Skip to Content
Questions or Comments:

SIP Revision: Vehicle Inspection and Maintenance, October 24, 2001

An update to the vehicle inspection and maintenance program.

The SIP files on this page are hosted by the Texas Records and Information Locator (TRAIL) web archive . If you need assistance with a file, please contact

On October 24, 2001, the TCEQ adopted a revision to the Vehicle Inspection and Maintenance (I/M) Program of the Texas State Implementation Plan (SIP) for the ozone nonattainment areas of Dallas–Fort Worth, El Paso, and Houston-Galveston-Brazoria. This page provides information on this SIP revision.

About the Revision

Adoption Date:


Proposal Date:


EPA Approval Date: 11/14/2001 ( 66 FR 57264 )

Key Changes: This SIP revision incorporates the following rules related to the implementation of the state’s Motor Vehicle Emission Inspection and Maintenance (I/M) program:

  • requires all high-volume vehicle emissions test stations in the Dallas–Fort Worth (DFW) and Houston-Galveston-Brazoria (HGB) program areas to offer both acceleration simulation mode (ASM-2) testing and on-board diagnostics (OBD) testing to the public;
  • requires all vehicle emissions test stations in the El Paso (ELP) program area to offer both two-speed idle (TSI) testing and OBD testing to the public;
  • adjusts the administrative portion of the test fees remitted to the state;
  • increases fees for the ELP area should the county opt into the low-income vehicle repair assistance, retrofit, and accelerated vehicle retirement program (LIRAP) created by House Bill 2134, 77th Legislature, 2001;
  • requires a test-on-resale component established by House Bill 2134;
  • incorporates the TSI and ASM-2 specifications into one equipment specification document with an amended date;
  • sets new equipment requirements and specifications regarding OBD equipment;
  • deletes the section related to waivers and extensions and creates a new section to establish an early participation incentive program.

Back to the top of the page Back to top

Related Rules

SIP Narrative and Appendices

Associated Rule Change

Back to the top of the page Back to top

Useful Link

For more information please visit the TCEQ's Vehicle Inspection and Maintenance Program Web page.

Back to the top of the page Back to top

Contact Us

David Serrins
Air Quality Division, TCEQ

Back to the top of the page Back to top