--- title: "Clean Truck Check Testers in Westminster, CA (7 listed)" description: "Find 7 CARB-credentialed Clean Truck Check testers in Westminster, Orange County: 7 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/orange-county/westminster/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Westminster, CA 7 testing businesses in Westminster (Orange County) are on CARB's public Clean Truck Check tester list (7 credentialed testers). 7 offer mobile testing, 2 do smoke opacity tests, 4 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 Westminster - **[Clean Carb Experts](https://ctcfinder.com/tester/clean-carb-experts-westminster/)** — 13872 Iowa St, Westminster, CA 92683 — (714) 356-8410. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Dennis Luu](https://ctcfinder.com/tester/dennis-luu-westminster/)** — Westminster, CA 92683 — (714) 705-9984. Services: mobile testing, OBD testing, motorhome testing. - **[Eladio Diaz](https://ctcfinder.com/tester/eladio-diaz-westminster/)** — Westminster, CA 92683 — (714) 341-7955. Services: mobile testing, OBD testing. - **[Ethan Nguyen](https://ctcfinder.com/tester/ethan-nguyen-westminster/)** — Westminster, CA 92683 — (714) 592-4580. Services: mobile testing, OBD testing, motorhome testing. - **[Global Auto Tires](https://ctcfinder.com/tester/global-auto-tires-westminster/)** — 5541 Vallecito Dr, Westminster, CA 92683 — (949) 339-7031. Services: mobile testing, OBD testing. - **[Hpcleantruckcheck LLC](https://ctcfinder.com/tester/hpcleantruckcheck-llc-westminster/)** — 15132 Eden St, Westminster, CA 92683 — (714) 794-9613. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Independent](https://ctcfinder.com/tester/independent-westminster/)** — 9301 Bevan Ave, Westminster, CA 92683 — (714) 657-5896. Services: mobile testing, OBD testing. ## More testers within 20 miles - **[David Eduardo](https://ctcfinder.com/tester/david-eduardo-garden-grove/)** — Garden Grove, CA 92844 — (714) 717-4738 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Smog Environmental](https://ctcfinder.com/tester/smog-environmental-garden-grove/)** — Garden Grove, CA 92844 — (925) 234-0494 — 2 mi. Services: mobile testing, OBD testing. - **[Clean Truck Check Authority](https://ctcfinder.com/tester/clean-truck-check-authority-huntington-beach/)** — 16861 Beach Blvd, Huntington Beach, CA 92647 — (714) 603-3839 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Diesel emission testing one](https://ctcfinder.com/tester/diesel-emission-testing-one-huntington-beach/)** — 7021 Betty Dr, Huntington Beach, CA 92647 — (760) 905-1418 — 2 mi. Services: mobile testing, OBD testing. - **[Easy Smog](https://ctcfinder.com/tester/easy-smog-huntington-beach/)** — 17922 Gothard St Suite A 5, Huntington Beach, CA 92647 — (661) 718-7307 — 2 mi. Services: mobile testing, OBD testing, motorhome testing. - **[James Lau](https://ctcfinder.com/tester/james-lau-huntington-beach/)** — Huntington Beach, CA 92647 — (714) 756-9063 — 2 mi. Services: OBD testing, smoke opacity (non-OBD) testing. - **[Auto Research & Clean Truck Check](https://ctcfinder.com/tester/auto-research-and-clean-truck-check-garden-grove/)** — 7527 Park Ave, Garden Grove, CA 92841 — (714) 728-8228 — 2 mi. Services: mobile testing, OBD testing. - **[LosAngeles, LongBeach Port mobile service](https://ctcfinder.com/tester/losangeles-longbeach-port-mobile-service-garden-grove/)** — 12242 Fieldgate St, Garden Grove, CA 92841 — (213) 400-7777 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Tu Nguyen](https://ctcfinder.com/tester/tu-nguyen-garden-grove/)** — Garden Grove, CA 92841 — (714) 312-9480 — 2 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Smog and More](https://ctcfinder.com/tester/smog-and-more-stanton/)** — 10711 Beach Blvd, Stanton, CA 90680 — (714) 995-7591 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[TTS Engineering](https://ctcfinder.com/tester/tts-engineering-stanton/)** — Stanton, CA 90680 — (949) 942-0556 — 3 mi. Services: mobile testing, OBD testing. - **[CNV smog check](https://ctcfinder.com/tester/cnv-smog-check-garden-grove/)** — 13182 Garden Grove Blvd, Garden Grove, CA 92843 — (714) 566-5817 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in Westminster Orange County testers serve industrial areas in Anaheim, Santa Ana and Irvine, and many travel to Long Beach port customers. ## 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 Westminster? CTC Finder lists 7 testing businesses in Westminster from CARB's public tester list (7 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 Westminster? Yes. 7 listed businesses in Westminster 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 Westminster? 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 - [Garden Grove](https://ctcfinder.com/testers/orange-county/garden-grove/) — 10 listings, 3 mi - [Fountain Valley](https://ctcfinder.com/testers/orange-county/fountain-valley/) — 4 listings, 4 mi - [Huntington Beach](https://ctcfinder.com/testers/orange-county/huntington-beach/) — 13 listings, 4 mi - [Buena Park](https://ctcfinder.com/testers/orange-county/buena-park/) — 9 listings, 7 mi - [Anaheim](https://ctcfinder.com/testers/orange-county/anaheim/) — 25 listings, 7 mi - [Costa Mesa](https://ctcfinder.com/testers/orange-county/costa-mesa/) — 6 listings, 8 mi - [Santa Ana](https://ctcfinder.com/testers/orange-county/santa-ana/) — 14 listings, 9 mi - [Lakewood](https://ctcfinder.com/testers/los-angeles-county/lakewood/) — 4 listings, 10 mi - [Fullerton](https://ctcfinder.com/testers/orange-county/fullerton/) — 8 listings, 10 mi - [Orange](https://ctcfinder.com/testers/orange-county/orange/) — 14 listings, 10 mi