Clean Truck Check testers in Mariposa County
1 testing business in Mariposa County are on CARB's public tester list, in 1 city. 1 (100%) offer mobile testing, 1 do smoke opacity tests and 1 test motorhomes.
Testers by city
Mariposa
-
Smith Construction Services LLC
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Frequently asked questions
How many Clean Truck Check testers are in Mariposa County?
CTC Finder lists 1 testing business in Mariposa County from CARB's public tester list (1 credentialed tester), 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 Mariposa County?
Yes. 1 listed business in Mariposa 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 Mariposa 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.