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2006 Enhanced I/M Program Annual Report and 2005-06 Biennial Report

Executive Summary

Complete downloadable report PDF (1.53 mb, 71 pgs)

The United States Environmental Protection Agency (USEPA or EPA) has defined the reporting requirements for all state-run Inspection/Maintenance (I/M) programs in 40 CFR Part 51.366 (7-1-05 Edition). The I/M program for the State of New York (the State, or NYS) is jointly administered by the New York State Department of Environmental Conservation (NYSDEC) and the Department of Motor Vehicles (NYSDMV). This report reflects the coordination between the two agencies, and is being submitted to the EPA to fulfill the State's annual reporting requirements for the calendar year of 2006, as well as the biennial report addressing the program changes during the period of January 1, 2005 to December 31, 2006.

The State has operated a high enhanced I/M program in the nine (9) counties of the New York Metropolitan Area (NYMA) since 1998 using a mass emission transient test referred to as the New York Transient Emission Short Test (NYTEST). On April 1, 2005 in NYMA, the State commenced an on board diagnostic (OBD II) -based vehicle inspection program. This program was named New York Vehicle Inspection Program (NYVIP). By May 5, 2005 all testing facilities in NYMA were required to conduct OBD II inspections for all applicable 1996 and later model year light duty vehicles and trucks. During the 2006 calendar year, more than 4.8 million light-duty vehicles and trucks were registered in NYMA, of which 3.71 million (77.11% of the total) were emissions tested and 2.84 million (59.20% of the total) of the vehicles had OBD II inspections.

A low enhanced I/M program has been operating in the remaining fifty-three (53) counties of New York (Upstate New York, or Upstate) since 1998. On December 1, 2004 the State implemented the OBD II-based NYVIP Upstate. This allowed for the inclusion of all Upstate vehicles into the State's I/M program database. In 2006, from more than 5.2 million registered light- duty vehicles and trucks, almost 3.1 millions of them (or 59.14%) received OBD II inspections.

Pursuant to a Consent Order filed on September 6, 1977, all yellow medallion taxi cabs operating in New York City are required to be emissions tested on a three (3) times per year basis. These vehicles were included in the NYMA enhanced I/M Program since 1998. Following upgrades to their Woodside testing facility, the New York City Taxi Limousine Commission (TLC) commenced an OBD II inspection program for the taxi fleet on December 8, 2003. The program continued in 2006 for their fleet of 14,543 vehicles, with a total 35,772 OBD II inspections performed.

The State's goal is to continue improving the performance of the many tasks that are already in place in the State's I/M program. The State will maintain conformance with the March 1996 I/M State Implementation Plan (SIP) and the proposed February 2006 NYVIP SIP, and its intended goal: cleaner air for the residents of New York.


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  • NYSDEC
    Division of Air Resources
    Vehicle I/M Program
    625 Broadway
    Albany, NY 12233-3259
    518-402-8402
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