On-Board Diagnostics (OBD)
OBD and Inspection and Maintenance - Archive
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Regulations
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Amendments to Vehicle Inspection Maintenance Program Requirements Incorporating the Onboard Diagnostic Check (PDF) (173K)
Notice of Proposed Rulemaking signed September 12, 2000, and published in the Federal Register September 20, 2000. Proposes to extend deadline for implementing OBD checks in I/M programs for one year. The notice also proposes to revise failure and rejection criteria and clarifies that dual testing of OBD-equipped vehicles is neither recommended nor required.Contact:
Dave Sosnowski
Phone: 734 214-4823
E-mail: sosnowski.dave@epa.gov -
I/M Program Requirement - On-Board Diagnostic Checks Amendment to the Final Rule (PDF) (50K) - April 27, 1998
Fact Sheet (also available as a PDF file, 13K)Contact:
Buddy Polovick
Phone: 734 214-7928
E-mail: polovick.buddy@epa.gov -
IM Program Requirement - On-Board Diagnostic Checks; Amendment to the Final Rule - December 16, 1997
Fact Sheet (also available as a PDF file, 11K)Contact:
Lee Cook
Phone: 734 214-4820
E-mail: cook.leila@epa.gov - I/M Requirement for On-Board Diagnostic Checks
August 27, 1996 Correction of August 6, 1996 Final Rule
On page 40946, in the first column, in Sec. 51.372(b)(3), in the last line, "August 6, 1996" should read "August 6, 1998".
August 6, 1996 Final Rule
August 18, 1995 Proposed Rule