California clean truck check in california and las vegas

Trusted and certified

ATC is your trusted CARB Clean Truck Check partner throughout California and Las Vegas. We specialize in OBD Testing for vehicles 2013 and newer. Our certified technicians are efficient and effective, aimed to make the process quick and easy for you.

Transparent Pricing

Clean, upfront, competitive pricing with no hidden fees, so you always know exactly what you’re paying for.

Fleet Solutions

Customized testing and compliance solutions designed to keep your entire fleet on the road and in compliance.

Compliance assistance

Expert Certified DMV partners at your fingertips to help you navigate CARB and DOT regulations with confidence and ease without premium price.

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Clean truck check regulations

What is Clean Truck Check?

Clean Truck Check is a California Air Resources Board (CARB) program that requires most heavy-duty trucks and buses driving in California to prove they are not polluting excessively. If your vehicle operates on California public roadsโ€”whether itโ€™s registered in-state or out-of-stateโ€”and has a gross vehicle weight rating (GVWR) over 14,000 pounds, you may be required to complete regular emissions checks and submit results electronically.

Officially called the Heavy-Duty Inspection and Maintenance (HD I/M) program, Clean Truck Check focuses on diesel and alternative-fuel heavy-duty trucks, buses, and certain motorhomesโ€”the vehicles responsible for a large share of on-road emissions. The goal is simple: keep high-polluting vehicles off the road, reduce smog-forming pollution, and ensure that emissions control systems are working the way theyโ€™re supposed to. Starting on January 1st, 2027, fleets will be required to test four times a year.

For more details, visit California Air Resources Board.

How to determine vehicle compliance deadlines

Bold months indicate the month the compliance fee will be due

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