Enter Your Vehicle Information
Provide the details about your vehicle, such as the make, model, year, and engine type, using our simple form.
Complete Secure Payment
Choose from our secure payment options to complete the transaction and finalize your request.
Complete Emissions Testing
Conduct the required test at a CARB-authorized facility.
Receive Your Certificate
Get your compliance certificate with our help confirming your vehicle meets emissions standards.
Clean Truck Check reporting through the Clean Truck Check Vehicle Inspection System (CTC-VIS).
Guidance with reporting requirements through the Clean Truck Check system using CTC-VIS.
Fast and secure submission process for emissions compliance.
Confirmation of compliance status delivered directly to your email.
Diesel and alternative fuel vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds.
All eligible vehicles registered in California must comply with Clean Truck Check requirements.
Any eligible vehicles registered outside California but operating within the state must also comply.
Agricultural vehicles meeting weight requirements are included, although specific exemptions may apply to certain types.
Not all vehicles are subject to Clean Truck Check compliance. The following are exempt:
To qualify for the Clean Truck Check certificate, vehicles must meet specific requirements related to weight, engine year, testing, and compliance.
Applies to vehicles with a GVWR over 14,000 pounds, which includes the vehicle’s empty weight and maximum load capacity.
Clean Truck Check program applies to all diesel and alternative fuel vehicles over 14,000 lbs GVWR, regardless of engine model year.
Even if your engine is older than 2010, your vehicle must still pass emissions tests to comply with the Clean Truck Check program.
Semi-Annual Testing: Most vehicles require emissions testing twice per year.
Annual Testing: Some agricultural vehicles and motorhomes may qualify for annual testing.
Quarterly Testing (Starting October 2027): Vehicles with on-board diagnostics (OBD), typically with 2013+ engines, will transition to quarterly testing for stricter emissions monitoring
Vehicles must meet or exceed CARB’s emissions thresholds for pollutants like particulate matter (PM) and nitrogen oxides (NOx) during testing.
All vehicles must be registered in the Clean Truck Check Vehicle Inspection System (CTC-VIS).
Registration requires the following details:
An annual fee must be paid for each vehicle to participate in the program.
The engine model year is critical because it reflects the emissions control technology built into the vehicle:
2010 or newer engines: Equipped with advanced emissions controls that reduce particulate matter (PM) and nitrogen oxides (NOx).
Older engines (pre-2010): These engines produce significantly higher emissions and typically fail to meet CARB standards without expensive upgrades or replacements.
Starting in 2027, vehicles with OBD systems (2013+ engines) will be subject to quarterly testing, ensuring real-time compliance monitoring.
The California Air Resources Board (CARB) requires emissions testing for certain vehicles to meet air quality standards. These requirements ensure vehicles comply with regulations aimed at reducing harmful emissions.
Diesel and alternative fuel vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds must undergo emissions testing as part of CARB's Clean Truck Check program.
Most heavy-duty vehicles must complete emissions testing twice a year.
Some vehicles, like specific agricultural vehicles and California-registered motorhomes, may qualify for annual testing.
Starting in October 2027, vehicles equipped with On-Board Diagnostics (OBD) systems will transition to quarterly emissions testing.
For vehicles with OBD systems, emissions data is collected directly from the onboard computer. This ensures that emissions controls are functioning correctly.
For older vehicles without OBD systems, a smoke opacity test measures the density of exhaust smoke. This test evaluates the level of particulate emissions.
Note: Testing is performed at CARB-authorized facilities. Clean Truck Check assists with reporting requirements but does not conduct the testing itself.
Failing to meet testing requirements can result in fines, registration holds, and other enforcement actions. Ensure compliance to avoid disruptions to vehicle operations.
The total cost is $95 per vehicle, providing a straightforward and hassle-free process for compliance.
Clean Truck Check certificate ensures that your vehicle or engine complies with California’s strict emission standards, allowing you to sell or operate your vehicle in the state.
Once you complete the form and payment, you will typically receive your Clean Truck Check certificate within 72 hours, directly to your email.
You will need to provide your vehicle’s make, model, year, engine type, and any additional required details related to emissions.
Yes, we use industry-standard encryption and secure payment gateways to ensure your information and transaction are fully protected.
If you plan to sell or operate your vehicle in California, you will need Clean Truck Check certificate to comply with their emission standards.
Your certificate will be emailed to you as a downloadable document, ready for use or printing.