Our mobile technicians are CARB-certified and credentialed testers, utilizing the latest approved equipment to test, read, and transfer emissions data to the Clean Truck Check Vehicle Inspection System (CTC-VIS) database. Call or TEXT us today at 323.283.7600. Se habla Espanol!
California CleanTruck Check deadlines occur every six months from the last day of the month corresponding to the VIN last digit. See breakdown below.
Last VIN Digit:
0 - April
1 - May
2 - June
3 - Jan
4 - Feb
5 - March
6 - Apr
7 - May
8 - Jun
9 - Jan
Vehicles may submit tests no more than 90 days prior to the vehicle’s compliance deadlines.
For example, a vehicle with a compliance deadline of February 1, 2025 may submit a passing emissions compliance test as early as November 3, 2024.
Non-compliance may result in DMV registration blocks and other enforcement action.
OBD-equipped vehicles (2013 and newer diesel engines and 2018 and newer alternative fuel engines) are required to undergo a scan of the engine’s OBD data using a California Air Resources Board (CARB) certified OBD testing device.
Alternative fuel non-OBD vehicles (2017 and older alternative fuel engines) are required to complete the visual inspection.
Upon a passing result, we disconnect our equipment, and the vehicle’s online profile is updated in real-time for California compliance. You can log in to https://cleantruckcheck.arb.ca.gov/ to view test results.
If your vehicle fails: In order to view your results, and details on the fail - you can log into https://cleantruckcheck.arb.ca.gov/.