To Schedule a Clean Truck Check call 562-921-1411
What is Clean Truck Check?

According to the California Air Resources Board https://ww2.arb.ca.gov/overview-fact-sheet-clean-truck-check: “It is a regulation to test heavy-duty vehicles’ emissions control systems for proper operation. Clean Truck Check applies to nearly all diesel and alternative fuel heavy-duty vehicles with a gross vehicle weight rating (GVWR) of over 14,000 pounds that operate on California public roads and highways even if they are not registered in California. This includes public vehicles (federal, state, and local government); motorcoaches; transit, shuttle, and school buses; hybrid vehicles; commercial vehicles; personal vehicles; California-registered motorhomes; single vehicle fleets; and vehicles registered outside of California (not including motorhomes).”

Clean Truck Check FAQ
Has enforcement started for Clean Truck Check?
Clean Truck Check began in January 2023 with the use of roadside emissions monitoring devices (REMD) to screen for vehicles that may have high emissions. Vehicles flagged as potential high emitters will receive a Notice to Submit to Testing (NST) from the California Air Resources Board (CARB) enforcement to ensure the vehicle is operating with properly functioning emissions control systems. Upon receipt of an NST, you’ll have 30 calendar days to submit to CARB a passing emissions compliance test performed by a credentialed tester. Be sure to allow enough time in case repairs are required. Additionally, vehicles deemed non-compliant or subject to enforcement action may be subject to additional compliance testing and penalties.
Am I required to report and pay an annual compliance fee?
For vehicles subject to Clean Truck Check, you must pay your annual compliance fee before the due date to remain compliant. The annual fee increases in accordance with California's Consumer Price Index. For example, the compliance fee for 2025 will be $31.18.
When do the emissions compliance testing requirements begin?
Emissions compliance testing requirements were effective beginning on October 1, 2024. All compliance deadlines on or after January 1, 2025, will require the submission of a passing emissions compliance test as part of the vehicle’s compliance demonstration. Emissions compliance testing must be performed by a CARB credentialed tester and passing tests may be submitted by the tester up to 90 days before the vehicle’s compliance deadline to allow time for any necessary repairs. For example, a vehicle with a compliance deadline of February 1, 2025, may submit a passing emissions test as early as November 3, 2024.
Is Tom’s Truck Center a Credentialed Tester for the Clean Truck Check?
Yes, all Tom’s Truck Center locations are certified testers under the Clean Truck Check program.