Clean Truck Check

What is California Clean Truck Check? What Trucks are subject to this Regulation?

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) over 14,000 pounds that operate on California public roads. This includes both in-state and out-of-state vehicles, as well as 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.



DMV Registration Holds for Non-Compliant Trucks: Click for More Information


Western Truck Exchange is a Clean Truck Check Credentialed Tester

Compliance testing must be performed by a CARB credentialed tester .. Western Truck Exchane is authorized to perform Calfornia Clean Truck Check including Smog checks. on-board diagnostic, smoke opacity, and visual inspections. Western Truck Exchange provides California Clean Truck Check testing for medium-duty and heavy-duty vehicles operating throughout California, helping truck owners stay compliant with CARB emissions regulations and avoid DMV registration holds. Our facility supports both in-state and out-of-state trucks, including commercial fleets, owner-operators, buses, motorcoaches, and specialty vehicles subject to Clean Truck Check requirements. Completing your Clean Truck Check at an authorized testing site ensures your vehicle remains legally registered and eligible to operate on California roadways.



As a CARB Credentialed Tester, Western Truck Exchange is authorized to perform all required Clean Truck Check inspections, including smog testing, on-board diagnostic (OBD) evaluations, smoke opacity testing, and visual emissions inspections. Our experienced technicians perform compliance testing efficiently and accurately, minimizing downtime while ensuring results meet California Air Resources Board standards. Whether you operate a single truck or manage a fleet, our Clean Truck Check services provide a reliable, compliant solution to keep your vehicles on the road.


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