California Clean Truck Check Mobile Service
Onsite commercial diesel truck testing and reporting to California Air Resources Board to stay in emissions compliance per CARB Heavy-Duty Vehicle Inspection and Maintenance Program.
We come to you and get your truck CARB Compliant Onsite.

mobile clean truck check compliance
Our mobile technicians are CARB certified and credentialed testers with latest approved equipment to test, read and transfer emissions data to Clean Truck Check Vehicle Inspection System (CTC-VIS) database.
Heavy-Duty Vehicle Inspection and Maintenance Program implemented by CARB
Starting January 1st 2025 California Air Resources Board HD I/M program will require all commercial vehicles with gross weight over 14,000 pounds to test emission control systems and submit a reading snap shot to CARB database.
Our Services
- Mobile Clean Truck Check testing at your location.
- On demand same day services available.
- Instant reporting and updating test results using CTC-VIS system.
- Update vehicle record with CARB and DMV to show compliance.

What Is Clean Truck Check?
Clean Truck Check is a program implemented by The California Air Resource Board (CARB) to 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.
The action how the program works are following:
- Periodic commercial vehicle testing requirements,
- Other roadside emissions monitoring techniques,
- Identification of vehicles in need of emissions related repairs,
- Making sure any needed repairs are performed.
“Clean Truck Check compliance is basically a smog check for commercial trucks.”



How Clean Truck Check Compliance May Affect Your Business?
Unfortunately it is becoming more complex to run transportation and logistics business in California.
Starting in 2025 new truck diesel emissions testing requirements might cause delays and DMV holds on registration and plates renewals. Maintaining active CARB registration will help to minimize down time for your trucks.
Third Party Enforcement
In addition freight facilities, cargo ports, rail-yards, loading and holding facilities and even freight brokers and national vendors are mandated to collect and report. right to request proof of Clean Trucks Check compliance certification or check truck status through California Electronic Greenhouse Gas Reporting Tool (Cal e-GGRT) to grant entry and / or collect and maintain records of all vehicles entering freight facility that are not compliant with Clean Truck Check.
Avoid Delays and Loss of Business
We recommend register your business and create an account login for your company on CTC-VIS portal. Even if you have not received non renewal notice or if your vehicle is not registered in California. Early registration will speed up CARB compliance process in the future.
What Clean Truck Check program requires from you as Commercial Fleet Owner?
This program requires all commercial diesel, hybrid and alternative fuel vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds to be tested semi annually. And starting in 2027 quarterly testing will be mandatory to stay in compliance.
Commercial fleet owners or employees of a company may perform in house Clean Truck Check compliance testing on their own vehicles or hire out a credentialed testing company to do it for them. These rules apply to all California registered trucks and out of state vehicles operating withing the state of California.
Who is subject to Clean Truck Check Compliance?
All non-gasoline heavy-duty commercial vehicles operating in California with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds. That includes Diesel, Bio-Diesel, Propane, Natural Gas, Ethanol, Methanol engines.
- Commercial trucks and buses
- Agricultural vehicles
- Transit buses
- Motor Homes for Personal Use
- Motor Homes for Commercial Use
- Hybrid heavy-duty vehicles
Zero tailpipe emissions fuels like Electric and Hydrogen vehicles are excluded.
Instructions on how to get your truck Clean Truck Check Compliant
- Create owner account at https://cleantruckcheck.arb.ca.gov/
- Pay vehicles annual compliance fee
- Get your vehicle tested by credentialed tester or CARB certified smog station.
- Pass emissions compliance test and results will be automatically submitted and will show up in your CTC-VIS owners account.
- Your vehicle is now Clean Truck Check Compliant.
Please note if you are trying to get compliance certificate ASAP, keep in mind there are possible delays due to payment processing. Depending on the type of payment you may have to wait 1-7 business days. Credit or Debit card payments takes 1-2 business days. ECheck payments can take up 5-7 business days.
What Are The Requirements To Pass Clean Truck Check Emissions Testing and Inspection?
To successfully pass emissions test and obtain Clean Truck Check certificate vehicles must registered VIN in CTC-VIS database and meet specific requirement before testing can begin.
No Check Engine
Malfunction Indicator Light (MIL) must be off and there should not be any emissions related diagnostic trouble codes in vehicles memory. Pending, Stored Or Permanent.
Monitor Readiness
Readiness monitors determine whether emissions control systems have completed self test necessary to run and check for emissions related faults. Including data like distance traveled, number of warmups and engine run time since the last Check Engine codes cleared.
No Dead Battery
Disconnecting battery or needing to jump start the vehicle will erase OBD data and will clear saved readiness monitor status. You will need to complete multiple drive cycles until truck is ready for testing.
Who can perform Clean Truck Check compliance testing?
Heavy-Duty Vehicle Inspection and Maintenance compliance testing must be performed by CARB credentialed tester who completed HD I/M training course, passed examination and received CARB Authorized Tester Certification. You can look up a list of currently HD I/M authorized testing facilities in your area on CTC-VIS portal.
Mobile CARB Compliance Diesel Testing Near Me
Mobile on demand CARB compliance diesel testing service. We offer fast and professional San Diego Clean Truck Check emissions testing at your location. We come to your location in Southern California, the same or next day, carrying all necessary testing equipment and software to test and update your compliance certificate onsite. Testing available for 2013 year and newer vehicles with OBD J1937 and J1979 connectors.
Contact us with your CARB Compliance questions or to schedule mobile truck emissions testing appointment call (858) 255-1122.
Diesel Truck Emissions Compliance Testing
Diesel vehicles over 14,000 pounds are subject to Clean Truck Check testing whether or they are equipped with OBD (On-Board Diagnostics) port or not.
OBD system equipped vehicles, usually it means 2013 and newer diesel engines, are required to undergo a scan of the engine’s emissions OBD data using a California Air Resources Board certified OBD testing device and software.
Diesel vehicles without OBD, meaning 2012 and older diesel engines, are required to test by completing a smoke opacity test and a visual inspection of the emissions control equipment – Vehicle Emissions Control Equipment Inspection.



WE COME TO YOU
We Come To You
We offer all in one mobile CARB compliance testing and other related services. Onsite service at your location – means convenience for your fleet and saving valuable time. Available CTC-VIS account setup assistance, passing certification and