--- title: "Clean Truck Check Testers in Pittsburg, CA (5 listed)" description: "Find 5 CARB-credentialed Clean Truck Check testers in Pittsburg, Contra Costa County: 4 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services…" url: "https://ctcfinder.com/testers/contra-costa-county/pittsburg/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Pittsburg, CA 5 testing businesses in Pittsburg (Contra Costa County) are on CARB's public Clean Truck Check tester list (5 credentialed testers). 4 offer mobile testing, 2 do smoke opacity tests, 3 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 Pittsburg - **[Brothers](https://ctcfinder.com/tester/brothers-pittsburg/)** — 3 Shadelands Ct, Pittsburg, CA 94565 — (626) 814-5541. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Cristian Preza](https://ctcfinder.com/tester/cristian-preza-pittsburg/)** — Pittsburg, CA 94565 — (925) 446-9660. Services: not listed. - **[Jasbir Truck Repair](https://ctcfinder.com/tester/jasbir-truck-repair-pittsburg/)** — 1646 Birdhaven Way, Pittsburg, CA 94565 — (925) 864-2335. Services: mobile testing, OBD testing. - **[Joe Auto Smog](https://ctcfinder.com/tester/joe-auto-smog-pittsburg/)** — 2201 Harbor St Suite D, Pittsburg, CA 94565 — (925) 473-9630. Services: mobile testing, OBD testing, motorhome testing. - **[Opacity testing inc](https://ctcfinder.com/tester/opacity-testing-inc-pittsburg/)** — 2127 Sugartree Dr, Pittsburg, CA 94565 — (925) 597-2478. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[Amunique](https://ctcfinder.com/tester/amunique-bay-point/)** — 3628 Willow Pass Rd, Bay Point, CA 94565 — (925) 915-7888 — 1 mi. Services: mobile testing, OBD testing. - **[Karl Grothman](https://ctcfinder.com/tester/karl-grothman-concord/)** — Concord, CA 94521 — (925) 435-9674 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Autos International](https://ctcfinder.com/tester/autos-international-concord/)** — 2201 Commerce Ave, Concord, CA 94520 — (925) 676-0440 — 6 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[carbdieseltest.com](https://ctcfinder.com/tester/carbdieseltest-com-concord/)** — Concord, CA 94520 — (916) 538-7777 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Fnu Imran Ali](https://ctcfinder.com/tester/fnu-imran-ali-concord/)** — Concord, CA 94520 — (925) 849-2803 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Mobile Testing Golden State Emissions](https://ctcfinder.com/tester/mobile-testing-golden-state-emissions-concord/)** — 1650 Pine Street, Concord, CA 94520 — (925) 354-4370 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[A1 Stop Smog](https://ctcfinder.com/tester/a1-stop-smog-antioch/)** — 1810 Verne Roberts Cir, Antioch, CA 94509 — (925) 445-7875 — 6 mi. Services: OBD testing, motorhome testing. - **[Charlotte Larsen](https://ctcfinder.com/tester/charlotte-larsen-antioch/)** — Antioch, CA 94509 — (925) 374-2879 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Contra Costa Mobile Repair](https://ctcfinder.com/tester/contra-costa-mobile-repair-antioch/)** — 1915 Cavallo Rd, Antioch, CA 94509 — (925) 437-1397 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Drill Tech Drilling Shoring Inc.](https://ctcfinder.com/tester/drill-tech-drilling-shoring-inc-antioch/)** — 2200 Wymore Way, Antioch, CA 94509 — (510) 715-3737 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Habibullah Nazari](https://ctcfinder.com/tester/habibullah-nazari-antioch/)** — Antioch, CA 94509 — (925) 445-7319 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Miguel Rodriguez](https://ctcfinder.com/tester/miguel-rodriguez-antioch/)** — Antioch, CA 94509 — (925) 752-8831 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## 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 Pittsburg? CTC Finder lists 5 testing businesses in Pittsburg from CARB's public tester list (5 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 Pittsburg? Yes. 4 listed businesses in Pittsburg 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 Pittsburg? 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 - [Concord](https://ctcfinder.com/testers/contra-costa-county/concord/) — 7 listings, 6 mi - [Antioch](https://ctcfinder.com/testers/contra-costa-county/antioch/) — 11 listings, 7 mi - [Martinez](https://ctcfinder.com/testers/contra-costa-county/martinez/) — 7 listings, 13 mi - [Oakley](https://ctcfinder.com/testers/contra-costa-county/oakley/) — 9 listings, 13 mi - [Brentwood](https://ctcfinder.com/testers/contra-costa-county/brentwood/) — 3 listings, 14 mi - [Vallejo](https://ctcfinder.com/testers/solano-county/vallejo/) — 8 listings, 18 mi - [Fairfield](https://ctcfinder.com/testers/solano-county/fairfield/) — 11 listings, 19 mi - [Dublin](https://ctcfinder.com/testers/alameda-county/dublin/) — 4 listings, 20 mi - [San Pablo](https://ctcfinder.com/testers/contra-costa-county/san-pablo/) — 7 listings, 22 mi - [Oakland](https://ctcfinder.com/testers/alameda-county/oakland/) — 15 listings, 23 mi