Disclaimer

Not a government website

CTC Finder is an independent directory. It is not affiliated with, endorsed by or operated by the California Air Resources Board (CARB) or any government agency. The official Clean Truck Check program, the CTC-VIS reporting system and all compliance decisions belong to CARB. For official answers, use CARB's Clean Truck Check pages or the CARB hotline.

Not legal or compliance advice

Our guides summarize CARB rules in plain English and link to the official sources. They are general information, not legal, tax or compliance advice for your vehicle or fleet. Rules, deadlines and fees change; check the current rules with CARB before you act. Using this site does not make your vehicle compliant and we are not responsible for missed deadlines, holds or penalties.

Listing accuracy

Tester details come from CARB's public tester list, which testers choose to join, and from testers themselves. We refresh the data regularly and show the date it was last checked, but listings can be incomplete or out of date. A missing tester is not necessarily uncredentialed, and a listed tester is not necessarily still credentialed. Confirm services, hours, prices and credentials with the tester before you book.

No endorsement of testers

Testers are independent businesses. A listing, a "Featured" label or a quote we pass along is not a recommendation or a guarantee of anyone's work, price or availability. Any agreement is between you and the tester.

Prices

Prices on this site are ranges collected from testers' published prices, shown for orientation only. They are not quotes. Each tester sets its own price.

Outside links

We link to CARB, the DMV, testers' websites and other sources. We do not control those sites and are not responsible for their content or practices.

Questions

Email hello@ctcfinder.com. See also our terms of use and advertising disclosure. Last updated November 2, 2026.