Inspection and maintenance of new-technology vehicles in Washington, DC. Technical report

Technical Report · Mon Jul 01 00:00:00 EDT 1985

OSTI ID:5926533

Adler, J

The report presents the results of an emission-testing program conducted for EPA in Washington, D.C., under contract. In the test program, 1980 and 1981 model-year vehicles that failed the Inspection and Maintenance (I/M) test in Washington, D.C. were given two or three series of emissions tests. Each series included a Federal Test Procedure (FTP), a Highway Fuel Economy Test, and the following short tests: 50 mph cruise, four-mode idle, engine restart idle, and loaded two-mode. In June, 1984, EPA became aware of some quality-control problems which were evident at the D.C. inspection stations. These problems may have caused some of the vehicles which were participating in the project to be inappropriately failed during the initial inspection or inappropriately passed during the reinspection. Analyses described in the report evaluate the decisions made by the inspection lane, and compare the effects of I/M on the whole group of cars with those of subgroups that have had suspect cases removed.

• Research Organization: Environmental Protection Agency, Ann Arbor, MI (USA). Technical Support Staff
• OSTI ID: 5926533
• Report Number(s): PB-86-155611/XAB
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
500600 -- Environment
Atmospheric-- Regulations-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CONTROL
ENERGY CONSUMPTION
FEDERAL TEST PROCEDURE
FUEL CONSUMPTION
HYDROCARBONS
INSPECTION
MAINTENANCE
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
QUALITY CONTROL
VEHICLES