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aqp@tceq.texas.gov
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I/M Rules, Related Documents, and Helpful Links

Links to the Vehicle Emissions Inspection and Maintenance (I/M) Program rules, related documents, and other related Web sites.

Rules

TCEQ Vehicle Emissions Inspection Program rules

Analyzer Specifications

Texas Vehicle Emissions Inspection Analyzer Specifications

Related Documents

Fee Analysis

2016 Fee Analysis for AirCheckTexas Vehicle Emissions Inspection Program

2014 Fee Analysis for AirCheckTexas Vehicle Emissions Inspection Program

2012 Fee Analysis for AirCheckTexas Vehicle Emissions Inspection Program

2009 Fee Analysis for AirCheckTexas Vehicle Emissions Inspection Program

2007 Fee Analysis for AirCheckTexas Vehicle Emissions Inspection Program

Program Evaluation

2016 Inspection and Maintenance Program Evaluation

2015 Inspection and Maintenance Program Evaluation (Austin Area)

2014 Inspection and Maintenance Program Evaluation

2012 Inspection and Maintenance Program Evaluation

2009 Inspection and Maintenance Program Evaluation

2006 Inspection and Maintenance Program Evaluation

Program Enhancement Studies

2010 Enhancements to On-Board Diagnostics Components of the Inspection and Maintenance Program

2010 Eliminating Tailpipe Testing from the Inspection and Maintenance Program

2008 Estimates of Emission Reductions from Performing OBDII Tests on 1997 and Newer Diesel Vehicles up to 14,000 lbs GVW

2005 Estimates of Emission Reductions from Performing OBDII Tests on 1997 and Newer Light-Duty Diesel Vehicles

Helpful Links

The following links will take you off the TCEQ Web site. Exit TCEQ site

Texas Department of Public Safety (DPS)

Texas Department of Motor Vehicles (TxDMV)

Texas Department of Transportation (TxDOT)

U.S. Environmental Protection Agency (EPA)

Clean Air Act