Clean Truck Check testers in San Bernardino County
277 testing businesses in San Bernardino County are on CARB's public tester list, in 30 cities. 243 (88%) offer mobile testing, 98 do smoke opacity tests and 182 test motorhomes.
Cities in San Bernardino
- Fontana 49
- Ontario 31
- San Bernardino 29
- Hesperia 20
- Rancho Cucamonga 18
- Rialto 18
- Colton 15
- Apple Valley 11
- Chino 9
- Victorville 9
- Bloomington 8
- Redlands 8
- Yucaipa 8
- Upland 7
- Highland 5
- Barstow 4
- Oak Hills 4
- Adelanto 3
- Montclair 3
- Phelan 3
Other cities
Big Bear City
-
Bbccsd
- OBD test
-
Richard Swedberg
- Mobile testing
- OBD test
- Motorhomes
Joshua Tree
-
Hookers Testing
- Mobile testing
- OBD test
- Motorhomes
Loma Linda
-
Dion & Sons, Inc.
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Lucerne Valley
-
Chris Hert
- OBD test
-
Reliable Roadside Repair
- Mobile testing
- OBD test
- Motorhomes
Mentone
-
Mikes Service Center
- Mobile testing
- OBD test
- Motorhomes
Muscoy
-
On The Go
- Mobile testing
- OBD test
Newberry Springs
-
MP Express
- Mobile testing
- OBD test
Pinon Hills
-
Landmax Services LLC
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Plan b auto repair
- Mobile testing
- OBD test
Twentynine Palms
-
Ryan Weber
- Mobile testing
- OBD test
Yucca Valley
-
Bill's Diesel
- OBD test
- Motorhomes
-
Perry's Performance
- Mobile testing
- OBD test
- Motorhomes
Trucking in San Bernardino
San Bernardino County covers most of the Inland Empire warehouse belt (Fontana, Ontario, Rialto, San Bernardino) and the High Desert along I-15. The Inland Empire holds roughly a billion square feet of warehouse space (Pitzer College estimate), so local fleets and owner-operators run a high volume of tests. Mobile testers who visit distribution centers and truck yards are common here.
Frequently asked questions
How many Clean Truck Check testers are in San Bernardino County?
CTC Finder lists 277 testing businesses in San Bernardino County from CARB's public tester list (300 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 Bernardino County?
Yes. 243 listed businesses in San Bernardino 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 Bernardino 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.