The Clean Truck Check is a mandatory emissions inspection program implemented by the California Air Resources Board (CARB) for most heavy-duty diesel and alternative-fuel vehicles with a gross vehicle weight rating (GVWR) over 14,000 pounds operating in California.
It is also called the Heavy-Duty Inspection and Maintenance Program to help ensure heavy-duty diesel and alternative-fuel vehicles maintain properly functioning emissions controls.
What Vehicles are Affected?
Nearly all heavy-duty vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds that operate in California are required to participate.
What are the Compliance Requirements?
- All applicable vehicles must be registered in CARB’s Clean Truck Check Vehicle System (CTC-VIS).
- An annual compliance fee is required
- Vehicle information has to be reported to CARB
- Starting in 2025, most vehicles have to undergo periodic emissions testing. Trucks have to be tested by a CARB-credentialed tester. Using devices that can screen for high emissions, enforcement is conducted through roadside monitoring. A “Notice to Submit to Testing” (NST) from CARB will be sent to the owner if the vehicle is flagged as a potential high emitter and will be required to submit a passing test within 30 days. Those who don’t comply may be subject to DMV registration holds and fines.
For more details about California requirements, visit Clean Truck Check (HD I/M)
At Michael & Company, we are committed to delivering the highest quality service for your vehicles. Our team is dedicated to CARB compliance and ensuring your trucks remain on the road. Compliance testing and fleet management services should be affordable for everyone so we keep our prices fair and competitive.