Skip to content. | Skip to navigation

Personal tools

Navigation

Questions or Comments:
siprules@tceq.texas.gov
You are here: Home / Air Quality / Mobile Source / Vehicle Inspection and Maintenance (I/M) Program

Vehicle Inspection and Maintenance (I/M) Program

Information and links to documents about the vehicle I/M program under the State Implementation Plan (SIP) for air quality.

Background

Areas affected: HGB, DFW, ELP, ARR

End date: None

Applicability period: Year-round

Source type: On-road mobile source

Emissions targeted: Nitrogen oxides (NOX), volatile organic compounds (VOC), carbon monoxide (CO)

Rule/Citation: 30 Texas Administrative Code (TAC) 114, Subchapter C (PDF)(HTML) Exit the TCEQ
Description: Texas first established a vehicle emissions testing program on January 1, 1995, meeting the U.S. Environmental Protection Agency's requirements for I/M programs. The I/M program has been implemented in 15 counties in the Dallas-Fort Worth, Houston-Galveston-Brazoria, and El Paso nonattainment areas, and in Travis and Williamson Counties in the Austin-Round Rock area.

The I/M program requires the annual inspection of gasoline-powered vehicles 2–24 years old in the affected counties. Vehicles must be inspected through Department of Public Safety–certified inspection stations for emissions of NOX, VOC, and CO.

return to topReturn to top


Recent Activities

On February 12, 2014, the commission adopted revisions to 30 Texas Administrative Code (TAC) Chapter 114, Control of Air Pollution from Motor Vehicles, and to the Texas I/M SIP implementing portions of House Bill (HB) 2305, 83rd Texas Legislature, 2013. The rule and SIP revisions replace the current Texas dual inspection and registration sticker system with a single registration insignia sticker system and modify the method used to collect the state’s portion of the vehicle safety and emissions inspection fee. The rule and SIP revisions maintain the current I/M program requirements until the changes required by HB 2305 are implemented on the single sticker transition date, anticipated to occur on or after March 1, 2015.

Beginning on the single sticker transition date, the adopted rule and SIP revisions:

  • eliminate the use of the safety and emissions inspection windshield sticker;
  • require vehicle owners to demonstrate compliance with the I/M program by providing a current valid vehicle inspection report; displaying a current valid vehicle registration sticker on the vehicle; or presenting another form of proof authorized by the Texas Department of Public Safety (DPS);
  • replace the Texas Commission on Environmental Quality as the entity providing information on compliant vehicles to the Texas Department of Motor Vehicles (DMV) and require the DPS to fill this role;
  • repeal the requirement for inspection stations to remit the state's portion of the safety and emissions inspection fee to the DPS;
  • reduce the maximum safety and emissions inspection fee, which inspection stations are allowed to collect from vehicle owners, by the amount of the state's portion of the inspection fee that will now be collected by the DMV or county tax assessor at the time of vehicle registration; and
  • replace the references to 37 TAC §23.93 in Chapter 114 with references to 37 TAC Chapter 23, because 37 TAC §23.93 was repealed by the DPS on March 13, 2013.

return to topReturn to top


Related Rules

These files are available in PDF (PDF Help) and WordPerfect (Help with Downloading Files).

Rule/Citation: 30 TAC 114, Subchapter C (PDF)(HTMLExit the TCEQ

Title          Date                Rule Log Number     Associated SIP Title     PDF WP
Adopted Feb 12, 2014 2013-035-114-AI I/M SIP 2013
Proposed Sept 24, 2013 2013-035-114-AI I/M SIP 2013
Adopted Nov 18, 2010 2009-027-114-EN I/M SIP 2009  
Proposed Jun 16, 2010 2009-027-114-EN I/M SIP 2009  
Adopted Oct 26, 2005 2005-026-114-EN I/M SIP 2005  
Adopted Nov 17, 2004 2009-027-114-EN Austin EAC SIP  
Proposed Jul 14, 2004 2009-027-114-EN Austin EAC SIP  
Adopted Sept 15, 2004 2004-035-114-AI I/M SIP 2004  
Proposed June 11, 2004 2004-035-114-AI I/M SIP 2004
Adopted Oct 8, 2003 2003-034-114-AI I/M SIP Oct 2003
Proposed July 9, 2003 2003-034-114-AI I/M SIP Oct 2003
Adopted Dec 4, 2002 2002-068-114-AI-SIP I/M SIP Dec 2002
Proposed Sept 12, 2002 2002-068-114-AI-SIP I/M SIP Dec 2002
Adopted Oct 24, 2001 2001-035-114-AI I/M SIP Oct 2001
Proposed Aug 10, 2001 2001-035-114-AI I/M SIP Oct 2001
Adopted Dec 6, 2000 2000-011A-114-SIP HGB I/M SIP Dec 2000
Proposed Aug 9, 2000 2000-011A-114-SIP HGB I/M SIP Dec 2000
Adopted Apr 19, 2000 1999-055C-SIP-AI I/M SIP Apr 2000
Proposed Dec 16, 1999 1999-055C-SIP-AI I/M SIP Apr 2000
Adopted June 3, 1998 1998-004-SIP I/M SIP June 1998
Adopted May 14, 1997 97119-SIP-AI I/M SIP May 1997
Proposed Mar 5, 1997 97119-SIP-AI I/M SIP May 1997

return to topReturn to top


Useful Link

Texas Department of Public Safety Vehicle Inspection Exit the TCEQ

return to topReturn to top


Contact Us

Morris Brown

Air Quality Division, TCEQ

Phone: 512/239-1438

return to topReturn to top