Clean Truck Check testers in Fresno County

123 testing businesses in Fresno County are on CARB's public tester list, in 14 cities. 102 (83%) offer mobile testing, 47 do smoke opacity tests and 70 test motorhomes.

Cities in Fresno

Other cities

Auberry

Firebaugh

Five Points

Huron

Parlier

Riverdale

Trucking in Fresno

Fresno County is the agricultural heart of the San Joaquin Valley. Agricultural vehicles test once a year; other trucks test twice a year.

Frequently asked questions

How many Clean Truck Check testers are in Fresno County?

CTC Finder lists 123 testing businesses in Fresno County from CARB's public tester list (126 credentialed testers), last checked November 1, 2026. Listing on CARB's list is optional, so the real number can be higher.

Is there mobile Clean Truck Check testing in Fresno County?

Yes. 102 listed businesses in Fresno County offer mobile testing, which means the tester comes to your yard. Use the Mobile filter above to see them.

How much does a Clean Truck Check test cost in Fresno County?

Testers set their own prices. Published prices for an OBD test are usually $50–$135 per vehicle; smoke opacity tests for older trucks often cost more, and mobile testers may add a trip fee. See the cost guide.

Source: CARB's public Clean Truck Check tester list, last checked . Listing on CARB's list is optional for testers, so some credentialed testers are not shown. Services, hours and prices change; please confirm with the tester before you go. Something wrong? Send a correction.