||Final technical support document for "Amendments to vehicle inspection maintenance program requirements incorporating the onboard diagnostic check" /
Gardetto, Edward, ;
E. Gardetto ;
T. Trimble ;
M. Reineman ;
||Environmental Protection Agency, Washington, DC. Office of Transportation and Air Quality.
|| Transportation and Regional Programs Division, Office of Transportation and Air Quality, U.S. Environmental Protection Agency,
Motor vehicles--Inspection--Government policy--United States. ;
Automobiles--Motors--Exhaust gas--Standards--United States.
Motor vehicles ;
Air pollution control ;
Exhaust emissions ;
Exhaust pipes ;
Mobile sources ;
US EPA ;
Onboard diagnostic(OBD) checks
||PDF file on file
||NVFEL Library/Ann Arbor, MI
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||1 online resource (39 pages)
On September 20, 2000, EPA proposed to revise existing Motor Vehicle Inspection/Maintenance (I/M) requirements related to the incorporation of Onboard Diagnostic (OBD) checks into such programs. Among other things, the proposed regulatory revisions--once adopted--will accomplish the following: 1) Allow the OBD-I/M check to replace tailpipe and evaporative system testing on OBD-equipped vehicles (with the exception of the gas cap evaporative system test); and 2) Revise the failure and rejection criteria for the OBD-I/M check. This Technical Support Document (TSD) provides EPA's technical justification for these amendments, based upon the Agency's findings gathered during three separate OBD-I/M pilot studies. These three pilot studies focused on the following aspects of OBD-I/M testing: 1) OBD-I/Ms effectiveness as compared to existing exhaust emission testing; 2) OBD-I/Ms effectiveness in identifying faults in the evaporative system; and 3) the unique implementation issues associated with incorporating checks of the OBD system into a traditional I/M setting. The results of EPA's pilot testing were shared while still in process with members of the OBD workgroup of the Mobile Source Technical Review Subcommittee established under the Federal Advisory Committee Act (FACA). The OBD workgroups membership includes representatives from the testing and repair industries, vehicle manufacturers, the states, EPA, scan tool manufacturers, the academic community, private consultants, and providers of OBD technician training.
Title from title screen (viewed June 11, 2014). "January 2001." "EPA420-R-01-002." Includes bibliographical references.