Emissions Inspection in Texas: Requirements, Cost & Exemptions
Whether you're buying, selling, or renewing registration in Texas, here's exactly what the emissions inspection program requires and what it costs.
Quick Reference
Is It Required?
Yes — in 17 affected counties only
Texas vehicle inspection includes emissions testing for vehicles in 17 counties (Houston, Dallas-Fort Worth, Austin, El Paso metros). Other counties only require safety inspection.
Counties Affected
Brazoria, Collin, Dallas, Denton, Ellis, El Paso, Fort Bend, Galveston, Harris, Johnson, Kaufman, Montgomery, Parker, Rockwall, Tarrant, Travis, Williamson
Only these 17 counties require emissions testing. Vehicles registered outside but driven inside are not affected — only registration county matters.
Test Types
- OBD-II for 1996+ gasoline vehicles
- ASM (Acceleration Simulation Mode) for older gas vehicles in Dallas-Fort Worth
- Two-Speed Idle test in some counties
- No diesel emissions testing in Texas
Cost & What to Expect
Typical cost: $25.50 emissions + $7.50 safety (where required)
Texas inspection fees are state-set. Emissions testing in affected counties: $25.50. Some stations charge extra for "convenience fees" — push back.
Exemptions
- Vehicles 2 years old or newer in their first 2 model years
- Vehicles 25+ years old (classic exemption)
- Motorcycles
- Off-road and farm vehicles
- Counties outside the 17 affected
If Your Vehicle Fails
LIRAP (Low Income Repair Assistance Program) up to $600 in affected counties
Texas LIRAP provides up to $600 in repair assistance for income-eligible drivers in the 17 affected counties.
Texas Standout Rule
Frequently Asked Questions
Is emissions inspection required in Texas?
Yes — in 17 affected counties only. Texas vehicle inspection includes emissions testing for vehicles in 17 counties (Houston, Dallas-Fort Worth, Austin, El Paso metros). Other counties only require safety inspection.
How often do I need an emissions test in Texas?
Annual at registration renewal. Texas requires annual safety + emissions inspection. As of 2025, statewide safety inspection has been removed — only emissions and commercial inspections remain.
How much does an emissions inspection cost in Texas?
$25.50 emissions + $7.50 safety (where required). Texas inspection fees are state-set. Emissions testing in affected counties: $25.50. Some stations charge extra for "convenience fees" — push back.
Who is exempt from emissions testing in Texas?
Exempt categories include: Vehicles 2 years old or newer in their first 2 model years, Vehicles 25+ years old (classic exemption), Motorcycles, and others. See full list on the official agency site.
What happens if my vehicle fails emissions in Texas?
LIRAP (Low Income Repair Assistance Program) up to $600 in affected counties. Texas LIRAP provides up to $600 in repair assistance for income-eligible drivers in the 17 affected counties.
Selling After Passing Inspection?
A compliant Texas bill of sale lets you transfer ownership cleanly after your vehicle passes its inspection.
Generate Bill of SaleSource: Texas Department of Public Safety — Vehicle Inspection. Emissions rules change periodically — verify current requirements before scheduling a test.