--- title: "Clean Truck Check Testers in Torrance, CA (11 listed)" description: "Find 11 CARB-credentialed Clean Truck Check testers in Torrance, Los Angeles County: 11 offer mobile testing, 6 do smoke opacity tests. Phone numbers, services…" url: "https://ctcfinder.com/testers/los-angeles-county/torrance/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Torrance, CA 11 testing businesses in Torrance (Los Angeles County) are on CARB's public Clean Truck Check tester list (12 credentialed testers). 11 offer mobile testing, 6 do smoke opacity tests, 8 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 Torrance - **[IJN mobile diesel](https://ctcfinder.com/tester/ijn-mobile-diesel-torrance/)** — 3649 Garnet Street, Torrance, CA 90503 — (424) 318-7780. Services: mobile testing, OBD testing, motorhome testing. - **[Anguiano clean truck](https://ctcfinder.com/tester/anguiano-clean-truck-torrance/)** — 21727 S Western Ave, Torrance, CA 90501 — (310) 222-8622. Services: mobile testing, OBD testing, motorhome testing. - **[Christopher Hernandez](https://ctcfinder.com/tester/christopher-hernandez-torrance/)** — Torrance, CA 90504 — (310) 505-8684. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Curt's Mobile Service Inc](https://ctcfinder.com/tester/curts-mobile-service-inc-torrance/)** — 3327 W 188th St, Torrance, CA 90504 — (310) 505-9681. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[DF Systems](https://ctcfinder.com/tester/df-systems-torrance/)** — 2463 W 208th St Suite 203, Torrance, CA 90501 — (213) 309-4449. Services: mobile testing, OBD testing. - **[Eddy Morales](https://ctcfinder.com/tester/eddy-morales-torrance/)** — Torrance, CA 90503 — (310) 892-3697. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Martinez CTC](https://ctcfinder.com/tester/martinez-ctc-torrance/)** — 3335 Artesia Blvd #44, Torrance, CA 90504 — (424) 475-1961. Services: mobile testing, OBD testing. - **[MnKEIS](https://ctcfinder.com/tester/mnkeis-torrance/)** — 1647 W 214th St, Torrance, CA 90501 — (310) 809-2791. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Myosha Lair](https://ctcfinder.com/tester/myosha-lair-torrance/)** — Torrance, CA 90501 — (424) 287-8303. Services: mobile testing, OBD testing, motorhome testing. - **[Rhiannon Grageda](https://ctcfinder.com/tester/rhiannon-grageda-torrance/)** — Torrance, CA 90501 — (424) 772-8948. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Torrance Transit](https://ctcfinder.com/tester/torrance-transit-torrance/)** — Torrance, CA 90503 — (626) 488-2502. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. ## More testers within 20 miles - **[Carlos Martinez](https://ctcfinder.com/tester/carlos-martinez-redondo-beach/)** — Redondo Beach, CA 90278 — (310) 906-0988 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Los Angeles Clean Truck Check](https://ctcfinder.com/tester/los-angeles-clean-truck-check-redondo-beach/)** — 2618 184th St, Redondo Beach, CA 90278 — (310) 989-1140 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[A1 Smog Test Center](https://ctcfinder.com/tester/a1-smog-test-center-lawndale/)** — 4135 Redondo beach blvd, Lawndale, CA 90260 — (310) 400-4037 — 3 mi. Services: OBD testing. - **[A1 Smog Test Center](https://ctcfinder.com/tester/a1-smog-test-center-lawndale-2/)** — 4135 Redondo Beach Blvd 1008 1/2 E 18th st, Lawndale, CA 90260 — (213) 908-3478 — 3 mi. Services: mobile testing, OBD testing. - **[CTC Mobile Pro](https://ctcfinder.com/tester/ctc-mobile-pro-lawndale/)** — 4571 W 168th St, Lawndale, CA 90260 — (424) 456-0589 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Tocs Vehicle Registration Service](https://ctcfinder.com/tester/tocs-vehicle-registration-service-lawndale/)** — 14623 Hawthorne Blvd Suite 106, Lawndale, CA 90260 — (310) 619-7656 — 3 mi. Services: mobile testing, OBD testing. - **[Brothers Fleet Service, Inc](https://ctcfinder.com/tester/brothers-fleet-service-inc-gardena/)** — 16502 S Broadway, Gardena, CA 90248 — (310) 930-8451 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[M.T. Mobile Field Services](https://ctcfinder.com/tester/m-t-mobile-field-services-gardena/)** — 16323 S Broadway, Gardena, CA 90248 — (310) 515-5009 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Sergio Garcia](https://ctcfinder.com/tester/sergio-garcia-gardena/)** — Gardena, CA 90248 — (310) 502-5229 — 4 mi. Services: mobile testing. - **[The Family Smog Check](https://ctcfinder.com/tester/the-family-smog-check-gardena/)** — 314 W Redondo Beach Blvd, Gardena, CA 90248 — (310) 365-9919 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. - **[C1 Testing](https://ctcfinder.com/tester/c1-testing-harbor-city/)** — 1404 257th St, Harbor City, CA 90710 — (424) 404-3703 — 4 mi. Services: mobile testing, OBD testing. - **[A & A Smog Away](https://ctcfinder.com/tester/a-and-a-smog-away-lomita/)** — 1913 Pacific Coast Highway, Lomita, CA 90717 — (714) 396-7181 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in Torrance Los Angeles County has more listed testers than any other county. Seaports and intermodal railyards, including the Ports of Los Angeles and Long Beach, must verify Clean Truck Check compliance at entry or log non-compliant trucks (CARB). ## 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 Torrance? CTC Finder lists 11 testing businesses in Torrance from CARB's public tester list (12 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 Torrance? Yes. 11 listed businesses in Torrance 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 Torrance? 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 - [Lawndale](https://ctcfinder.com/testers/los-angeles-county/lawndale/) — 4 listings, 3 mi - [Gardena](https://ctcfinder.com/testers/los-angeles-county/gardena/) — 7 listings, 4 mi - [Carson](https://ctcfinder.com/testers/los-angeles-county/carson/) — 6 listings, 4 mi - [Hawthorne](https://ctcfinder.com/testers/los-angeles-county/hawthorne/) — 5 listings, 5 mi - [Wilmington](https://ctcfinder.com/testers/los-angeles-county/wilmington/) — 12 listings, 6 mi - [Inglewood](https://ctcfinder.com/testers/los-angeles-county/inglewood/) — 4 listings, 7 mi - [Compton](https://ctcfinder.com/testers/los-angeles-county/compton/) — 11 listings, 7 mi - [Long Beach](https://ctcfinder.com/testers/los-angeles-county/long-beach/) — 26 listings, 9 mi - [Lynwood](https://ctcfinder.com/testers/los-angeles-county/lynwood/) — 6 listings, 9 mi - [Signal Hill](https://ctcfinder.com/testers/los-angeles-county/signal-hill/) — 3 listings, 10 mi