Clean Truck Check testers in Santa Clara County
79 testing businesses in Santa Clara County are on CARB's public tester list, in 12 cities. 67 (85%) offer mobile testing, 27 do smoke opacity tests and 51 test motorhomes.
Cities in Santa Clara
Other cities
East Palo Alto
-
Sunshine Transportation
- Mobile testing
- OBD test
- Motorhomes
Los Gatos
-
A.J.’s Mobile Truck Service
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
South Bay Mobile Smog
- Mobile testing
- OBD test
Palo Alto
-
Hengehold Trucks
- OBD test
- Motorhomes
San Martin
-
CA Truck Compliance Group
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Jim Acker
- Mobile testing
- OBD test
- Motorhomes
Sunnyvale
-
Smog Check Car
- OBD test
- Motorhomes
Trucking in Santa Clara
Santa Clara County has the largest number of listed testers in the Bay Area.
Frequently asked questions
How many Clean Truck Check testers are in Santa Clara County?
CTC Finder lists 79 testing businesses in Santa Clara County from CARB's public tester list (81 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 Santa Clara County?
Yes. 67 listed businesses in Santa Clara 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 Santa Clara 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.