Annual Truck Inspection in Texas: Federal and State Rules
Short answer: If you run a commercial truck, federal rules (49 CFR 396.17) require each vehicle, and each unit in a combination, to pass a periodic inspection at least once every 12 months, with proof on the vehicle. In Texas, commercial vehicles also still need a passing state safety inspection. A personal pickup no longer needs a state safety inspection since January 1, 2025, and Hidalgo and Cameron counties have no emissions test.
Last updated: November 9, 2026
Many drivers call it the "annual DOT inspection." The rule actually comes from the Federal Motor Carrier Safety Administration (FMCSA), part of the U.S. Department of Transportation. On top of it, Texas has its own safety inspection for commercial vehicles. Here's what each one asks for, in plain language, with links to the rules.
This guide is a general summary, not legal advice. Check the rule itself or ask the FMCSA or the Texas DPS if you're not sure how it applies to your truck.
The federal annual inspection (49 CFR 396.17)
What the rule says:
- Every commercial motor vehicle must be inspected periodically, and each unit in a combination counts on its own: the tractor and the trailer each need their own inspection.
- At least once every 12 months. A vehicle can't be operated unless its parts have passed an inspection within the preceding 12 months.
- Proof goes with the vehicle. The inspection report, or another form of documentation the rule allows, has to be on the vehicle.
Who can do it
- The motor carrier itself, if it has qualified inspectors.
- Or a business acting for the carrier, such as a commercial garage, a fleet leasing company, a truck stop or a similar business, as long as it has suitable facilities and uses inspectors who meet the FMCSA's qualifications (49 CFR 396.19).
So not every shop can do the federal inspection. Ask before you go: "Do you have an inspector qualified under 396.19, and will I get the report for the truck?"
A state inspection can count
The federal rule says an inspection done under a state program can count as the annual inspection, if that program meets the federal minimum standards. Ask the inspector whether the inspection you're getting covers the federal requirement.
The Texas safety inspection for commercial vehicles
On January 1, 2025, Texas changed its inspection program. According to the Texas Department of Public Safety (DPS):
- Most non-commercial vehicles no longer need a safety inspection before registration. Owners pay an inspection program replacement fee when they register instead.
- Commercial vehicles still need a passing safety inspection in every county, and they don't pay that replacement fee.
- Emissions testing continues only in certain counties. Hidalgo and Cameron are not on the list.
What that means in the Valley
| You drive… | State safety inspection | Emissions test | Federal annual inspection |
|---|---|---|---|
| A personal diesel pickup | No (since Jan. 1, 2025) | No (not required in Hidalgo or Cameron) | No |
| A commercial truck or trailer | Yes | No (not required in Hidalgo or Cameron) | Yes, if it's a commercial motor vehicle under FMCSA rules |
If you use a pickup for work, it may count as commercial. Check your registration and the FMCSA definitions, or ask the DPS.
Getting ready for the inspection
The federal rule lists the minimum standards an inspection checks. A few days before yours, it helps to:
- Walk around the truck and trailer and check every light.
- Listen for air leaks with the brakes set.
- Look at your tires for damage and tread.
- Fix known problems first, so the truck doesn't have to come back.
If the inspection finds something, a diesel shop can make the repair. See semi truck and trailer repair.
Emissions parts and inspections
Keep emissions parts working. The EPA says tampering with a vehicle's emissions control system is illegal under the Clean Air Act. If a DPF, EGR or DEF problem shows up, the fix is a repair. See diesel engine repair.
Need an inspection or a repair?
Call and ask whether the shop does annual inspections with a qualified inspector, or the repairs your truck needs before one. Shops on this line serve McAllen, Edinburg and Brownsville.