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Classifications of 8-Hour Ozone Maintenance Areas

As of August 30, 2011

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order). The Subpart 1 areas in the Greenbook are listed as "Former Subpart 1" until reclassification of the areas is finalized. Proposed reclassifications were published on January 16, 2009 74 FR 2936

View Notes
Category/Classification (Attainment Date)
MODERATE (June 2010)
     Beaumont-Port Arthur, TX [n*]
     Chicago-Gary-Lake County, IL-IN (Indiana portion) [n*]
     Cleveland-Akron-Lorain, OH [m*]
     Fredericksburg, VA [n*]
     Memphis, TN-AR [m*]
 
MARGINAL (June 2007)
     Cass Co, MI
     Detroit-Ann Arbor, MI [m*]
     Kent and Queen Anne's Cos, MD [m*]
     La Porte, IN
     Lancaster, PA [n*]
     Muskegon, MI [m*]
     Norfolk-Virginia Beach-Newport News (HR),VA [m*]
     Portland, ME [n*]
     Richmond-Petersburg, VA [m*]
 
FORMER SUBPART 1 (June 2009)
     Allegan Co, MI [m*]
     Allentown-Bethlehem-Easton, PA [n*]
     Altoona, PA [n*]
     Benton Harbor, MI
     Benzie Co, MI
     Birmingham, AL [m*]
     Canton-Massillon, OH [m*]
     Charleston, WV [m*]
     Cincinnati-Hamilton, OH-KY-IN [m*]
     Clarksville-Hopkinsville, TN-KY
     Clearfield and Indiana Cos, PA [*]
     Columbus, OH [m*]
     Dayton-Springfield, OH [m*]
     Door Co, WI [m*]
     Erie, PA [n*]
     Evansville, IN [m*]
     Flint, MI [m*]
     Fort Wayne, IN
     Franklin Co, PA [n*]
     Grand Rapids, MI [m*]
     Greene Co, IN
     Greene Co, PA [n*]
     Hancock, Knox, Lincoln & Waldo Cos, ME [nm*]
     Harrisburg-Lebanon-Carlisle, PA [n*]
     Haywood and Swain Cos (Great Smoky NP), NC
     Huntington-Ashland, WV-KY [m*]
     Huron Co, MI
     Indianapolis, IN [m*]
     Jackson Co, IN
     Johnstown, PA [n*]
     Kalamazoo-Battle Creek, MI
     Kewaunee Co, WI [m*]
     Knoxville, TN [m*]
     Lansing-East Lansing, MI
     Lima, OH
     Louisville, KY-IN [m*]
     Macon, GA [*]
     Madison and Page Cos (Shenandoah NP), VA
     Manitowoc Co, WI [m*]
     Mason Co, MI
     Muncie, IN
     Murray Co (Chattahoochee Nat Forest), GA
     Parkersburg-Marietta, WV-OH [m*]
     Raleigh-Durham-Chapel Hill, NC [m*]
     Reading, PA [m*]
     Rocky Mount, NC
     Scranton-Wilkes-Barre, PA [n*]
     South Bend-Elkhart, IN [m*]
     State College, PA
     Steubenville-Weirton, OH-WV [m*]
     Terre Haute, IN
     Tioga Co, PA
     Toledo, OH [m*]
     Wheeling, WV-OH [*]
     York, PA [n*]
     Youngstown-Warren-Sharon, OH-PA [nm*]
 

Notes:
n = area has whole or part county or counties in a previous 1-hr Ozone nonattainment area (as of June 15, 2005) no longer subject to the 1-hour standard
m = area has whole or part county or counties in a previous 1-hr Ozone maintenance area (as of June 15, 2005) no longer subject to the 1-hour standard
* = area has whole or part county or counties in a CO, PM-10, or PM-2.5 nonattainment or maintenance area or previous 1-hr Ozone nonattainment or maintenance area (as of June 15, 2005)
Details about the designations and classifications of previous 1-hour ozone nonattainment and maintenance areas can be found here.


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