// Our Clean Truck Check Services //
Explore Our Clean Truck Check
What is a Clean Truck Check?
Senate Bill 210 directed the California Air Resources Board (CARB) to develop and implement a comprehensive heavy-duty vehicle inspection and maintenance (HD I/M) regulation to ensure that vehicles’ emissions control systems are properly functioning when traveling on California’s roadways. The Board approved the regulation on December 9, 2021, with implementation to be phased in starting January 2023. Dubbed the Clean Truck Check, the program combines periodic vehicle testing requirements with other emissions monitoring techniques and expanded enforcement strategies to identify vehicles in need of emissions related repairs and ensure any needed repairs are performed. When fully implemented, the program will provide significant reductions in smog-forming and carcinogenic toxic air pollution necessary to achieve federal air quality mandates and healthy air in California’s communities.
You can find out the current details of the Clean Truck Check at https://ww2.arb.ca.gov/our-work/programs/CTC
Does your Diesel Vehicle Require a Clean Truck Check?
All vehicles both personal or business use vehicles require a Clean Truck Check if they meet qualifying conditions. You can see the specific vehicle characteristics there: https://ww2.arb.ca.gov/clean-truck-check-overview-fact-sheet
Is your vehicle diesel, alternative-fuel or hybrid heavy-duty?
If so, you have met the primary qualifying condition for the CARB program. It only affects vehicles using these fuels.
Does your vehicle weight over 14,000 lbs?
The Clean Truck Check applies to nearly all diesel, alternative-fuel or hybrid heavy-duty vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 lbs that operate on California public roads — even if they are not registered in California.
Is your vehicle exempt?
Some vehicles are exempt, such as zero-emission vehicles, emergency vehicles, military tactical vehicles, historical vehicles, motorhomes registered outside California, and vehicles with very low NOx certification (≤ 0.01 g/bhp-hr) for certain years.
If your vehicle is not exempt that in all likelyhood it is subject to the CARB program and requires a Clean Truck Check
How Often Does My Truck Need to be Checked?
A vehicle that qualifies for a Clean Truck Check must comply with the Clean Truck Check (HD I/M) under the California Air Resources Board (CARB) regulation:
Most heavy-duty vehicles (GVWR over 14,000 lbs) will be required to undergo a Clean Truck Check twice per year (semi-annually)
Vehicles that are classified as on-road agricultural vehicles (meeting that specific definition) and California-registered motorhomes used for recreational or emergency occupancy are required have a Clean Truck Check once per year.
Beginning October 1, 2027, vehicles equipped with on-board diagnostics (OBD)-capable engines will increase to requiring a Clean Truck Check four times per year (quarterly) testing.
Why Get Your Clean Truck Check Done Here?
Our shop provides fast, reliable, and fully compliant Clean Truck Check inspections performed by certified CARB technicians. Here's why truck owners and fleet managers choose us:
Certified CARB Clean Truck Check technicians — trained, credentialed, and authorized to perform official HD I/M inspections.
Fast and efficient testing with minimal downtime, quick turnaround, and same-day CTC-VIS submission.
We guide you through the entire Clean Truck Check process — schedules, deadlines, vehicle requirements, and compliance rules.
Fleet-friendly service, including flexible scheduling, documentation support, and optional reminders for upcoming test deadlines.
Avoid costly fines, penalties, and DMV registration holds by staying fully compliant with California’s Clean Truck Check requirements.
Local, trusted, and professional — whether you own one work truck or manage an entire fleet, we provide accurate, honest, and efficient service.