
Enter Your Vehicle Information
Provide your vehicle’s basic details, including make, model, year, VIN, and engine type.
Choose the Type of Application
Select whether you’re applying for a new CA Certificate, renewing an existing one, or requesting a temporary 5-Day Pass
Upload Required Documents
Attach your truck’s registration, emission compliance records, and any other supporting documents needed for your selected application type
Review and Confirm Your Information
Double-check all details to ensure accuracy before submitting
Submit and Receive Confirmation
Submit your completed form and payment. After confirmation by email, our team will handle your CA emissions certificate or permit.
A single form handles all your California emissions requirements. Apply online for your certificate, yearly renewal, or a 5-Day Pass for temporary entry into California.
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.
Assistance with obtaining a 5-Day Pass to operate legally in California while your truck’s compliance or registration is being processed.



Diesel and alternative fuel vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds.
All trucks and buses registered in California must comply with CARB’s Clean Truck Check (HD I/M) program. This includes submitting periodic emission tests, maintaining compliance records, and ensuring that engines meet current California emission standards. Failure to comply may result in registration holds or penalties from the DMV.
Any eligible vehicles registered outside California but operating within the state must also comply. If a carrier only enters California occasionally he can apply for a 5-Day Pass, which allows legal operation in the state for up to five consecutive days per calendar year. This is a convenient option for drivers making short-term deliveries or transits without full annual registration.
All vehicles subject to the Clean Truck Check must renew their CARB compliance annually. Vehicles over 14,000 lbs GVWR must provide engine type and model year when renewing. Keeping these records up to date ensures your vehicle meets emission standards and can operate legally in California.
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.
Yes. CARB allows a temporary 5-Day Pass for trucks entering California without a Clean Truck Check certificate. This permit lets out-of-state or newly purchased vehicles operate legally for up to five days while arranging emissions testing or registration compliance.
Beginning in 2025, more vehicles, including out-of-state trucks operating in California must report test results and maintain compliance. Non-compliant vehicles may face registration holds or fines.
You can get it by completing the emissions compliance process. Truck owners must register their vehicle in the CARB Clean Truck Check portal, perform the required periodic emissions testing (PEA) at an approved facility, and submit the test results online to receive a valid certificate.
No. The California Clean Truck Check program is not going away. It’s a long-term emissions compliance program managed by the California Air Resources Board to ensure heavy-duty trucks meet air quality standards.
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.