The Clean Truck Check program is a California Air Resources Board (CARB) regulation designed to reduce emissions from heavy-duty vehicles. It requires vehicle owners to report vehicles, pay compliance fees, and complete emissions testing.text goes here

Most diesel, alternative fuel, and hybrid vehicles with a GVWR over 14,000 lbs must comply if they operate on California roads—even if they are registered out of state.

Yes. Any applicable vehicle operating in California must meet Clean Truck Check requirements, including reporting, testing, and paying compliance fees.

Item desTo comply with CARB Clean Truck Check, you must:

1. Create an account in the CTC-VIS system

2. Report your vehicle information

3. Pay the annual compliance fee

4. Complete and submit emissions testing

Item desCTC-VIS (Clean Truck Check – Vehicle Inspection System) is the CARB online system where you:

• Register your vehicles

• Pay compliance fees

• Track deadlines

• View test results

Most vehicles currently require emissions testing twice per year, with some vehicles moving to quarterly testing starting in 2027.

Testing must be completed by a CARB credentialed tester who is authorized to perform and submit emissions test results.

Failure to comply can result in:

• DMV registration holds

• Fines and penalties

• Inability to operate in California

Penalties can be significant and may impact your ability to run your business.

Yes, some vehicles are exempt, including:

• Gasoline vehicles

• Zero-emission vehicles

• Military vehicles

• Certain emergency vehicles

Typically, the leasing company (lessor) is responsible unless the lease agreement assigns responsibility to the lessee.

Item descriptionBuyers must ensure compliance within a set timeframe

• Vehicles must be updated in CTC-VIS within 30 days

• Testing may be required depending on timing

Yes. Each vehicle requires an annual compliance fee, which must be paid through the CTC-VIS system.

Item descriptionYes. Vehicles can typically be tested up to 90 days before the compliance deadline, allowing time for repairs if needed.

Item Yes. The DMV uses CTC-VIS data to verify compliance. If your vehicle is not compliant, your registration can be delayed or blocked.