Clean Truck Check testers in San Luis Obispo County
25 testing businesses in San Luis Obispo County are on CARB's public tester list, in 11 cities. 22 (88%) offer mobile testing, 9 do smoke opacity tests and 21 test motorhomes.
Cities in San Luis Obispo
Other cities
Arroyo Grande
-
Eduardo Garibay
- Mobile testing
- OBD test
Morro Bay
-
MAFFEIS Automotive
- OBD test
- Motorhomes
Oceano
-
Beach Front Auto & Smog
- OBD test
- Motorhomes
Pismo Beach
-
Miller's 76
- OBD test
- Smoke opacity
- Motorhomes
Santa Margarita
-
Connor Whiteford
- Mobile testing
- OBD test
- Motorhomes
Shandon
-
Carroll's Automotive Repair
- Mobile testing
- OBD test
- Motorhomes
Templeton
-
Mtech Unlimited
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Frequently asked questions
How many Clean Truck Check testers are in San Luis Obispo County?
CTC Finder lists 25 testing businesses in San Luis Obispo County from CARB's public tester list (25 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 San Luis Obispo County?
Yes. 22 listed businesses in San Luis Obispo 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 San Luis Obispo 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.