--- title: "Clean Truck Check Testers in San Bernardino County, CA (277)" description: "277 CARB-credentialed Clean Truck Check testers in San Bernardino County, California, across 30 cities. 243 offer mobile testing. Search by city, see phone…" url: "https://ctcfinder.com/testers/san-bernardino-county/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in San Bernardino County, California 277 testing businesses in 30 cities; 243 offer mobile testing, 98 do smoke opacity tests, 182 test motorhomes. > CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester. ## City pages - [Fontana](https://ctcfinder.com/testers/san-bernardino-county/fontana/) — 49 listings - [Ontario](https://ctcfinder.com/testers/san-bernardino-county/ontario/) — 31 listings - [San Bernardino](https://ctcfinder.com/testers/san-bernardino-county/san-bernardino/) — 29 listings - [Hesperia](https://ctcfinder.com/testers/san-bernardino-county/hesperia/) — 20 listings - [Rancho Cucamonga](https://ctcfinder.com/testers/san-bernardino-county/rancho-cucamonga/) — 18 listings - [Rialto](https://ctcfinder.com/testers/san-bernardino-county/rialto/) — 18 listings - [Colton](https://ctcfinder.com/testers/san-bernardino-county/colton/) — 15 listings - [Apple Valley](https://ctcfinder.com/testers/san-bernardino-county/apple-valley/) — 11 listings - [Chino](https://ctcfinder.com/testers/san-bernardino-county/chino/) — 9 listings - [Victorville](https://ctcfinder.com/testers/san-bernardino-county/victorville/) — 9 listings - [Bloomington](https://ctcfinder.com/testers/san-bernardino-county/bloomington/) — 8 listings - [Redlands](https://ctcfinder.com/testers/san-bernardino-county/redlands/) — 8 listings - [Yucaipa](https://ctcfinder.com/testers/san-bernardino-county/yucaipa/) — 8 listings - [Upland](https://ctcfinder.com/testers/san-bernardino-county/upland/) — 7 listings - [Highland](https://ctcfinder.com/testers/san-bernardino-county/highland/) — 5 listings - [Barstow](https://ctcfinder.com/testers/san-bernardino-county/barstow/) — 4 listings - [Oak Hills](https://ctcfinder.com/testers/san-bernardino-county/oak-hills/) — 4 listings - [Adelanto](https://ctcfinder.com/testers/san-bernardino-county/adelanto/) — 3 listings - [Montclair](https://ctcfinder.com/testers/san-bernardino-county/montclair/) — 3 listings - [Phelan](https://ctcfinder.com/testers/san-bernardino-county/phelan/) — 3 listings ## Big Bear City - **[Bbccsd](https://ctcfinder.com/tester/bbccsd-big-bear-city/)** — 193 E Big Bear Blvd, Big Bear City, CA 92314 — (909) 567-5913. Services: OBD testing. - **[Richard Swedberg](https://ctcfinder.com/tester/richard-swedberg-big-bear-city/)** — Big Bear City, CA 92314 — (909) 205-9046. Services: mobile testing, OBD testing, motorhome testing. ## Joshua Tree - **[Hookers Testing](https://ctcfinder.com/tester/hookers-testing-joshua-tree/)** — 60819 Pueblo Trl, Joshua Tree, CA 92252 — (909) 838-4841. Services: mobile testing, OBD testing, motorhome testing. ## Loma Linda - **[Dion & Sons, Inc.](https://ctcfinder.com/tester/dion-and-sons-inc-loma-linda/)** — Loma Linda, CA 92354 — (909) 490-6860. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## Lucerne Valley - **[Chris Hert](https://ctcfinder.com/tester/chris-hert-lucerne-valley/)** — Lucerne Valley, CA 92356 — (760) 985-7062. Services: OBD testing. - **[Reliable Roadside Repair](https://ctcfinder.com/tester/reliable-roadside-repair-lucerne-valley/)** — 10330 Paz Dr, Lucerne Valley, CA 92356 — (760) 646-6566. Services: mobile testing, OBD testing, motorhome testing. ## Mentone - **[Mikes Service Center](https://ctcfinder.com/tester/mikes-service-center-mentone/)** — 1759 Mentone Blvd, Mentone, CA 92359 — (909) 794-5600. Services: mobile testing, OBD testing, motorhome testing. ## Muscoy - **[On The Go](https://ctcfinder.com/tester/on-the-go-muscoy/)** — Muscoy, CA 92407 — (909) 520-6797. Services: mobile testing, OBD testing. ## Newberry Springs - **[MP Express](https://ctcfinder.com/tester/mp-express-newberry-springs/)** — 45575 Mendocino Rd, Newberry Springs, CA 92365 — (760) 818-9095. Services: mobile testing, OBD testing. ## Pinon Hills - **[Landmax Services LLC](https://ctcfinder.com/tester/landmax-services-llc-pinon-hills/)** — 515 Palmdale Rd, Pinon Hills, CA 92372 — (775) 990-2036. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Plan b auto repair](https://ctcfinder.com/tester/plan-b-auto-repair-pinon-hills/)** — 1820 Danbury Rd, Pinon Hills, CA 92372 — (626) 664-4558. Services: mobile testing, OBD testing. ## Twentynine Palms - **[Ryan Weber](https://ctcfinder.com/tester/ryan-weber-twentynine-palms/)** — Twentynine Palms, CA 92277 — (760) 401-1458. Services: mobile testing, OBD testing. ## Yucca Valley - **[Bill's Diesel](https://ctcfinder.com/tester/bills-diesel-yucca-valley/)** — 4695 Old Woman Springs Rd, Yucca Valley, CA 92284 — (760) 329-1000. Services: OBD testing, motorhome testing. - **[Perry's Performance](https://ctcfinder.com/tester/perrys-performance-yucca-valley/)** — 7606 Victoria Ave, Yucca Valley, CA 92284 — (951) 440-0347. Services: mobile testing, OBD testing, motorhome testing. ## 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](https://ctcfinder.com/guide/cost/).