Independent guide. Not affiliated with the State of Texas, TxDMV, DPS, TCEQ or Bexar County. Always confirm with the official sources linked on each page.

Do I need an emissions test in Bexar County?

Most likely yes, if your car runs on gasoline and is 2 to 24 years old. Starting November 1, 2026, gasoline-powered vehicles registered in Bexar County must pass an emissions (OBD) test before initial registration or renewal.

Not tested: electric-only vehicles, diesels, motorcycles and mopeds, gasoline vehicles 25+ years old, vehicles registered as Antique, and new vehicles until their second anniversary. See all exemptions.

You do not need a test until your registration is due for renewal.

Nov 1, 2026Bexar testing starts
Up to $18.50Paid at the station
+$2.75State emissions fee at registration
2–24 yrsGasoline vehicles tested
15 daysFree retest at the same station
90 daysTest inside your renewal window

Check your vehicle

On your registration receipt or title.

The checker runs in your browser and sends nothing anywhere. It is a guide, not an official determination: your TxDMV renewal notice and the inspection station have the final say.

The short version

  1. Wait for your renewal window. Registration can be renewed up to 90 days before it expires, and the emissions test must be done within that window.
  2. Fix the check-engine light first. A lit or "commanded on" check-engine light with a stored trouble code fails the test. What to do.
  3. Get tested at a DPS-certified station in Bexar County. Use the station locator.
  4. Renew online, by mail or in person once the test is on record. Estimate the cost.

Why is this happening?

Safety inspections for non-commercial vehicles ended statewide on January 1, 2025. Emissions testing is a separate state program. TCEQ lists Bexar County (the San Antonio area) as joining the existing 17 emissions counties on November 1, 2026, and Bexar County stations cannot run emissions tests before that date.

Renewing in late 2026? If your registration expires in November or December 2026 and you renew before November 1, 2026, TxDMV says no emissions test or $2.75 fee is required this time. How the cut-off works.

Sources for this page

  1. TCEQ – Vehicle Emissions Inspections in Texas (program overview)
  2. TCEQ – Highlights of the Vehicle I/M Program (San Antonio Area / Bexar County)
  3. Texas DPS – Bexar County Emission Inspections FAQ
  4. Texas DPS news release, Jan 5, 2026 – Upcoming Emissions Test Requirement in Bexar Co.
  5. TxDMV Registration & Title Bulletin #003-26 (Sept 14, 2026) – Bexar County Emissions Testing Requirements (PDF)
  6. Texas DPS – Vehicle Safety Inspection Program Changes Now in Effect
  7. 30 Texas Administrative Code §114.50, Vehicle Emissions Inspection Requirements (rule text via the Justia mirror of the official TAC)
  8. Texas DPS – Unique Vehicles (antique, classic, motor homes)

Last updated: October 2026. Every rule, fee and date on this page comes from the official sources above. If anything here disagrees with them, the official source wins. Report an error.