CARB’s Newest Program: Clean Truck Check

Are you ready for the Clean Truck Check Program?

Previously Referred to as the Heavy Duty I/M Program, CARB has developed a new, comprehensive Engine Inspection & Maintenance program for all non-gasoline vehicles over 14,001+ lbs. that enter California. This new program is the Clean Truck Check Program. Heavy-duty vehicles remain one of the largest emissions contributors in the state and the purpose of this new program is to ensure trucks on the California roadways are properly maintained in order to minimize air pollutant emissions during operation. This will require both engine and emission systems to be inspected, maintained, issues identified and repaired prior to use.

Several fleets have already been issued NTS (Notice to Submit to Testing) to prove your vehicles are not high emitting or polluting on the California road ways. APL cameras are stationed all over California to identify high emitters. If you receive an NTS – you have 30 days to complete additional testing with a certified vendor to prove your engine and emission system is in good working order.

As of January 31, 2024, Fleets and Independent Owner operations should have created a CARB VIS account and paid CARB their annual fees. If you have not done this, your DMV renewal will be on HOLD.

The next step is to complete the Periodic Testing. This must be performed by a credentialed tester. CARB have delayed the “official” start of the Clean Truck Check Periodic Testing to October 2024, however CARB are allowing fleets flexibility with respect to the first emission inspection. A Clean Truck Check emissions test can be submitted in 2024 and will count towards the first Clean Truck Check emissions test requirement for 2025. This allows fleets more time to understand which trucks are passing and failing the inspection, and more time to get emission related issues repaired. Submission to CARB is an OBD and/or PSIP Visual inspection to demonstrate to CARB, no active ESU codes or MIL Issues exist. Failure to do so will prevent California Truck Certification and DMV renewal.

Testing Frequency:

• In 2025, the Periodic Testing Interval is 2 times per year
• In 2026, the Periodic Testing Interval is 2 times per year
• In 2027, the Periodic Testing Interval is 4 times per year

If your vehicles are CA Exempt, or registered in another state, then the last digit of the VIN determines which month you have to do your testing, by vehicle.

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