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2011 Enhanced I/M Program Annual Report

Executive Summary

Complete downloadable report PDF (565 kb, 65 pgs)

The New York State Departments of Environmental Conservation (DEC) and Motor Vehicles (DMV) jointly administer New York State's motor vehicle Inspection and Maintenance (I/M) programs. This report reflects the Departments' coordinated efforts to fulfill federal I/M reporting requirements under 40 CFR Section 51.366 for Calendar Year 2011.

New York State commenced mandatory motor vehicle emissions inspection within the downstate New York Metropolitan Area (NYMA) in 1981. The 9-county NYMA includes New York City (Bronx, Kings, New York, Richmond, and Queens Counties), Long Island (Nassau and Suffolk Counties), Rockland County, and Westchester County. In 1998, in response to revisions to the federal I/M regulations, New York replaced the existing "idle test" program in NYMA with the New York Transient Emission Short Test ("NYTEST") program. The NYTEST I/M program, which included tailpipe emissions and gas cap pressure testing, ended on December 31, 2010. The Calendar Year 2011 Annual Report does not include any detailed reporting related to the former NYTEST program.

New York State commenced mandatory onboard diagnostic (OBDII) inspections through the New York Vehicle Inspection Program ("NYVIP") beginning in 2004. OBDII inspections are required for most model year 1996 and newer light duty vehicles (LDVs) and light duty trucks (LDTs). Since May 2005, NYVIP has required statewide (62 counties) inspections at +/- 9,400 licensed inspection stations. From 2005-2010, the NYTEST and NYVIP programs operated contemporaneously at 3,200-4,000 licensed NYMA inspections stations.

During Calendar Year 2011, more than 4.95 million motor vehicles were registered within NYMA. 3,781,620 NYMA vehicles (or 76.37% of the total registered) were subject to NYVIP emissions testing. The majority of the emissions-tested vehicles (3,364,893 or 88.98%) received OBDII inspections.

During Calendar Year 2011, more than 5.31 million motor vehicles were registered in the 53-County "Upstate" I/M area. 4,102,184 Upstate vehicles (or 77.24% of the total registered) were subject to NYVIP emissions testing. The majority of the emissions-tested vehicles (3,636,365 or 88.64%) received OBDII inspections.

Pursuant to a Consent Order filed on September 6, 1977, all yellow medallion taxi cabs under the jurisdiction of the New York City Taxi and Limousine Commission (T&LC) are required to receive three emissions inspections per year. Beginning in December 2003, the T&LC commenced mandatory OBDII inspections at their centralized test-only Woodside (Queens) facility for their applicable taxi fleet. Beginning in 2010, additional "For-Hire" vehicles became subject to mandatory OBDII inspections at the Woodside facility. During Calendar Year 2011, T&LC completed 90,306 OBDII inspections (initial and re-inspections) for 37,998 distinct vehicles (28,544 LDVs and 9,454 LDTs).


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    Division of Air Resources
    Inspection & Maintenance
    625 Broadway
    Albany, NY 12233-3255
    518-402-8292
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