A plain-language reference to every state and county rule governing vehicle emissions inspections in Bexar County (San Antonio) — who needs one, who is exempt, fees, insurance requirements, and what happens if you fail. Reflects the 2025 safety inspection elimination (HB 3297).
Table of Contents
Bexar County is specifically designated by the Texas Commission on Environmental Quality (TCEQ) as a vehicle emissions testing area. That designation is what makes the OBD-II emissions test mandatory here. The rules in this section apply to all qualifying vehicles registered in Bexar County — not just vehicles driven here.
| Rule | Details |
|---|---|
| Why Bexar is designated | Near-nonattainment classification for EPA 8-hour ozone standard — air quality compliance requirement |
| Governing agency (state) | Texas Commission on Environmental Quality (TCEQ) |
| Governing agency (county) | Bexar County Tax Assessor-Collector — administers vehicle registration |
| Inspection required before registration? | YES — a passing emissions result must be on file with TxDMV before Bexar County will issue or renew your registration |
| Just moved to Bexar County? | Emissions test required at your first registration renewal in Bexar County — even if the vehicle passed elsewhere last year |
| Vehicle registered outside Bexar? | No emissions test required, even if you drive in San Antonio daily. The requirement follows registration, not location. |
| Registering in a neighboring county to avoid the test | Only legal if you genuinely reside there. Registering in a county where you don't live is fraud under Tex. Transp. Code § 502.040. |
"An owner of a motor vehicle… shall register the vehicle in the county in which the owner resides… A person commits an offense if the person registers a vehicle in a county other than the county in which the person resides…"
| Step | Action |
|---|---|
| Step 1 | Pass OBD-II emissions test at a TCEQ-licensed station |
| Step 2 | Results transmitted electronically to TxDMV — typically within minutes of the test |
| Step 3 | Renew registration online at TxDMV.gov, by mail, or in person at the Bexar County Tax Assessor-Collector office |
| County offices | Main: 233 N. Pecos La Trinidad · Branches: Crossroads, Leon Valley, Northeast, Southside, and others |
| Online renewal | Available at TxDMV.gov, usually within 24 hours of passing inspection |
| Late registration penalty | $10 if expired 1–10 days; increases thereafter (Tex. Transp. Code § 502.407) |
| Bexar County road and bridge fee | $10 county-specific fee, added to registration — separate from state fees |
| Question | Answer |
|---|---|
| Who can perform the test? | Only TCEQ-licensed Vehicle Emissions Inspection and Maintenance (VEIM) stations with certified equipment and technicians |
| Can any mechanic do it? | NO — must be a licensed TCEQ station; an ordinary mechanic cannot issue a passing certificate |
| How to verify a station is licensed | Search the TCEQ licensed facilities database at tceq.texas.gov |
As of 2026, the only annual vehicle inspection required in Bexar County is the OBD-II emissions test — and only for gasoline-powered vehicles that are 2 to 24 years old, registered in Bexar County. The separate safety inspection was eliminated on March 1, 2025. Motorcycles, electric vehicles, and vehicles 25 years or older do not need any annual inspection.
"The department shall require… an emissions inspection… for a vehicle… registered in a county that is included in a vehicle emissions inspection program established under Chapter 382, Health and Safety Code."
| Factor | Requirement |
|---|---|
| Vehicle age | 2 – 24 years old — annual emissions test required |
| Vehicle type | Gasoline-powered passenger cars and light trucks |
| Registration county | Bexar County (San Antonio) — designated emissions county |
| Frequency | Once per year, tied to vehicle registration renewal |
| Annual safety inspection | ELIMINATED for non-commercial vehicles as of March 1, 2025 (HB 3297) |
| Motorcycles | NOT REQUIRED — exempt from emissions program; safety inspection also eliminated |
| Electric vehicles | NOT REQUIRED — exempt from emissions; no safety inspection |
| Vehicles 25+ years old | NOT REQUIRED — completely exempt from all inspection requirements |
| Diesel vehicles | A separate opacity/smoke test may apply — not OBD-II; confirm with TxDMV |
| Commercial vehicles (18-wheelers, buses) | Different rules — annual safety inspection still required under a separate commercial program |
As of 2026, the following vehicles do not need any annual inspection in Texas — not emissions, not safety. If your vehicle is on this list, you do not need to visit an inspection station at all.
| Vehicle Type | Status |
|---|---|
| Motorcycles | EXEMPT — no emissions inspection; safety inspection eliminated 2025 |
| Electric vehicles (EVs) | EXEMPT — no emissions inspection; no safety inspection |
| Plug-in hybrid vehicles | EXEMPT from emissions inspection |
| Standard hybrid vehicles (e.g., Prius) | Follow gasoline vehicle rules — test required if 2–24 years old and registered in Bexar County |
| Vehicles 25+ years old | EXEMPT — completely exempt from all inspection requirements |
| New vehicles (first two model years) | EXEMPT — no inspection required for the first two model years after first sale |
| Trailers | EXEMPT — generally exempt from emissions inspection requirements |
| Farm / off-road equipment | EXEMPT — not registered for road use |
| Diesel vehicles | Separate opacity/smoke test may apply — not OBD-II; check with TxDMV |
| Commercial vehicles (18-wheelers, buses) | Still subject to annual safety inspection under a separate program |
"The following vehicles are exempt from the inspection requirements… a motor vehicle that is… (1) a new motor vehicle for the first two years after the vehicle is first sold… (2) a motor vehicle that is 25 or more years old."
Not every county in Texas requires an emissions test — only those officially designated by the TCEQ. Bexar County (San Antonio) is a designated county, which is why qualifying vehicles registered here must pass an annual OBD-II emissions test while vehicles in most other Texas counties do not.
"The commission [TCEQ] shall designate… counties in which motor vehicle emissions inspections are required… based on… air quality standards… population… and whether the area is classified as nonattainment."
| Item | Details |
|---|---|
| County | Bexar County (San Antonio metro area) |
| Designation basis | EPA nonattainment / near-nonattainment area for the 8-hour ozone NAAQS standard |
| Designating agency | Texas Commission on Environmental Quality (TCEQ) |
| Other designated Texas counties | Harris (Houston), Dallas, Tarrant (Fort Worth), Travis (Austin), El Paso, and others |
| Moving from a non-emissions county | Emissions test required at your next registration renewal once registered in Bexar County |
The emissions test used in Bexar County is an On-Board Diagnostics II (OBD-II) scan. A certified technician connects to the diagnostic port under your dashboard and reads your vehicle's computer. The system checks whether your engine's emissions-related monitors have completed their self-tests and whether any emissions-related fault codes (DTCs) are active. There is no tailpipe probe and no visual exhaust inspection — it is a computer-to-computer read.
| Item | Details |
|---|---|
| Test method | OBD-II port scan (diagnostic port, driver's side, under dash) |
| Applies to | Model year 1996 and newer gasoline-powered vehicles (OBD-II was federally mandated starting MY1996) |
| What is checked | Diagnostic Trouble Codes (DTCs) · Readiness monitor status · Malfunction Indicator Lamp (MIL) / check engine light |
| Pass condition | No active emissions-related DTCs · Required readiness monitors complete · MIL not commanded on |
| Fail condition | Any active emissions DTC · MIL illuminated · Too many monitors in "Not Ready" status (see § 10) |
| Equipment standard | TCEQ-certified OBD-II analyzer, updated to current Vehicle Identification Database (VID) |
| Typical test time | Under 5 minutes for most vehicles |
"The emissions inspection… shall consist of… an on-board diagnostic (OBD) system check using equipment… approved by the executive director… The inspection shall determine whether: (1) a malfunction indicator light (MIL) is commanded on; (2) any… diagnostic trouble codes (DTCs) are present; (3) the required OBD system monitors have completed their self-diagnostic routines."
The emissions inspection fee in Texas is set by state law at $18.50 for most passenger vehicles and light trucks. Every licensed station must charge exactly this amount for the inspection — no more, no less. Any station charging more or less than $18.50 for the inspection certificate itself is in violation of state law. The fee is fixed and non-negotiable.
"The fee for a vehicle inspection certificate… is $18.50 for a passenger car or light truck… A station or inspector may not charge a fee other than the fee established under this section for the issuance of a vehicle inspection certificate."
| Vehicle Category | Fee |
|---|---|
| Passenger car / light truck (OBD-II) | $18.50 — state-mandated, applies to all licensed stations |
| Motorcycles | EXEMPT — no inspection required in 2026; no fee applies |
| Electric vehicles | EXEMPT — no inspection required; no fee applies |
| Vehicles 25+ years old | EXEMPT — no inspection required; no fee applies |
| Can a station charge more than $18.50? | ILLEGAL — violation of § 548.509 |
| Can a station charge less? | ILLEGAL — also a violation of § 548.509 |
| Additional services (e.g., oil change) | Stations may separately charge for unrelated services — only the inspection fee itself is fixed by law |
Texas law requires you to provide valid proof of liability insurance before an inspection can be completed. This is a statutory requirement — not a station policy. Digital proof is legally acceptable under Tex. Transp. Code § 601.053: a photo on your phone, a screenshot, or your insurer's app all qualify. A printed card is not required.
"A vehicle inspection station… may not issue a vehicle inspection certificate for a vehicle unless the owner or operator of the vehicle provides evidence of financial responsibility… in a form authorized under Chapter 601."
"A person may not operate a motor vehicle in this state unless financial responsibility is established for the vehicle through… an automobile liability insurance policy… in at least the minimum amounts required by Section 601.072."
| Item | Details |
|---|---|
| Is insurance required at inspection? | YES — mandatory under § 548.104 and § 601.051 |
| Acceptable forms of proof | Physical card · Phone photo of card · Screenshot · Insurance app · PDF · Email |
| Is digital proof accepted? | YES — authorized under Tex. Transp. Code § 601.053 |
| Out-of-state insurance | Accepted if it meets Texas minimum liability limits (see § 07) |
| What if you don't have proof? | The inspection cannot be completed and no certificate can be issued. You must return with proof of insurance. |
Your liability policy must cover at least the amounts below. If your insurance — including an out-of-state policy — meets or exceeds these numbers, it qualifies. Most standard U.S. auto insurance policies already meet or exceed these limits. Check your declarations page (the summary page of your policy) to confirm your coverage amounts.
| Coverage | Minimum Required |
|---|---|
| Bodily injury — per person, per accident | $30,000 |
| Bodily injury — total per accident | $60,000 |
| Property damage — per accident | $25,000 |
"The amounts of financial responsibility required… are: (1) $30,000 for bodily injury to or death of one person in one accident; (2) $60,000 for bodily injury to or death of two or more persons in one accident; (3) $25,000 for destruction of property of others in one accident."
These are commonly called the "30/60/25" minimums. Texas raised these limits from the previous 20/40/15 minimums in 2011. If your policy predates 2011, confirm your current coverage amounts with your insurer.
If you are moving to Texas, purchasing a vehicle from out of state, or transferring a title to Texas plates, a passing emissions inspection is required before you can register the vehicle in Bexar County. Your existing out-of-state insurance is accepted — you do not need to switch to a Texas insurer before the inspection, as long as your current policy meets the 30/60/25 minimums (§ 07).
"An applicant for a Texas certificate of title for a motor vehicle… must provide… evidence that the vehicle has passed a vehicle inspection… required under Chapter 548… if the vehicle is to be registered in a county that requires an emissions inspection."
| Question | Answer |
|---|---|
| Is an inspection required to get Texas plates? | YES — required prior to title transfer in Bexar County |
| Is out-of-state insurance accepted? | YES — if it meets the Texas 30/60/25 minimums |
| Must I switch to a Texas insurer first? | NO — out-of-state policy is accepted at the inspection station |
| Where to complete the title transfer | Bexar County Tax Assessor-Collector (after the inspection is on file) |
| Time limit to register after moving to Texas | 30 days after establishing Texas residency |
If your vehicle fails, you pay the $18.50 fee at the time of the test — whether you pass or fail. That fee entitles you to one free reinspection at the same station within 15 days, after you have repaired the issue. If you return after 15 days, or go to a different station, you will be charged the full $18.50 fee again.
"If a vehicle fails the inspection… the owner of the vehicle… is entitled to one reinspection at the same station within 15 days of the failed inspection without paying an additional inspection fee, provided the vehicle is repaired… and returned to the station."
| Item | Rule |
|---|---|
| When do I pay? | At time of the initial inspection — pass or fail |
| Reinspection cost | $0 — free if within 15 days at the same station |
| Reinspection window | 15 days from the date of the failed inspection |
| Must I return to the same station? | YES — a different station will charge the full fee again |
| What if I return after 15 days? | Full $18.50 fee applies — treated as a new inspection |
| Number of free reinspections per failure | One (1) |
Your vehicle's computer runs a set of internal self-tests called "readiness monitors." These must be completed before the vehicle can pass an emissions test. If too many monitors are in "Not Ready" status — which commonly occurs after a battery disconnect, an ECU reset, or minimal driving after a repair — the vehicle will be marked as a failed inspection. The fix is to drive the vehicle through a mix of highway and local driving for a few days. No repair is needed — only driving time.
| Item | Details |
|---|---|
| Common causes | Battery disconnect · Recent ECU reset · Limited driving after a repair |
| Monitors allowed "Not Ready" — MY 1996–2000 | Up to 2 (fail if more than 2 are incomplete) |
| Monitors allowed "Not Ready" — MY 2001 and newer | Up to 1 (fail if more than 1 is incomplete) |
| Is a mechanical repair required? | NO — this is typically a data readiness issue, not a broken component |
| How to resolve | Drive the vehicle normally — mixed city and highway — for 1 to 5 days, then return |
| Do I pay the inspection fee for a "not ready" failure? | YES — "not ready" counts as a failed inspection; the 15-day reinspection rule applies |
"A vehicle shall fail the OBD inspection if… (2) for model year 1996 through 2000 vehicles, more than two… readiness monitors indicate 'not ready'… (3) for model year 2001 and later vehicles, more than one… readiness monitor indicates 'not ready'…"
When your vehicle passes inspection, the results are transmitted electronically to TxDMV and linked to your vehicle record — typically within minutes. When you renew your registration online, by mail, or in person, the system automatically verifies that a current passing inspection is on file. You do not need to bring your inspection report to the DMV. Since 2015, Texas uses a single registration-only windshield sticker; there is no longer a separate inspection sticker.
"An inspection station shall electronically transmit to the department… the results of each vehicle inspection performed at the station… at the time the inspection is performed."
| Item | Details |
|---|---|
| Separate windshield inspection sticker | ELIMINATED — Texas moved to a single-sticker registration system in 2015; no inspection sticker has been issued since |
| Registration sticker | Still required — one registration-only sticker on the windshield |
| How inspection links to registration | Transmitted electronically to TxDMV at time of inspection — no action required by the vehicle owner |
| Must I bring my inspection report anywhere? | NO — results are filed automatically with TxDMV |
| How long is the passing inspection valid? | 12 months from the date of the inspection |
| Can I renew online after passing? | YES — TxDMV.gov, typically within 24 hours of the inspection |
| Registration renewal blocked when? | When no current passing inspection is on file in TxDMV — renewal cannot proceed until a new inspection passes |