe€monitoring€provisions€under€the€HON€and€the€CAR.Ìà  àòòResponseóó:€€We€would€like€to€clarify€what€was€meant€in€theÐ €%Ð 8 Ðpreamble.€€The€commenter€is€correct€that,€in€certain€situations,Ïa€continuous€organic€concentration€monitoring€device€is€anÏalternative€to€parameter€monitoring€for€recovery€devices.€ÏHowever,€the€general€provisions€regarding€CEMS€are€not€applicableÏâ âto€these€devices.€€Therefore,€the€proposal€preamble€specifiedÐ \+¬&B Ðthat€"...no€CEMS...òòprovisionsóó€are€included...since€they€are€notÐ ° Ðapplicable."Ìâ âà  àòòCommentóó:€€One€commenter€(VI-G-03)€suggested€that€all€CARÐ X Ðmonitoring,€recordkeeping,€and€reporting€should€use€uniformÏstandards€and€procedures€that€are€reflected€in€the€relevantÏtitleV€permit.€€The€commenter€(VI-G-03)€gave€an€example:€€costÏsavings€can€be€achieved€if€the€frequency€and€timing€ofÏmonitoring,€recordkeeping,€and€reporting€for€all€CAR€units€isÏconsistent.€€The€commenter€(VI-G-03)€stated€that€there€is€also€aÏbenefit€to€making€these€requirements€consistent€with€the€mostÏrecent€rulemaking€approaches,€such€as€the€HON.€€The€commenterÏ(VI-G-03)€suggested€that€future€regulatory€amendments€to€part65Ïshould€agree€with€these€more€uniform€requirements,€rather€thanÏcreate€new,€duplicative€requirements.€€The€commenter€(VI-G-01)Ïalso€suggested€that€the€amount€of€required€monitoring,Ïrecordkeeping,€and€reporting€should€be€weighed€against€theÏbenefit€to€the€environment.€€The€commenter€(VI-G-03)€gave€anÏexample:€€for€some€equipment,€there€may€be€no€net€benefit€toÏequipment€leak€monitoring€semi-annually€versus€monitoringÏannually.Ìà  àòòResponseóó:€€The€commenter€did€not€specify€what€they€believeÐ  p( Ðis€inconsistent€between€the€CAR€and€titleV€records€and€reports.€ÏWe€believe€the€CAR€is€consistent€with€titleV.€€With€respect€toÏequipment€leak€monitoring,€the€CAR€retains€the€"good€performance"Ïrewards€of€the€HON€by€allowing€longer€periods€between€monitoring.€ÏIndeed,€the€CAR€has€taken€this€a€step€further€by€allowing€evenÏlonger€periods€than€the€HON€for€even€better€performance.Ìà  àòòCommentóó:€€One€commenter€(IV-G„01)€pointed€out€an€apparentÐ T$¤6 Ðcontradiction€in€the€proposal€preamble€at€63FR57782€in€theÏparagraph€beginning€with€"The€CAR€adopts€the€requirements€ofÏ40CFR€parts61€and€63..."€€The€commenter€asked€how€the€immediateÏrepair€or€replacement€of€CPMS€parts€requirements€are€not€in€theÏGeneral€Provisions€of€Part60,€but€these€requirements€are€spelledÏâ âout€in€sections40CFR60.11(d),€and€60.13(e)€and(f).Ð \+¬&B Ðà  àòòResponseóó:€€In€the€proposal€preamble,€we€made€the€point€thatÐ ° Ðâ âthis€provision€is€not€explicitly€in€the€40CFR€part60€generalÏprovisions,€but€it€is€implicit€in€the€part60€general€provisions,Ïat€ððñúñððñúññúñððñúñ60.11(d)€and€60.13(e)€and€(f).€€These€provisions€spell€outÏgood€control€practices.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€a€restructuringÐ Œ Ü  Ðof€the€proposal€preamble€discussion€at€63FR57782€for€theÏparagraph€beginning€with€"The€CAR€provisions€are€different€fromÏthe€non„HON€referencing€subparts..."€€The€commenter€stated€thatÏthe€rest€of€this€paragraph€about€3-hour€averages€seems€to€be€aÏdifferent€topic€and€the€first€sentence€seems€to€go€with€the€nextÏparagraph€about€the€CAR€allowing€the€use€of€ranges€from€theÏnon-HON€referencing€subparts€instead€if€site„specific€ranges.€ÏThe€commenter€(IV-G-01)€expressed€confusion€regarding€theÏdiscussion€in€these€paragraphs.Ìà  àòòResponseóó:€€The€discussion€in€the€paragraph€cited€by€theÐ D” Ðcommenter€was€meant€to€be€compared€with€the€information€in€theÏprevious€paragraph.€€The€previous€paragraph€describes€theÏprovisions€of€the€CAR€and€the€paragraph€cited€by€the€commenterÏdescribes€the€provisions€of€the€referencing€subparts.€€By€readingÏboth€paragraphs,€the€differences€between€the€two€are€apparent.Ìà  àIn€order€to€clarify€the€differences,€we€will€describe€themÏhere.€€The€CAR€and€HON€require€daily€averages€and€theÏ40CFRparts€60€and€61€(non„HON)€referencing€subparts€requireÏ3-hour€averages.€€The€non„HON€referencing€subparts€provide€theÏparameter€range€that€will€be€used;€the€CAR€and€HON€allowÏsite-specific€ranges€to€be€developed.€€Under€the€CAR€and€HON,€ifÏthe€daily€average€is€outside€the€range,€it€is€a€violation€of€theÏoperating€conditions€(after€the€one€excused€excursion).€€TheÏAdministrator€may€then€require€a€performance€test€to€determine€ifÏthere€is€a€violation€of€the€standard,€but€may€also€use€anyÏcredible€evidence€to€determine€noncompliance.€€Under€the€non„HONÏreferencing€subparts,€if€the€3-hour€averages€are€outside€theÏrange,€there€is€no€violation€of€the€operating€conditions,€but€theÏAdministrator€can€require€a€performance€test€to€determine€if€aÐ ˆ,Ø'D Ðviolation€of€the€standard€has€occurred€(again,€the€AdministratorÏmay€also€use€any€credible€evidence€to€determine€a€violation).Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€stated€that€the€proposalÐ X Ðpreamble€(63FR57784),€is€not€accurate€in€saying€that€40CFRÏparts60€and€63€general€provision€for€flare€requirements€requireÏhourly€records€of€pilot€flame€monitoring€results.€€The€commenterÏgave€the€following€reasons€for€this€contention:€ÌÓ€Óà0  à1.à0` (#(#àThere€is€no€mention€of€hourly€recordkeeping€for€pilotÐ ä 4 Ðflame€monitoring€in€the€flare€requirements€of€ððñúñððñúññúñððñúñ60.18Ïor€63.11;Ð ` (#` (# ÐÌà0  à2.à0` (#(#àThe€only€use€of€the€term€"hourly"€in€the€part60Ð T  Ðgeneral€provisions€is€in€ñúñððñúññúñððñúñ60.14(h)€through€(j)€whereÏ"maximum€hourly€emissions"€are€referred€to;€andÐ ` (#` (# ÐÌà0  à3.à0` (#(#àThe€only€use€of€the€term€"hourly"€in€the€part63Ð $t Ðgeneral€provisions€is€in€ñúñððñúññúñððñúñ63.8(g)(2)€where€"validÏhourly€average"€is€referred€to.Ð ` (#` (# ÐÓ€ÓÌÓ€€Óà  àòòResponseóó:€€The€commenter€is€correct€that€the€generalÐ à0 Ðprovisions€of€parts60€and€63€do€not€explicitly€state€that€hourlyÏrecords€of€pilot€flame€monitoring€results€are€required.€€However,Ïboth€general€provisions€require€that€monitoring€be€carried€out€toÏensure€that€the€flares€are€operated€and€maintained€properly.€€ItÏis€implicit€in€these€provisions€that€records€of€the€monitoringÏresults€are€required.€€The€CAR€and€the€HON€explicitly€requireÏhourly€records€indicating€whether€there€has€been€outage€of€allÏpilot€flames€any€time€during€the€hour.€€This€is€a€burdenÏreduction€for€40€CFR€part60,€subpartDDD,€RRR,€and€NNN€sourcesÏwhere€continuous€records€are€required.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€claimed€that€upon€sensoryÐ Ä"0 Ðindications€of€a€leak€occurring€during€closed€vent€system€annualÏinspections€performed€pursuant€to€ñúñððñúññúñððñúñ65.143(d)(1),€the€languageÏshould€require€"elimination€of€the€leak"€and€not€"elimination€ofÏthe€indications€of€a€leak."Ìà  àòòResponseóó:€€We€clarify€that€a€"leak"€is€not€detected€untilÐ  (ð#: Ðconfirmed€through€instrument€monitoring.€€If,€at€the€time€of€theÏannual€visual€inspections,€there€are€indications€of€potentialÏleaks€(visible,€audible,€or€olfactory),€then€the€owner€Ô_ÔorÐ $,t'@ Ðoperator€has€a€choice€as€to€what€action€to€take,€but€a€"leak"€hasÏnot€yet€been€detected.€€One€option€is€to€eliminate€theÏindications€of€the€leak.€€The€other€option€is€to€instrumentÏmonitor€the€closed€vent€system.€€If€the€monitor€indicates€thatÏthere€is€a€leak,€then€the€presence€of€a€leak€is€confirmed€and€theÏleak€must€be€repaired.Ìà  àòòCommentóó€€One€commenter€(IV-G-01)€questioned€why€closed€ventÐ ¸   Ðsystem€leak€detection€instruments€should€be€calibrated€atÏ10,000ppm,€which€seems€to€be€required€by€Ô_Ôñúñððñúññúñððñúñ65.143(c)(1)(v).Ô_Ô€€TheÏcommenter€pointed€out€that€the€requirement€should€be€to€calibrateÏat€500ppm€(the€leak€definition€for€closed€vent€systems)€or€at€aÏconcentration€that€does€not€exceed€the€leak€definition€by€moreÏthan€2000ppm.€€The€commenter€also€questioned€the€need€forÏÔ_Ôñúñððñúññúñððñúñ65.143(c)(1)(v)(C).Ô_ÔÌà  àòòResponseóó:€€We€clarify€that€Ô_Ôñúñððñúññúñððñúñ65.153(c)(1)(v)(B)Ô_Ô€requires€theÐ h Ðcalibration€gas€to€be€less€than€10,000ppm.€€Sources€opting€intoÏthe€CAR€from€40CFR€part61,€subpartV,€will€likely€haveÏcalibration€procedures€in€place€based€on€10,000ppm.€By€requiringÏthe€calibration€gas€to€be€less€than€10,000ppm,€the€CAR€does€notÏimpose€additional€burden€on€these€sources,€yet€it€is€flexibleÏenough€to€accommodate€the€other€subparts.Ìà  àWe€maintain€that€Ô_Ôñúñððñúññúñððñúñ65.143(c)(1)(v)(C)Ô_Ô€is€necessary,€as€thisÏparagraph€provides€for€devices€with€multiple€calibration€scales.€ÏNote€that€Ô_Ôñúñððñúññúñððñúñ65.143(c)(1)(v)(C)Ô_Ô€specifies€a€maximum€concentrationÏof€2,500ppm€for€the€lower€scaleððs€calibration€gas;€this€is€theÏleak€definition€for€closed€vent€systems€(500ppm)€plus€2,000ppm.ÌÐ  (#x4 ÐØWØÓ  ÓÑ€AÑÌÌÌÌÔ  Ô4.0€IMPLEMENTATION€AND€TITLE€V€Ô ½XÔÌÌÌÓžXÓÔ  Ô4.1€€IMPLEMENTATIONà  àÔ  YÔÐ ä 4 Ðà  àòòCommentóó:€€Two€commenters€(VI-D-01€and€VI-D-06)€support€ourÐ `  Ðproposal€to€recognize€the€CAR€as€an€alternative€complianceÏapproach€to€the€individual€subparts€being€consolidated.€€OneÏcommenter€(VI-D-01)€pointed€out€that€this€will€allow€States€thatÏprovide€for€alternatives€in€the€implementation€of€theÏconsolidated€rules€to€implement€the€CAR€upon€promulgation.Ìà  àòòResponseóó:€€We€thank€the€commenters€for€supporting€the€CAR€asÐ h Ðan€alternative€compliance€approach.Ìà  àòòCommentóó:€€Four€commenters€(IV-D-01,€VI-D-03,€VI-D-06,Ð pÀ  ÐVI-G-03)€support€our€proposal€to€waive€formal€delegation€of€theÏCAR€where€States€already€have€delegated€authority€to€implementÏthe€underlying€NSPS€and€NESHAP.€€One€commenter€(VI-G-03)€notedÏthat€States€need€to€continue€to€include€the€regulated€communityÏas€an€active€participant€in€the€process€of€"tailoring"€theÏFederal€rule€to€the€States'€needs;€States€need€to€provide€theÏregulated€community€with€due€process,€appropriate€standards,€andÏopportunity€for€appeals.€€One€commenter€(VI-D-03)€stated€that€theÏimplementation€approaches€outlined€in€the€preamble€remove€anÏobstacle€to€CAR€implementation€and€foster€further€consolidationÏwith€State€rules.€€The€commenter€(VI-D-03)€suggested€that€weÏconsider€using€direct€final€rules€to€expedite€non„controversialÏchanges€in€State€implementation€plans.€Ìà  àòòResponseóó:€€We€thank€the€commenters€for€supporting€theÐ Ø'(#< Ðapproaches€outlined€in€the€proposal€preamble€and€will€considerÏusing€direct€final€rules€in€the€future,€when€appropriate.€€Ìà  àòòCommentóó:€€Ô‡*XlÿXXLXlÿÔOne€commenter€(VI„D-6)€also€supports€an€approachÐ \+¬&B Ðthat€would€provide€for€implementation€of€the€CAR€in€States€withÐ ˆ,Ø'D Ðan€approved€titleV€program,€regardless€of€whether€the€State€hasÏreceived€formal€delegation€of€the€underlying€rules.Ô#†LXlÿXX*XlÿÜ_#ÔÐ Ü, Ðà  àòòResponseóó:€€At€proposal,€we€stated€that€delegation€of€the€CARÐ X Ðcould€occur€if€the€State€has€delegation€for€all€the€referencingÏsubparts.€€However,€we€agree€with€the€commenter€that€delegationÏof€the€CAR€could€also€occur€when€States€have€an€approved€title€VÏprogram.€€We€recognize€that€fewer€States€have€accepted€delegationÏof€the€part€63€rules€than€the€parts€60€and€61€rules.€€ByÏincorporating€the€part€63€rules€into€the€title€V€permit€asÏapplicable€requirements,€the€terms€and€conditions€of€the€part€63Ïrules€become€enforceable€by€the€permitting€authority€through€theÏpermit,€as€if€the€part€63€rules€themselves€were€delegated.€€WeÏagree€that€the€CAR€could€be€delegated€to€permitting€authoritiesÏwith€approved€title€V€programs€in€place,€however€there€areÏadvantages€to€obtaining€formal€delegation€of€the€CAR€by€theÏpermitting€authority.€€Delegation€should€be€conditioned€to€ensureÏthe€CAR€is€substantively€incorporated€unchanged€into€the€permit.Ìà  àAs€stated€above,€there€are€advantages€to€accepting€formalÏdelegation€of€the€CAR.€€Permitting€authorities€that€accept€formalÏdelegation€of€the€CAR€through€delegation€of€the€referencingÏsubparts,€i.e.,€the€HON€(or€accept€formal€delegation€of€anyÏsection€112€requirement),€are€the€clear€enforcement€authority.€ÏIn€other€words,€if€the€permitting€authority€does€not€acceptÏformal€delegation€of€the€referencing€subparts,€then€the€EPAÏRegional€Office€remains€the€enforcement€authority€and€sourcesÏmust€submit€duplicate€reports€to€both€the€EPA€Regional€Office€andÏthe€permitting€authority.€€Additionally,€if€the€permittingÏauthority€accepts€formal€delegation€of€the€referencing€subpartsÏthen€the€permitting€authority€can€make€the€discretionaryÏdecisions€regarding€the€general€provisions€authorities.€€ForÏexample,€if€a€source€wants€to€change€some€facet€of€its€monitoringÏprogram,€then,€in€some€cases,€a€permitting€authority€that€hasÏaccepted€delegation€of€the€CAR€can€approve€this€change.€€See€theÏ40€CFR€part€63,€subpart€E€preamble€dated€January€12,€1999€(64€FRÏ1879)€for€more€information.Ð ˆ,Ø'D ÐÔ_Ôà  àòòCommentóó:€€Four€commenters€(VI-D„01,€VI-D-03,€VI-D-06,Ð ° ÐVI-G-03)€agreed€that€we€should€pre„approve€the€CAR€for€reasonablyÏavailable€control€technology€(RACT)€equivalency€for€monitoring,Ïrecordkeeping,€and€reporting.€€Two€commenters€(VI-D-01,€VI-D„06)Ïagreed€with€our€decision€to€allow€States€to€amend€SIP„based€andÏother€Federally„based€rules€so€that€they€point€to€the€CAR€as€aÏcompliance€alternative.€€One€commenter€(VI-D-01)€noted€that€thisÏcould€help€prevent€some€SCUs€from€being€subject€to€a€separate€setÏof€state€regulations,€thereby€subverting€the€CAR's€purpose.€€TheÏcommenter€(VI-D-01)€stated€that€it€is€unnecessary€to€propose€aÏstreamlined€process€for€approval€of€SIP€submittals€thatÏincorporate€the€CAR,€if€the€State€agency€has€delegation€forÏimplementation€of€the€subject€regulations€and€has€been€delegatedÏthe€CAR.€€The€commenter€(VI-D-01)€indicated€that€the€consolidatedÏrules€in€the€CAR€should€cover€any€RACT€or€air€quality€standardsÏconsiderations€and€that€other€alternatives€can€be€approvedÏthrough€section€112(l)€of€the€Act.€€One€commenter€(VI-D-06)€alsoÏsupports€our€approach€which€recognizes€that€the€permittingÏauthority€is€logically€the€best€entity€to€determine€whether€theÏCAR€is€an€appropriate€alternative€to€the€SIP.Ìà  àòòResponseóó:€€We€thank€the€commenters€for€their€support€andÐ  p( Ðappreciate€the€feedback€regarding€RACT€interaction.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€asserts€that€sourcesÐ xÈ, Ðsubject€to€State€air€regulations€will€still€have€to€comply€withÏState€rules,€at€least€for€some€amount€of€time.€€The€commenterÏ(IV-G-01)€supports€that€the€proposed€CAR€includes€an€acceleratedÏmethod€of€incorporating€the€CAR€so€that€it€supersedes€the€StateÏrules€in€the€hierarchy€of€rule€applicability.€€The€commenterÏ(IV-G-01)€cautions€that€a€State€may€also€opt€not€to€incorporateÏthe€CAR,€particularly€in€States€that€have€more€stringentÏrequirements€than€the€CAR.€€One€commenter€(VI-D-01)€supported€theÏCAR€as€a€voluntary€option€for€the€States.Ìà  àòòResponseóó:€€It€is€not€clear€whether€the€commenter€isÐ 0*€%@ Ðreferring€to€State€regulations,€or€to€Federal€regulations€thatÏare€implemented€by€the€State€and€therefore€have€been€incorporatedÐ ˆ,Ø'D Ðinto€the€State€regulations.€€If€the€commenter€is€referring€toÏState€regulations,€facilities€will€continue€to€be€subject€toÏState€regulations€regardless€of€complying€with€the€CAR.€€SomeÏStates€have€developed€additional€regulations€that€apply€to€SOCMIÏemission€points€that€apply€under€State€law.€€Some€of€theseÏregulations€are€more€stringent€than€the€Federal€regulations€uponÏwhich€the€CAR€is€based.€€The€CAR€does€not€affect€these€rules.Ìà  àIf€the€commenter€is€referring€to€Federal€regulationsÏimplemented€by€the€States,€some€States€can€exercise€the€CAR€as€anÏalternative€compliance€approach€to€expedite€the€implementation€ofÏthe€CAR,€as€described€in€the€proposal€preamble€at€63FR57785.€ÏHere,€the€only€delay€in€implementing€the€CAR€should€be€the€timeÏnecessary€to€agree€on€the€schedule€for€the€source€to€come€intoÏcompliance€with€the€CAR.€€If€the€State€cannot€immediately€allowÏuse€of€the€CAR€as€an€alternative€compliance€option€because€ofÏprocedural€or€legislative€hurdles,€there€may€be€a€delay€in€theÏimplementation€of€the€CAR€at€that€State€while€the€necessaryÏchanges€are€made€and€ratified€in€the€State's€regulations.€€TheÏStates€also€have€the€option€to€consolidate€the€CAR€requirementsÏwith€the€SIP€requirements.Ìà  àThe€commenter€is€correct€in€noting€that€a€State€can€decideÏnot€to€allow€the€CAR€as€a€compliance€alternative.€€We€have€madeÏthe€CAR€optional€for€industry€at€each€State's€discretion€byÏrequiring€that€the€implementation€schedule€be€established€byÏmutual€agreement.€€Whatever€the€State€decides,€the€more€stringentÏState€rules€will€still€apply.€€A€more€stringent€State€equipmentÏleak€program,€for€example,€would€not€be€affected€byÏimplementation€of€the€CAR.€€State€rules€still€apply€even€when€theÏCAR€is€implemented,€unless€the€State€removes€the€obligation.ÌÌÔ& X ÔÔ  Ô4.2à  àTITLE€VÔ ŠyÔÐ Ø'(#< Ðà  àÔ'XØ'~yÔòòCommentóó:€€Two€commenters€(VI-D-01,€VI-D-06)€support€ourÐ )T$> Ðapproach€with€regard€to€incorporating€the€CAR€into€titleVÏpermits.€€One€commenter€(VI-D-01)€stated€that€a€facility'sÏtitleV€permit€is€the€final€consolidation€document€for€theÐ ˆ,Ø'D Ðmonitoring,€recordkeeping,€and€reporting€required€by€allÏapplicable€rules.€€The€commenter€(VI-D-01)€stated€that€the€titleÏV€permit€also€provides€a€checklist€for€determining€compliance€andÏpursuing€enforcement.Ìà  àòòResponseóó:€€We€thank€the€commenters€for€this€support.€€Ð ` ° Ðà  àòòCommentóó:€€Two€commenters€(VI„D-01,€VI-D-06)€pointed€out€thatÐ Œ Ü  Ðsome€permitting€authorities€will€find€that€the€part70€permitÏrenewal€is€the€most€reasonable€time€to€implement€the€CAR.€€OneÏcommenter€(VI-D-01)€asserted€that€this€would€allow€time€for€theÏfinal€issuance€of€the€first€phase€of€title€V€permits€and€wouldÏprovide€guidance€for€consolidation€in€the€second€phase€of€title€VÏpermit€issuance.€€The€commenter€(IV-D-01)€also€indicated€thatÏthis€would€reduce€burden€to€States€and€sources.€€The€commenterÏ(IV-D-01)€stated€that€title€V€permits€that€have€already€beenÏissued€would€not€have€to€be€re„opened,€so€attention€can€continueÏto€be€focused€on€first„round€issuance.Ìà  àTwo€commenters€(VI-D-01,€VI-D-06)€asked€that€we€give€noticeÏthat€implementing€agencies€can€use€the€title€V€renewal€period€asÏan€appropriate€implementation€timing€for€the€CAR.€€The€commenterÏ(VI-D-01)€notes€that€because€the€CAR€is€not€mandatory,€it€is€notÏnecessary€to€reopen€a€permit.€€The€commenter€(VI-D-01)€pointedÏout€that€States€can€apply€the€CAR€under€titleV€at€renewal€ratherÏthan€either€re-opening€a€previously€issued€permit€before€renewalÏor€delaying€approval€of€an€initial€permit.Ìà  àòòResponseóó:€€We€have€no€objections€with€the€approachesÐ Ð 0 Ðoutlined€by€the€commenter€for€dealing€with€titleV€and€CARÏinteraction€at€renewal€time.€€We€recognize€that€the€States€haveÏthe€authority€to€decide€how€and€when€to€allow€sources€to€modifyÏtheir€permits€and€begin€compliance€with€CAR,€and€would€use€theÏtiming€as€a€means€to€better€manage€permitting€resources.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-01)€indicated€that,€if€theÐ Ø'(#< Ðcircumstances€change€and€the€CAR€were€to€become€mandatory,€theÏcommenter€would€support€our€position€outlined€in€sectionVIII€ofÏthe€preamble€to€the€proposed€rule.€€Under€this€position,€theÏcommenter€contended,€incorporation€of€the€CAR€into€issued€title€VÐ ˆ,Ø'D Ðpermits€would€be€allowed€under€a€"notice„only"€provision€thatÏwould€not€require€EPA€and€public€review.€€The€commenter€statedÏthat€this€would€be€applicable€only€if€the€permit€is€incorporatingÏpreviously„adopted€requirements€and€if€source„specificÏrequirements€are€not€being€established€through€the€permit.€€Ìà  àòòResponseóó:€€The€CAR€has€been€finalized€as€an€optional€rule.Ð Œ Ü  Ðà  àòòCommentóó:€€One€commenter€(VI-D-06)€supports€our€position€thatÐ ¸   Ðincorporation€of€the€CAR€should€not€require€EPA€and€public€reviewÏunder€a€revised€part70.€€One€commenter€(VI-D-06)€agrees€with€ourÏdistinction€between€the€types€of€changes€that€trigger€aÏsignificant€permit€revision€and€those€that€will€qualify€for€aÏminor€revision.€€The€commenter€concludes,€as€we€proposed,€thatÏadopting€the€CAR€into€a€titleV€permit€is€a€minor€revision.€€TheÏcommenter€(VI-D-06)€stated€that€a€"notice€only"€approach€may€beÏappropriate€if€such€an€approach€is€provided€for€in€the€part70Ïrules.Ìà  àòòResponseóó:€€We€thank€the€commenter€for€the€support€on€thisÐ pÀ  Ðissue.€€We€do€note,€however,€that€interaction€with€the€State€is€aÏcrucial€step€in€CAR€implementation.€€Some€States€will€haveÏdifferent€timing€requirements€for€CAR€transition€and€permitÏmodification,€so€working€with€your€State€is€very€important.Ð   p( ÐØØÑ€BAÑÓ€ÓÌÌÌÌÌÌà@ÌÌìàÔ  Ô5.0€€CHANGES€TO€THE€EQUIPMENT€LEAKS€REFERENCING€SUBPARTSÔ Ÿ‰ÔˆÌÌÌÓ€ÓÔ  Ô5.1à  àCLARIFICATION€OF€INTENTÔ  ŠÔÐ ¸   Ðà  àòòCommentóó:€€Two€commenters€(IV-G-01,€VI-D-03)€agreed€with€theÐ ä 4  Ðdefinitions€in€the€CAR€for€a€closed€vent€system€and€for€a€controlÏdevice.€The€commenters€suggested€revisions€to€language€in€theÏreferencing€subparts€in€order€to€be€consistent€with€the€CAR.€€TheÏcommenters€(IV-G-01,€VI-D-03)€recommended€revisions€toÏdefinitions€of€closed€vent€systems€and€control€device€in€ñúñððñúññúñððñúñ63.161Ïof€40€CFR€part63€subpartH,€ñúñððñúññúñððñúñ61.241€of€40€CFR€part61,ÏsubpartV,€and€ñúñððñúññúñððñúñ60.481€of€40CFRpart63€subpartVV.€€TheÏdefinitions€in€these€referencing€subparts,€according€to€theÏcommenter€(VI-D-03),€contradict€the€definition€of€a€closed€ventÏsystem€in€the€CAR.€€Three€commenters€(IV-G-01,€VI-D-03,€VI-D-04)Ïrecommended€that€process€piping€that€routes€vapors€to€a€processÏor€fuel€gas€system€should€not€be€considered€a€closed€vent€systemÏin€any€rule.€€The€commenter€(VI„D-04)€suggested€that€this€changeÏwould€clarify€that€hard„piping,€ductwork,€and€connections€areÏ"process"€components€and€not€part€of€a€closed€vent€system.€€OneÏcommenter€(IV-G-01)€also€agreed€with€the€definition€of€a€controlÏdevice€and€its€exclusion€of€a€fuel€gas€system€as€a€type€ofÏcontrol€device.€Ìà  àThe€commenter€(VI-D-03)€also€suggested€revisions€to€otherÏsections€of€the€referencing€subparts€in€order€to€maintainÏconsistency€with€the€closed€vent€system€definition€in€the€CAR€andÏto€clarify€that€piping€routed€to€the€process€or€to€a€fuel€gasÏsystem€in€not€part€of€a€closed€vent€system.€€The€commenterÏrecommended€changes€to€language€in€ððñúñððñúññúñððñúñ63.163(g),€63.164(h),Ï63.170,€and€63.173(f)€of€the€HON€which€refer€to€routing€vapors€toÏa€control€device€from€pumps,€compressors,€surge€control€vessels,Ïand€agitators,€respectively.€€The€commenter€recommended€changesÐ ˆ,Ø'A Ðto€several€paragraphs€in€ñúñððñúññúñððñúñ60.482€of€subpartVV.€€To€be€consistentÏwith€the€suggested€definitions€of€closed€vent€systems€and€controlÏdevices,€the€commenter€also€recommended€changes€to€severalÏparagraphs€in€ñúñððñúññúñððñúñ61.242€of€subpartV.Ìà  àOne€commenter€(IV-G-01)€notes€that€under€the€CARÏñúñððñúññúñððñúñ65.143(b)(2)€and€(b)(3),€parts€of€a€closed€vent€system€that€areÏunsafe„to„inspect€or€difficult„to„inspect€are€exempt€from€allÏmonitoring€and€inspections€requirements€as€long€as€certainÏconditions€are€met.€€The€commenter€(IV-G-01)€claimed€thatÏpart60,€subpartVV,€the€HON€subpartH,€and€part61,€subpartVÏshould€be€changed€to€be€consistent€with€the€CAR€on€this€issue.Ìà  àOne€commenter€(VI-D-04)€suggested€that€we€revise€theÏproposed€language€in€ñúñððñúññúñððñúñ61.242„4(d)(2)€of€40CFR€part60,€subpartVÏto€allow€pressure€relief€devices€to€be€isolated€from€processÏservice€after€a€pressure€release.€€The€commenter€recommendedÏrevising€the€language€to€accommodate€a€specific€rupture€diskÏdesign€arrangement.Ìà  àOne€commenter€(IV-G-01)€requested€a€revision€of€theÏdefinition€of€"connector"€in€40€CFR€part61,€subpartV€andÏpart60,€subpartVV€to€match€the€definition€in€40CFR€part63,ÏsubpartH.€€The€commenter€pointed€to€the€reasoning€in€the€CARÏpreamble€at€63€FR€57764€to€support€this€request.Ìà  àòòResponseóó:€€With€respect€to€revising€the€referencingÐ xÈ, Ðsubparts,€the€intent€of€the€CAR€is€to€add€references€that€allowÏan€owner€or€operator€to€choose€to€comply€with€the€CAR€and€to€makeÏminor€clarifications€to€the€referencing€subparts€whereÏappropriate€for€drafting€errors,€typographical€mistakes,€andÏinternal€inconsistencies.€€It€is€not€the€intent€of€the€CAR€toÏmake€revisions€to€the€original€language€or€intent€of€theÏreferencing€subparts€to€match€the€CAR€improvements.€€However,€WeÏhave€made€revisions€to€the€equipment€leak€referencing€subpartsÏwhere€these€revisions€conform€to€the€safety€provisions€containedÏwithin€the€HON€and€the€CAR.€€We€have€not€generally€revisedÏâ âreferencing€subparts€to€conform€to€new€language€in€the€CAR,Ð \+¬&B Ðalthough€there€are€some€exceptions€in€which€revisions€to€theÏreferencing€subparts€were€a€practical€solution.Ìâ âà  àIn€part,€the€reason€for€not€making€significant€revisions€toÏthe€referencing€subparts€is€that€such€changes€could€haveÏunintended€implications€or€consequences€for€owners€or€operatorsÏwho€choose€to€continue€to€comply€with€a€referencing€subpart.€€TheÏCAR€could€then€be€disrupting€existing€interpretation€orÏimplementation€of€the€referencing€subparts.€€Therefore,€we€didÏnot€generally€make€substantive€revisions€to€the€referencingÏsubparts€as€suggested€by€the€commenter,€and€specifically€we€didÏnot€make€the€changes€suggested€by€the€commenters€in€this€comment.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€pointed€out€that€the€delayÐ ”ä  Ðof€repair€provisions€of€40€CFR€part63,€subpartH,Ï40CFRpart61,subpartV,€and€40CFRpart60,€subpartVV€createÏa€disincentive€for€an€owner€or€operator€to€attempt€a€repairÏbetween€the€15thday€after€detection€and€the€next€process€unitÏshutdown.€€The€commenter€(IV-G-01)€suggested€that€similarÏrevisions€in€language€to€the€delay€of€repair€provisions€found€inÏthe€CAR€at€ñúñððñúññúñððñúñ65.105(d)€should€also€be€made€in€ñúñððñúññúñððñúñ63.171(a)€of€theÏHON,€ñúñððñúññúñððñúñ61.242„10(a)€of€subpartV,€and€ñúñððñúññúñððñúñ60.482„9(a)€of€subpartVV.Ìà  àòòResponseóó:€€In€order€to€clarify€the€intent€of€the€referencingÐ  p( Ðsubparts,€we€made€the€suggested€revisions€to€the€referencingÏsubparts.€€Like€the€CAR,€the€other€equipment€leak€rules€now€makeÏit€clear€that€the€owner€or€operator€can€successfully€repair€aÏleaking€piece€of€equipment€within€the€time€period€without€theÏequipment€being€disqualified€from€the€original€delay€of€repairÏclassification.€€It€should€be€noted€that€these€revisions€areÏconsidered€within€the€scope€of€the€CAR€because€they€representÏclarifications€and€not€revisions€to€the€original€intent€of€theÏreferencing€subparts.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€requested€that€an€optionÐ Ø'(#< Ðbe€provided€in€subpartV€for€surge€control€vessels€and€bottomsÏreceivers€to€comply€with€the€EFR€or€IFR€requirements€of€40€CFRÏpart63,€subpartG.€€The€commenter€(IV-G-01)€also€requested€thatÏthe€option€to€route€vapors€to€a€fuel€gas€system€or€a€processÐ ˆ,Ø'D Ðshould€be€provided€in€both€HON€subpartH€and€part61,€subpartVÏand€that€the€option€to€route€emissions€to€a€process€be€added€toÏsubpartV.€€Two€commenters€(IV-G-01€and€VI-D-04)€noted€that€thereÏwas€no€reference€to€the€new€tables1€and€2€added€to€subpartV.€ÏThe€commenter€(IV-G-01)€also€pointed€out€that€the€reference€toÏtables1€and€2€should€be€added€to€ñúñððñúññúñððñúñ61.242„9€of€subpartV.ÏFurthermore,€the€commenter€(IV-G-01)€noted€that€table1€andÏtable2€are€for€existing€and€new€sources,€respectively.€€TheÏcommenter€suggested€that€"new€source"€and€"existing€source"€areÏMACT€terminology€and€are€not€appropriate€terminology€forÏsubpartV.Ìà  àOne€commenter€(VI-D-04)€requested€that€we€clarify€theÏpurpose€of€adding€a€definition€for€"maximum€true€vapor€pressure"Ïto€ñúñððñúññúñððñúñ61.241€of€40€CFR€part61,€subpartV€and€the€purpose€of€addingÏtable€1€and€table€2€to€subpartV.€€The€commenter€stated€that€theyÏhad€not€located€any€occurrences€of€the€term€"maximum€true€vaporÏpressure"€in€subpartV€except€in€the€newly€added€tables1€and€2.€Ìà  àòòResponseóó:€€We€would€like€to€clarify€that€some€provisionsÐ œì" Ðwere€inadvertently€left€out€of€the€proposed€rule.€€We€haveÏcorrected€these€by€doing€the€following:ÌÝ‚)ÿÝÝ  ÝÓ€ÓÝ‚)–¨Ýà0  àð"ðà0` (#(#àÝ  ÝAdding€a€reference€to€tables€1€and€2€in€ñúñððñúññúñððñúñ61.242„9€of€40Ð  p( ÐCFR€part61,€subpartV;€and݃)–¨è݌Р` (#` (# ÐŒÝ  ÝÌÝ‚)ÿÝÝ  ÝÝ‚)Ä©Ýà0  àð"ðà0` (#(#àÝ  ÝAdding€an€allowance€to€subpartV€so€that€surge€controlÐ xÈ+ Ðvessels€and€bottoms€receives€can€comply€with€theÏfloating€roof€storage€vessel€provisions€of€the€HON€orÏby€routing€to€a€process€or€control€device.݃)ĩߩ݌Р` (#` (# ÐŒÝ  ÝÌÓ€ÓWe€did€not€add€the€option€to€route€storage€vessel€emissions€to€aÏfuel€gas€system€to€the€HON€or€to€subpartV€because€it€is€notÏwithin€the€scope€or€intent€of€the€CAR€to€change€the€complianceÏoptions€for€sources€that€choose€to€continue€using€the€referencingÏsubparts.€€The€changes€we€made€in€this€case€to€subpartV€wereÏnecessary€to€clarify€the€control€requirements€for€surge€controlÏvessels€and€bottom€receivers.€€We€did€not€analyze€the€impacts€ofÏâ âexpanding€the€control€options€under€the€HON€and€subpartV.Ð ”*ä%> Ðà  àWe€used€"new"€and€"existing"€in€the€newly€added€tables€1€andÏâ â2€to€subpartV€to€be€consistent€with€the€corresponding€tables€andÏconcept€contained€in€the€HON.€€The€terms€"new€source"€andÏ"existing€source"€are€not€new€to€subpartV.€€The€definitions€are€Ïprovided€in€the€part61€general€provisions.€€See€ñúñððñúññúñððñúñ61.02.Ìà  àWe€would€also€like€to€clarify€that€we€added€the€definitionÏfor€"maximum€true€vapor€pressure"€to€subpartV€because€that€termÏis€used€in€the€newly€added€tables1€and€2.€€Without€adding€thisÏdefinition€the€rule€would€not€provide€guidance€on€how€toÏdetermine€the€maximum€true€vapor€pressure.Ìà  àòòCommentóó:€€One€commenter€(VI-D-04)€noted€that€the€proposedÐ h¸  Ðlanguage€to€ððñúñððñúññúñððñúñ60.482„2(g)€of€40CFR€part60,€subpartVV€andÏ61.242„2(g)€of€40CFR€part61,€subpartV€are€significantlyÏdifferent€than€ñúñððñúññúñððñúñ63.163(j)€of€the€HON€regarding€the€designation€ofÏunsafe„to„monitor€pumps.€€The€commenter€pointed€out€that€the€HONÏprovides€more€exemptions€than€subpartsVV€and€V€for€pumpsÏdesignated€as€unsafe„to„monitor.€€The€commenter€specificallyÏpointed€out€that€the€leak€repair€requirements€and€the€barrierÏfluid€demonstrations€are€not€required€by€the€HON€for€unsafe„to„¼monitor€pumps.€€The€commenter€suggested€that€we€revise€theÏproposed€language€for€ñúñððñúññúñððñúñ60.482„2(g)€of€subpartVV€and€ñúñððñúññúñððñúñ61.242-2(g)Ïof€subpartV€to€match€the€corresponding€language€in€theÏñúñððñúññúñððñúñ63.163(j)€of€the€HON.€€To€achieve€consistency€with€the€HON,€theÏcommenter€recommended€that€we€add€"and€(d)"€to€the€list€of€exemptÏparagraphs€in€ððñúñððñúññúñððñúñ60.482„2(g)€and€61.242„2(g).€Ìà  àòòResponseóó:€€We€would€like€to€clarify€that€we€intended€toÐ ü!L2 Ðadopt€the€HON€unsafe„to„monitor€provisions€into€subpartsVV€andÏV.€€We€inadvertently€created€some€inconsistencies,€and€we€haveÏedited€the€CAR€as€suggested€by€the€commenter€to€fix€the€problem.Ìà  àòòCommentóó:€€Two€commenters€(VI-D-03,€VI-D-04)€recommendedÐ ¬&ü!: Ðrevisions€to€40€CFR€part60,€subpartVV€and€40CFRpart61,ÏsubpartV€to€limit€monitoring€frequency€of€unsafe„to„monitorÏpumps€to€monthly€during€safe„to„monitor€times.€€The€commentersÏexplained€that€the€proposed€language€for€ððñúñððñúññúñððñúñ60.482„2(g)(2)€andÏ61.242„2(g)(2)€require€monitoring€of€unsafe„to„monitor€pumps€asÐ ˆ,Ø'D Ðfrequently€as€practicable€during€safe„to„monitor€times.€€TheÏcommenters€stated€that€during€safe„to„monitor€times,€theÏfrequency€of€monitoring€for€unsafe„to„monitor€pumps€should€beÏlimited€to€the€monitoring€frequency€for€other€pumps.€€OneÏcommenter€suggested€adding€"but€not€more€frequently€than€theÏperiodic€monitoring€schedule€otherwise€applicable"€to€the€end€ofÏððñúñððñúññúñððñúñ60.482„2(g)(2)€and€61.242„2(g)(2).€€Ìà  àòòResponseóó:€€We€have€adopted€the€commenterððs€suggestedÐ ä 4 Ðlanguage€and€have€edited€the€language€to€be€consistent€with€thatÏin€the€CAR€at€ñúñððñúññúñððñúñ65.103(c)(4)(i).€€The€rule€now€specifies€thatÏmonitoring€must€occur€"as€frequently€as€practical€during€safe„to„¼monitor€times,€but€not€more€frequently€than€the€periodicÏmonitoring€schedule€otherwise€applicable."Ìà  àòòCommentóó:€€One€commenter€(VI-D-04)€suggested€that€EPA€reviseÐ ì< Ðthe€language€in€ñúñððñúññúñððñúñ61.242„8(a)€to€clarify€the€requirements€forÏrepair€of€pressure€relief€devices€in€liquid€service€andÏconnectors.€€The€commenter€suggested€that€if€a€potential€leak,€asÏindicated€by€visual,€audible,€or€olfactory€evidence,€wereÏrepaired,€then€it€is€not€necessary€to€monitor€the€pressure€reliefÏdevice€or€connector.€€The€commenter€also€suggested€that€EPA€add€aÏparagraph€(a)(3)€to€ñúñððñúññúñððñúñ61.242„8€to€clarify€the€repair€criteria€forÏpotential€leaks€indicated€by€visual,€auditory,€or€olfactoryÏevidence.€€The€commenter€pointed€out€that€these€revisions€wouldÏbe€consistent€with€ñúñððñúññúñððñúñ63.169(a)€of€the€HON.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€have€made€theÐ Ð 0 Ðrequirements€for€pressure€relief€devices€in€liquid€service€andÏconnectors€consistent€with€other,€similar€provisions€in€the€HONÏand€in€the€CAR.€€Our€edits€give€the€owner€or€operator€the€choiceÏof€either€eliminating€the€indications€of€a€leak€or€performingÏinstrument€monitoring€to€confirm€the€presence€of€a€leak.ÌÌÔ  ÔÔ& X Ô5.2à  àCLARIFYING€OR€TYPOGRAPHICAL€EDITSÔ 5¿ÔÐ )T$> Ðà  àòòCommentóó:€€One€commenter€(VI-D„04)€pointed€out€that€inÔ'X)B¿ÔÐ 0*€%@ Ðseveral€places€in€the€proposed€amendments€to€subpartsVV€and€V,Ïwe€included€the€following€language,€"...routed€to€a€process€orÐ ˆ,Ø'D Ðfuel€gas€system€connected€by€a€closed€vent€system€to€a€controlÏdevice..."€€The€commenter€also€noted€that€we€used€someÏinconsistent€language€to€get€the€point€of€this€requirementÏacross,€and€that€common,€consistent€language€would€improve€theÏclarity€of€the€rule.€€The€commenter€suggested€that€the€languageÏshould€read,€"...routed€to€a€process€or€fuel€gas€system€òòoróóÐ Œ Ü  Ðconnected€by€a€closed€vent€system€to€a€control€device..."€€TheÏcommenter€listed€the€following€affected€sections:ÌÓ€Óà0  àð"ðà0` (#(#àðð60.482„2(d)(1)(ii)€of€40€CFR€part€60,€subpartVV;Ð` ` (#` (# Ðà0  àð"ðà0` (#(#àðð60.482„4(c)€of€40€CFR€part€60,€subpartVV;ÐØ( ` (#` (# Ðà0  àð"ðà0` (#(#àðð61.242„3(h)€of€40€CFR€part€61,€subpartV;€andРð ` (#` (# Ðà0  àð"ðà0` (#(#àðð61.242„4(c)€of€40€CFR€part€61,€subpartV.Ðh¸ ` (#` (# ÐÓ€ÓÌÓ€€Óà  àòòResponseóó:€€We€agree€with€the€commenter€that€the€suggestedÐ ”ä  Ðchanges€would€clarify€the€intent€of€the€rule,€and€have€made€theÏlanguage€consistent€in€the€above€mentioned€affected€sections.Ìà  àòòCommentóó:€€One€commenter€(VI-D-04)€pointed€out€that€theÐ h Ðlanguage€regarding€the€monitoring€of€pumps€located€at€an€unmannedÏsite€is€slightly€different€in€ððñúñððñúññúñððñúñ60.482„2(h)€of€40CFRpart60,ÏsubpartVV€and€63.163(h)€of€the€HON.€€The€commenter€suggestedÏrevising€the€list€of€exempt€requirements€in€ñúñððñúññúñððñúñ60.482-2(h)€toÏinclude€the€daily€requirements€of€ñúñððñúññúñððñúñ60.482-2(d)(5).Ìà  àòòResponseóó:€€We€agree€with€the€commenter€and€note€that€weÐ  p' Ðintended€to€include€the€daily€requirements€of€ñúñððñúññúñððñúñ60.482„2(d)(5)€toÏthe€list€of€exempt€requirements€at€unmanned€plant€sites.€€We€haveÏedited€ñúñððñúññúñððñúñ60.482„2(h)€to€reflect€this.Ìà  àòòCommentóó:€€Two€commenters€(IV„G„01,€VI-D-04)€advised€that€theÐ Ð / Ðsentence€found€at€ñúñððñúññúñððñúñ61.242„2(d)(6)(iv)€that€reads€"If€there€areÏindications€of€liquids€dripping€from€the€pump€seal..."€is€notÏneeded€because€it€is€redundant€to€ñúñððñúññúñððñúñ61.242„2(d)(6)(ii).€€TheÏcommenter€recommended€that€the€sentence€at€ñúñððñúññúñððñúñ61.242„2(d)(iv)€beÏremoved.€Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€revisingÐ Ø'(#; Ðñúñððñúññúñððñúñ61.242„2(d)(6)(iv)€as€proposed€is€unnecessary.€€The€languageÏproposed€to€be€added€is€redundant€to€existing€language€atÏñúñððñúññúñððñúñ61.242„2(d)(6)(ii).€€The€final€rule€does€not€contain€thisÏsentence.Ð ˆ,Ø'C Ðà  àòòCommentóó:€€One€commenter€(VI-D-04)€pointed€out€that€in€theÐ ° Ðproposed€language€in€ñúñððñúññúñððñúñ61.242„11(k)€of€40CFRpart61,€subpartV,Ïthe€reference€to€paragraph(l)(2)€may€be€in€error.€€The€commenterÏalso€pointed€out€that€the€reference€in€ñúñððñúññúñððñúñ61.242-11(l)(3)€ofÏsubpartV€to€ñúñððñúññúñððñúñ60.486(c)€of€40CFRpart60,€subpartVV€may€be€inÏerror.€€The€commenter€suggested€that€the€appropriate€referenceÏwithin€subpartV€would€be€ñúñððñúññúñððñúñ61.246(c).Ìà  àòòResponseóó:€€We€maintain€that€paragraph(l)(2)€should€beÐ ä 4 Ðreferenced€from€ñúñððñúññúñððñúñ61.242„11(k)€because€paragraph€(l)(2)€providesÏfor€the€designation€of€the€parts€of€the€closed€vent€system€thatÏare€difficult„to„inspect.€€We€agree,€however,€that€the€referenceÏin€ñúñððñúññúñððñúñ61.242„11(l)(3)€should€be€to€ñúñððñúññúñððñúñ61.246(c),€not€ñúñððñúññúñððñúñ60.486(c).€€WeÏhave€edited€ñúñððñúññúñððñúñ61.242„11(l)(3)€to€correct€the€error.ÌÌÌÐ  D” ÐØ ØÑ€CBÑÌÌÌÌà@´´!ìàÔ  Ô6.0€€MISCELLANEOUSÔ YÐÔˆÌÌÌà  àòòCommentóó:€€One€commenter€(IV-D-03)€requested€that€we€includeÐ ä 4 Ða€provision€in€the€CAR€confirming€that€the€SOCMI€rules€and€theÏCAR€apply€only€to€manufacture€of€materials€produced€from€theÏ11basic€SOCMI€chemical€building€blocks€and€not€to€extraction€orÏderivation€of€chemicals€from€natural€products.€€The€commenter'sÏrequest€(IV-D-03)€is€specifically€made€in€regard€to€turpentineÏand€turpene€alcohols.€€The€commenter€cited€a€body€of€evidenceÏfrom€past€EPA€regulations€and€background€information€documents€toÏsupport€that,€currently,€EPA€does€not€intend€to€include€chemicalsÏderived€from€naturally€occurring€substances€in€the€SOCMIÏregulations.€€The€commenter€(IV-D-03)€noted€that€such€anÏexclusion€is€not€explicit€in€any€SOCMI€regulations€except€theÏSOCMI€wastewater€rule,€and€suggested€adding€an€explicit€exclusionÏto€the€CAR.Ìà  àòòResponseóó:€€We€are€not€addressing€issues€of€applicabilityÐ Lœ* Ðwithin€the€referencing€subparts€under€this€rulemaking.€€TheÏcommenterððs€request€is€outside€the€scope€of€the€CAR.Ìà  àòòCommentóó:€€One€commenter€(VI-0G-02)€alleged€that€our€SOCMIÐ Ð 0 Ðregulations€under€40CFRpart60,€subpartsVV,€III,€NNN€and€RRRÏand€40CFRpart63,€subpartsF€and€G€do€not€include€emissionÏstandards€for€hexachlorobenzene€as€required€underÏsection112(d)(2)€of€the€Act.€€The€commenter€(VI-0G-02)€providedÏinformation€from€a€January25,€1999€petition€from€the€Sierra€ClubÏto€EPA€for€review€of€the€parts60€and€63€rules.€€The€commenterÏ(VI-0G-02)€concludes€that€the€aforementioned€regulations€are€inÏviolation€of€section112(c)(6)€of€the€Act€and€that€the€CARÏlikewise€will€be€in€violation€of€section112(c)(6)€of€the€ActÏbecause€it€consolidates€these€rules.Ð ˆ,Ø'D Ðà  àòòResponseóó:€€As€stated€in€the€preamble€to€the€CARÐ ° Ð(63FR57749),€it€is€not€the€purpose€of€the€CAR€to€change€theÏscope€of€the€requirements€or€applicability€of€the€referencingÏsubparts.€€If€future€changes€are€made€to€the€emission€standardsÏin€the€referencing€subparts,€then€those€changes€will€beÏincorporated€into€the€CAR€at€that€time€if€appropriate.Ìà  àòòCommentóó:€€One€commenter€(VI-G-05)€requested€that€we€use€theÐ ¸   ÐCAR€to€clarify€the€referencing€subparts€regarding€a€sourceÏbecoming€"no€longer€subject"€to€the€rules.€€As€an€example,€theÏcommenter€noted€that€the€HON€does€not€specifically€provide€for€aÏfacility€that€has€decommissioned€equipment,€shut€downÏhigh-emitting€processes,€or€implemented€pollution€preventionÏprocess€changes.€€Such€facilities€may€no€longer€meet€the€HON'sÏmajor€source€definition€and€are€therefore€no€longer€subject€toÏthe€HON.€€The€commenter€contends€that€the€referencing€subparts€doÏnot€provide€a€clear€procedure€for€how€to€handle€this€situation,Ïand€the€commenter€would€like€the€CAR€to€not€only€provide€theÏprocedure€but€also€encourage€its€use.Ìà  àòòResponseóó:€€It€is€not€the€intent€of€the€CAR€to€fundamentallyÐ È$ Ðor€significantly€change€the€referencing€subparts.€€EachÏreferencing€subpart€is€different€with€regard€to€how€and€when€toÏdetermine€or€re„determine€applicability.€€The€CAR€is€a€complianceÏalternative€available,€for€example,€at€facilities€subject€to€theÏHON;€the€CAR€does€not€attempt€to€alter€the€initial€or€anyÏsubsequent€determinations€of€HON€applicability€to€a€source.€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€noted€that€the€proposedÐ ü!L2 ÐCAR€does€not€address€the€mechanism€by€which€future€updates€forÏregulatory€programs,€such€as€the€Miscellaneous€Organics€NESHAP,Ïwill€be€added€to€the€CAR.€€The€CAR€should€also€address€how€theÏrequirements€for€units€subject€to€case„by„case€MACT€"hammer"Ïrequirements€will€be€addressed€under€the€CAR.Ìà  àòòResponseóó:€€This€proposal€cannot€address€mechanisms€forÐ )T$> Ðopting€to€use€the€CAR€in€future€rules,€because€these€rules€do€notÏyet€exist.€€However,€the€CAR€would€not€necessarily€requireÏsignificant€modification€for€use€through€a€future€rule.€€Ô_ÔFutureÐ ˆ,Ø'D Ðrules€could€be€written€to€contain€pointers€to€the€CAR.€€AnyÏappropriate€edits€to€the€CAR€to€consolidate€new€referencingÏsubparts€would€be€made€at€the€time€the€new€referencing€subpartsÏare€proposed€and€promulgated.Ð  4„ ÐÔ‡$X&ü XXLXlÿÔÓÂõ€ÓÒX°ÒÒX°ÒÑà°ÑÑX°ÑÑ s ÑÔ*rƒ+0 ddm dd m dd G?HX€%X€%rÔÔ,½ << ÔÔ,ð<< ÔÔ,0<< ÔÔ,~<< ÔÔ,Í<< ÔÔ+  ÔÐ 9€????& à €W€‚ˆ‚ƒƒ„„……9Ðà@   ìàò òTECHNICAL€REPORT€DATAó óˆÐ hˆ Ðà@÷ ÷ ìàòòòò(Please€read€Instructions€on€reverse€before€completing)óóóóˆÐ O€???>&Nn ˆ W ???? € €‚ˆ‚ƒƒ„„OÐòò1.€REPORT€NO.óóÐ ¦Æ Ѐ€€EPA„453/R„99„006Ð 8€???'0P??? „„……8Ðòò2.óóÐ ¦Æ ÐÐ =€????*0P??? „„……=Ðòò3.€RECIPIENT'S€ACCESSION€NO.óóÐ S€??B&¦Æ ˆ  ???? €L€‚ˆ‚ƒƒ„„……SÐòò4.€TITLE€AND€SUBTITLEóóÐ ¸Ø ЀConsolidated€Federal€Air€Rule€for€the€Synthetic€Organic€ChemicalÏManufacturing€Industryð!ðBackground€Information€for€PromulgatedÐ (H  ÐStandards€€€Ð N€???;, . çç?? „„……NÐòò5.€REPORT€DATEóóÐ ¸Ø  Ѐ€€ñ ñJulyñ ññ ñSeptemberñ ñ€2000Ð C9&Bb  ˆ L ??? €L€‚ˆ‚ƒƒ…ƒ…CÐÐ .€??? 2R ƒ „„…….Ðòò6.€PERFORMING€ORGANIZATION€CODEóóÐ ºÚ ÐÐ Q€??B&D d ˆ L ??? €Ù€‚<‚ƒƒ„„……QÐòò7.€AUTHOR(S)óóÐ p  Ѐ€U.S.€Environmental€Protection€AgencyÐ =€???*ú  ?? „„……=Ðòò8.€PERFORMING€ORGANIZATION€REPORT€NO.óóÐ p  ÐÐ S€??B&ú   < Ù ??? €»€‚ˆ‚ƒƒ„„……SÐòò9.€PERFORMING€ORGANIZATION€NAME€AND€ADDRESSóóÐ r ’  ÐÌ€€€Emission€Standards€Division€(Mail€Drop€13)Ì€€€Office€of€Air€Quality€Planning€and€StandardsÌ€€€U.S.€Environmental€Protection€AgencyÌ€€€Research€Triangle€Park,€NC€€27711Ð N€???;,”´ÍÍ&?? „„……NÐòò10.€PROGRAM€ELEMENT€NO.óóÐ r ’  ÐÐ C9&ü   ˆ » ??? €Ù€‚ˆ‚ƒƒ…ƒ…CÐÐ .€??? ·× ƒ „„…….Ðòò11.€CONTRACT/GRANT€NO.óóÐ ?_  ÐÌÐ S€??B&¯Ï ˆ Ù ??? €+€‚ˆ‚ƒƒ„„……SÐòò12.€SPONSORING€AGENCY€NAME€AND€ADDRESSóóÐ 'G ÐÌ€€€DirectorÌ€€€Office€of€Air€Quality€Planning€and€StandardsÌ€€€Office€of€Air€and€RadiationÌ€€€U.S.€Environmental€Protection€AgencyÌ€€€Research€Triangle€Park,€NC€€27711Ð N€???;,/O%@@,?? „„……NÐòò13.€TYPE€OF€REPORT€AND€PERIOD€COVEREDóóÐ 'G& ÐÌ€€€€FinalÐ C9&—·( ˆ + ??? €+€‚ˆ‚ƒƒ…ƒ…CÐÐ .€??? ßÿ(ƒ „„…….Ðòò14.€SPONSORING€AGENCY€CODEóóÐ g‡) ÐÌ€€€€EPA/200/04Ð U€???B&×÷+ ˆ + ??? €ú€‚ˆ‚ƒƒ„„……UÐòò15.€SUPPLEMENTARY€NOTESÐ §Ç, Ðóó€€€€€€€€€€Ð U€???B&1Q- ˆ ú ??? €—€‚ˆ‚ƒƒ„„……UÐòò16.€ABSTRACTóóÐ ©É. Ѐ€This€document€contains€a€summary€of€public€comments€received€on€the€Consolidated€Federal€Air€Rule€forÏthe€Synthetic€Organic€Chemical€Manufacturing€Industry€(40€CFR€65,€subparts€A€through€G).€€ThisÏdocument€also€provides€the€EPAððs€response€to€comments,€and€outlines€the€changes€made€to€the€proposedÏregulation€in€response€to€comments€received.Ð U€???B&å2 ˆ — ??? €€‚ˆ‚ƒƒ„„……UÐòò17.à@EEìàKEY€WORDS€AND€DOCUMENT€ANALYSISóóˆÐ Q€??B&]}3 ˆ  ??? €€‚ˆ‚ƒƒ„„……QÐòòa.à@  ® àDESCRIPTORSóóˆÐ 9€??*u •4?? „„……9Ðòòb.€IDENTIFIERS/OPEN€ENDED€TERMSóóÐ 9€???&u •5?? „„9Ðòòc.€Ô_ÔCOSATIÔ_ÔÐ u •6 ÐField/GroupóóÐ N€???#ÿ 7 ˆ  ??? €€‚ˆ‚ƒƒ„„……NЀ€Environmental€Protection,€Air€Pollution€Control,€AirÏEmissions€Control,€Synthetic€Organic€ChemicalÏManufacturing€Industry,€Reporting€and€RecordkeepingÏRequirementsÐ 9€??*É$é";?? „„……9ÐHazardous€air€pollutantsÌVolatile€Organic€CompoundsÐ 9€???&ý"!=?? „„9ÐÐ P€????#"7 > ˆ  ??? €û€‚ˆ‚ƒƒ„„……PÐòò18.€DISTRIBUTION€STATEMENTóóÐ A&a$? ÐÌ€€€Release€UnlimitedÐ J€??;,±'Ñ%Att0??? „„……JÐòò19.€SECURITY€CLASSòò€(Report)óóóóÐ A&a$B Ѐ€€€UnclassifiedÐ 9€???&Ë&ë$C?? „„9Ðòò21.€NO.€OF€PAGESóóÐ A&a$D Ðà@ƒ"ƒ"I#à138ˆÐ @6#Ë&ë$E ˆ û ??? € €‚ˆ‚ƒƒ…‚…@ÐÐ ,€??? »'Û%E‚ „„……,Ðòò20.€SECURITY€CLASSòò€(Page)óóóóÐ C(c&F Ѐ€€€UnclassifiedÐ 9€????&Í(í&G??? „„9Ðòò22.€PRICEóóÐ3)'C(c&H ˆ   ???? 3ÐÌÔ#†LXlÿX X$X&üzá#Ô