--- title: "Clean Truck Check Testers in Colton, CA (15 listed)" description: "Find 15 CARB-credentialed Clean Truck Check testers in Colton, San Bernardino County: 13 offer mobile testing, 11 do smoke opacity tests. Phone numbers…" url: "https://ctcfinder.com/testers/san-bernardino-county/colton/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Colton, CA 15 testing businesses in Colton (San Bernardino County) are on CARB's public Clean Truck Check tester list (20 credentialed testers). 13 offer mobile testing, 11 do smoke opacity tests, 12 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. ## Testers in Colton - **[Clean Diesel Specialist - Coton](https://ctcfinder.com/tester/clean-diesel-specialist-coton-colton/)** — 310 Rexford St, Colton, CA 92324 — (909) 430-0018. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jose Talavera](https://ctcfinder.com/tester/jose-talavera-colton/)** — Colton, CA 92324 — (562) 857-4241. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Aaron Gutierrez](https://ctcfinder.com/tester/aaron-gutierrez-colton/)** — Colton, CA 92324 — (951) 241-5693. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Alan Hernandez](https://ctcfinder.com/tester/alan-hernandez-colton/)** — Colton, CA 92324 — (323) 841-4518. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[CDS](https://ctcfinder.com/tester/cds-colton/)** — 310 Rexford St, Colton, CA 92324 — (805) 833-1604. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Chris Lanning](https://ctcfinder.com/tester/chris-lanning-colton/)** — Colton, CA 92324 — (714) 719-7127. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Connie Silvia](https://ctcfinder.com/tester/connie-silvia-colton/)** — Colton, CA 92324 — (909) 206-9046. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Credentialed tester in Colton](https://ctcfinder.com/tester/credentialed-tester-in-colton-colton/)** — 2300 E Steel Rd, Colton, CA 92324 — (951) 230-8112. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Darrick Stone](https://ctcfinder.com/tester/darrick-stone-colton/)** — Colton, CA 92324 — (909) 746-7682. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Gentry General Engineering, Inc.](https://ctcfinder.com/tester/gentry-general-engineering-inc-colton/)** — 320 W Tropica Rancho Rd, Colton, CA 92324 — (909) 908-5313. Services: mobile testing, OBD testing, motorhome testing. - **[Inland Empire Fleet Maintenance, LLC.](https://ctcfinder.com/tester/inland-empire-fleet-maintenance-llc-colton/)** — 295 Hermosa Ave, Colton, CA 92324 — (909) 270-4328. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[John Thorpe](https://ctcfinder.com/tester/john-thorpe-colton/)** — Colton, CA 92324 — (209) 298-3552. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[La Cadena Smog Check](https://ctcfinder.com/tester/la-cadena-smog-check-colton/)** — 494 S La Cadena Dr, Colton, CA 92324 — (909) 771-4514. Services: mobile testing, OBD testing, motorhome testing. - **[Manuel Velasco](https://ctcfinder.com/tester/manuel-velasco-colton/)** — Colton, CA 92324 — (951) 288-5815. Services: not listed. - **[Margarita Reyes](https://ctcfinder.com/tester/margarita-reyes-colton/)** — Colton, CA 92324 — (909) 434-4347. Services: mobile testing. ## More testers within 20 miles - **[Aaron’s Diesel Pro](https://ctcfinder.com/tester/aarons-diesel-pro-riverside/)** — 200 W Big Springs Rd, Riverside, CA 92507 — (951) 201-6522 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Carb Compliant Solutions](https://ctcfinder.com/tester/carb-compliant-solutions-riverside/)** — 19871 Sunkissed Ridge Dr, Riverside, CA 92507 — (951) 547-9465 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[CCW](https://ctcfinder.com/tester/ccw-riverside/)** — 1863 Service Ct, Riverside, CA 92507 — (951) 684-9585 — 3 mi. Services: smoke opacity (non-OBD) testing. - **[Credentialed tester in Riverside](https://ctcfinder.com/tester/credentialed-tester-in-riverside-riverside/)** — 5053 La Mart Dr, Riverside, CA 92507 — (951) 594-5882 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[CSAI Auto Service](https://ctcfinder.com/tester/csai-auto-service-riverside/)** — 3001 Chicago Ave, Riverside, CA 92507 — (951) 858-7270 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Khaldoun Dridi](https://ctcfinder.com/tester/khaldoun-dridi-riverside/)** — Riverside, CA 92507 — (714) 781-9466 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Miguel Chavez](https://ctcfinder.com/tester/miguel-chavez-riverside/)** — Riverside, CA 92507 — (951) 403-3523 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Rf Mendoza smog check](https://ctcfinder.com/tester/rf-mendoza-smog-check-riverside/)** — 20623 Center St, Riverside, CA 92507 — (626) 989-1403 — 3 mi. Services: mobile testing, OBD testing. - **[Top Dawg Auto Repair](https://ctcfinder.com/tester/top-dawg-auto-repair-riverside/)** — 3700 Chicago Ave, Riverside, CA 92507 — (951) 545-6330 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Dion & Sons, Inc.](https://ctcfinder.com/tester/dion-and-sons-inc-loma-linda/)** — Loma Linda, CA 92354 — (909) 490-6860 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Inland Empire Clean Truck Check](https://ctcfinder.com/tester/inland-empire-clean-truck-check-moreno-valley/)** — 24125 Groven Ln, Moreno Valley, CA 92557 — (310) 948-5481 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[On-Site Truck Compliance](https://ctcfinder.com/tester/on-site-truck-compliance-moreno-valley/)** — 10180 Caribou Cir, Moreno Valley, CA 92557 — (840) 228-1456 — 4 mi. Services: mobile testing, OBD testing. ## Trucking in Colton Colton is crossed by I-10 and I-215 and close to the San Bernardino intermodal yard. 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. 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. ## Cost Typical published prices in California: OBD test $50–$135 per vehicle; smoke opacity test $190–$200. Prices are set by each tester. ## Frequently asked questions ### How many Clean Truck Check testers are in Colton? CTC Finder lists 15 testing businesses in Colton from CARB's public tester list (20 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 Colton? Yes. 13 listed businesses in Colton 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 Colton? 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/). ### How often does my truck need a Clean Truck Check test? Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). ## Nearby cities - [Bloomington](https://ctcfinder.com/testers/san-bernardino-county/bloomington/) — 8 listings, 6 mi - [Redlands](https://ctcfinder.com/testers/san-bernardino-county/redlands/) — 8 listings, 7 mi - [Moreno Valley](https://ctcfinder.com/testers/riverside-county/moreno-valley/) — 16 listings, 8 mi - [Rialto](https://ctcfinder.com/testers/san-bernardino-county/rialto/) — 18 listings, 8 mi - [San Bernardino](https://ctcfinder.com/testers/san-bernardino-county/san-bernardino/) — 29 listings, 9 mi - [Riverside](https://ctcfinder.com/testers/riverside-county/riverside/) — 48 listings, 9 mi - [Highland](https://ctcfinder.com/testers/san-bernardino-county/highland/) — 5 listings, 9 mi - [Jurupa Valley](https://ctcfinder.com/testers/riverside-county/jurupa-valley/) — 18 listings, 10 mi - [Fontana](https://ctcfinder.com/testers/san-bernardino-county/fontana/) — 49 listings, 11 mi - [Perris](https://ctcfinder.com/testers/riverside-county/perris/) — 18 listings, 15 mi