--- title: "Clean Truck Check Testers in Tustin, CA (3 listed)" description: "Find 3 CARB-credentialed Clean Truck Check testers in Tustin, Orange County: 3 offer mobile testing, 1 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/orange-county/tustin/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Tustin, CA 3 testing businesses in Tustin (Orange County) are on CARB's public Clean Truck Check tester list (3 credentialed testers). 3 offer mobile testing, 1 do smoke opacity tests, 1 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 Tustin - **[CGM Calibrations](https://ctcfinder.com/tester/cgm-calibrations-tustin/)** — Tustin, CA 92782 — (714) 393-1750. Services: mobile testing, OBD testing. - **[Joey Chuop](https://ctcfinder.com/tester/joey-chuop-tustin/)** — Tustin, CA 92780 — (714) 724-5039. Services: mobile testing, OBD testing. - **[Van Nguyen](https://ctcfinder.com/tester/van-nguyen-tustin/)** — Tustin, CA 92780 — (714) 397-8025. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[Beryl Technologies l l c](https://ctcfinder.com/tester/beryl-technologies-l-l-c-santa-ana/)** — 1640 E Edinger Ave Suite L, Santa Ana, CA 92705 — (949) 413-2063 — 3 mi. Services: smoke opacity (non-OBD) testing. - **[Diesel Warrior LLC](https://ctcfinder.com/tester/diesel-warrior-llc-santa-ana/)** — 2814 Roswell St, Santa Ana, CA 92705 — (714) 831-9649 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Flex A Tech Mobile](https://ctcfinder.com/tester/flex-a-tech-mobile-santa-ana/)** — 2324 Franzen Ave, Santa Ana, CA 92705 — (714) 866-6546 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[THE SMOKE DETECTORS - Mobile Service Only](https://ctcfinder.com/tester/the-smoke-detectors-mobile-service-only-santa-ana/)** — 2313 E Avalon Ave, Santa Ana, CA 92705 — (714) 785-9911 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Yovanni Nuno](https://ctcfinder.com/tester/yovanni-nuno-santa-ana/)** — Santa Ana, CA 92705 — (562) 314-6850 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Credentialed tester in Santa Ana](https://ctcfinder.com/tester/credentialed-tester-in-santa-ana-santa-ana/)** — 484 Porter St, Santa Ana, CA 92701 — (714) 717-4738 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Santa Ana Smog Repair Inc](https://ctcfinder.com/tester/santa-ana-smog-repair-inc-santa-ana/)** — 123 McClay St, Santa Ana, CA 92701 — (949) 510-0919 — 3 mi. Services: OBD testing, motorhome testing. - **[Toms Truck Center](https://ctcfinder.com/tester/toms-truck-center-santa-ana/)** — 909 N Grand Ave, Santa Ana, CA 92701 — (714) 338-6030 — 3 mi. Services: OBD testing, smoke opacity (non-OBD) testing. - **[Toms Truck Center-Oc](https://ctcfinder.com/tester/toms-truck-center-oc-santa-ana/)** — 909 N Grand Ave, Santa Ana, CA 92701 — (800) 638-1015 — 3 mi. Services: OBD testing, smoke opacity (non-OBD) testing. - **[Credentialed tester in Irvine](https://ctcfinder.com/tester/credentialed-tester-in-irvine-irvine/)** — 2160 Barranca Pkwy, Irvine, CA 92606 — (424) 321-6044 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Abdel jalal Lazim](https://ctcfinder.com/tester/abdel-jalal-lazim-irvine/)** — Irvine, CA 92620 — (949) 344-0124 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[T & R Automotive Repair](https://ctcfinder.com/tester/t-and-r-automotive-repair-santa-ana/)** — 1617 S Main St, Santa Ana, CA 92707 — (714) 331-7717 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in Tustin 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 Tustin? CTC Finder lists 3 testing businesses in Tustin from CARB's public tester list (3 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 Tustin? Yes. 3 listed businesses in Tustin 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 Tustin? 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 - [Santa Ana](https://ctcfinder.com/testers/orange-county/santa-ana/) — 14 listings, 2 mi - [Irvine](https://ctcfinder.com/testers/orange-county/irvine/) — 7 listings, 4 mi - [Orange](https://ctcfinder.com/testers/orange-county/orange/) — 14 listings, 5 mi - [Costa Mesa](https://ctcfinder.com/testers/orange-county/costa-mesa/) — 6 listings, 8 mi - [Fountain Valley](https://ctcfinder.com/testers/orange-county/fountain-valley/) — 4 listings, 8 mi - [Garden Grove](https://ctcfinder.com/testers/orange-county/garden-grove/) — 10 listings, 9 mi - [Anaheim](https://ctcfinder.com/testers/orange-county/anaheim/) — 25 listings, 9 mi - [Lake Forest](https://ctcfinder.com/testers/orange-county/lake-forest/) — 3 listings, 10 mi - [Placentia](https://ctcfinder.com/testers/orange-county/placentia/) — 4 listings, 10 mi - [Westminster](https://ctcfinder.com/testers/orange-county/westminster/) — 7 listings, 11 mi