Clean Truck Check compliance testing is required to commercial vehicles registered in California and Out of State vehicles entering California.
Non California registered commercial truck owners still need to register and create and account on California CARB CTC-VIS portal. Adding vehicle details to the company account will make compliance testing easier as you will already have annual compliance fees paid and processed.
Compliance Deadlines for Non-California Registered Vehicles. Since vehicle registration is from a different state, California Air Resources Board will determine vehicle compliance dates using the last number of the VIN. Each digit is assigned a month. Vehicle’s compliance test deadline is on the last day of the month of the assigned month in the table.
| Last Number of VIN | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Testing & Annual Fee Deadline Month | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jan |
EXAMPLE: VIN ends in 2, the testing deadline is December 31 and next semi annual testing deadline is 6 months later – June 30.
One expanded to the quarterly inspection frequency the same vehicle testing deadlines will be the last day of December, March, June, September
A Passing compliance test must be completed by credentialed Clean Truck Tester and submitted within 90 days before a vehicle’s compliance deadline. If your truck is due for compliance testing while in Southern California, or you are having problems related to CARB Compliance Certification – give us a call. For faster and more convenient CARB diesel emissions testing in San Diego Call Onsite CTC. We come to you and provide mobile Clean Truck Check Testing at your location.
We travel everywhere: Trucks Stops, Trucks Fuel Stations, Freight Ports, CHP Scales, Truck Parking Lots, Landing Docks and on the side of the road..
Heavy-duty vehicle owners must ensure that reported fleet, vehicle, and testing information is accurately reported in the Clean Truck Check – Vehicle Inspection System (CTC-VIS) and that their annual compliance fees have been paid if they operate in California.