All vehicles on military installations in emission counties are required to be in compliance with the emission testing program.
- This includes vehicles registered in Texas and vehicles registered in all other states
- If your military installation is located in Brazoria, Fort Bend, Galveston, Harris, Montgomery, Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, Tarrant, El Paso, Travis, or Williamson county, your vehicle is subject to the I/M program testing guidelines.
- Background: The Clean Air Act Amendments of 1990 (CAAA) enacted new regulatory requirements for motor vehicles operating in ozone and carbon monoxide non-attainment areas. In the CAA, Congress imposed additional requirements on the Federal government to assure that government and Federal employee vehicles operated on Federal facilities located within a state motor vehicle I/M program area shall be tested, regardless of whether the vehicles are registered in the state or local I/M area. The program applies to government owned/leased vehicles ((CAA Section 118(c)) and employee owned/leased vehicles (CAA Section 118(d)) operated on federal facilities more than 60 days per year, regardless of the state where the vehicle is registered. Military tactical vehicles are exempt.
Relocating to Texas? Follow the instructions on our New to Texas page.
Temporarily in Texas, with a vehicle registered in another state? You will require an emission test if your military installation is in an emission county. Further information can be found on our Vehicle Registered in Another State page.
Texan in Another State? More information can be found on our Texas Registered Vehicle in Another State page.
My Texas registered vehicle is currently in another state. Are there special inspection exemptions that apply to me?
Some states have special exemptions for out of state students or military personnel. Contact the local DMV to ensure that you are in compliance with the inspection laws. Otherwise, follow the inspection laws of that state as listed above.