--- title: "Clean Truck Check Testers in San Pablo, CA (7 listed)" description: "Find 7 CARB-credentialed Clean Truck Check testers in San Pablo, Contra Costa County: 7 offer mobile testing, 5 do smoke opacity tests. Phone numbers, services…" url: "https://ctcfinder.com/testers/contra-costa-county/san-pablo/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in San Pablo, CA 7 testing businesses in San Pablo (Contra Costa County) are on CARB's public Clean Truck Check tester list (7 credentialed testers). 7 offer mobile testing, 5 do smoke opacity tests, 6 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 San Pablo - **[Clean Truck Check](https://ctcfinder.com/tester/clean-truck-check-san-pablo/)** — 1371 23rd St, San Pablo, CA 94806 — (510) 504-7599. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[El Amigo Smog](https://ctcfinder.com/tester/el-amigo-smog-san-pablo/)** — 3024 Giant Rd, San Pablo, CA 94806 — (510) 938-3344. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jonathan Sordine](https://ctcfinder.com/tester/jonathan-sordine-san-pablo/)** — San Pablo, CA 94806 — (510) 241-6894. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Moiz Abdul](https://ctcfinder.com/tester/moiz-abdul-san-pablo/)** — San Pablo, CA 94806 — (916) 508-6393. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Natha &. Yuli Inc.](https://ctcfinder.com/tester/natha-and-yuli-inc-san-pablo/)** — 980 Stanton Ave, San Pablo, CA 94806 — (510) 815-0030. Services: mobile testing, OBD testing. - **[Semper Mobile Solutions](https://ctcfinder.com/tester/semper-mobile-solutions-san-pablo/)** — 1000 Lake St, San Pablo, CA 94806 — (650) 201-6734. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Sordini Services](https://ctcfinder.com/tester/sordini-services-san-pablo/)** — 3400 Richmond Pkwy, San Pablo, CA 94806 — (510) 660-7271. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Trucking Inc](https://ctcfinder.com/tester/trucking-inc-richmond/)** — 2828 Gonzaga Ave, Richmond, CA 94806 — (209) 737-3137 — 1 mi. Services: mobile testing. - **[Ba Truck Smog](https://ctcfinder.com/tester/ba-truck-smog-richmond/)** — 400 W Gertrude Ave, Richmond, CA 94801 — (707) 731-3411 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Ozden Auto Services Smog and Clean Truck Check](https://ctcfinder.com/tester/ozden-auto-services-smog-and-clean-truck-check-richmond/)** — 864 23rd St, Richmond, CA 94804 — (510) 590-2004 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Hercules CTC Clean Truck Check & Bit Inspection LL](https://ctcfinder.com/tester/hercules-ctc-clean-truck-check-and-bit-inspection-ll-hercules/)** — 205 Ridgeview Ter, Hercules, CA 94547 — (510) 375-2397 — 5 mi. Services: mobile testing, OBD testing. - **[Michael Siverson](https://ctcfinder.com/tester/michael-siverson-rodeo/)** — Rodeo, CA 94572 — (510) 672-1557 — 6 mi. Services: mobile testing, OBD testing. - **[Michael Milat](https://ctcfinder.com/tester/michael-milat-berkeley/)** — Berkeley, CA 94710 — (510) 283-7727 — 8 mi. Services: mobile testing, OBD testing. - **[Redwood Engineering](https://ctcfinder.com/tester/redwood-engineering-belvedere-tiburon/)** — Belvedere Tiburon, CA 94920 — (510) 314-9605 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Days Smog& DMV Registration Services](https://ctcfinder.com/tester/days-smog-and-dmv-registration-services-vallejo/)** — 1624 Broadway St, Vallejo, CA 94590 — (707) 997-0420 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Touch Trucking LLC](https://ctcfinder.com/tester/touch-trucking-llc-vallejo/)** — 301 Greenfield Ave, Vallejo, CA 94590 — (510) 496-1005 — 9 mi. Services: mobile testing, OBD testing. - **[Vallejo Smog Dog](https://ctcfinder.com/tester/vallejo-smog-dog-vallejo/)** — 1921 Sonoma Blvd, Vallejo, CA 94590 — (707) 557-7664 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[CD & Power](https://ctcfinder.com/tester/cd-and-power-martinez/)** — 150 Nardi Ln, Martinez, CA 94553 — (925) 387-9600 — 10 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Guys Smog Inc](https://ctcfinder.com/tester/guys-smog-inc-martinez/)** — 906 Alhambra Ave, Martinez, CA 94553 — (925) 285-9698 — 10 mi. Services: mobile testing, 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 San Pablo? CTC Finder lists 7 testing businesses in San Pablo 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 San Pablo? Yes. 7 listed businesses in San Pablo 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 San Pablo? 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 - [Richmond](https://ctcfinder.com/testers/contra-costa-county/richmond/) — 3 listings, 2 mi - [Martinez](https://ctcfinder.com/testers/contra-costa-county/martinez/) — 7 listings, 10 mi - [Vallejo](https://ctcfinder.com/testers/solano-county/vallejo/) — 8 listings, 11 mi - [Oakland](https://ctcfinder.com/testers/alameda-county/oakland/) — 15 listings, 15 mi - [San Francisco](https://ctcfinder.com/testers/san-francisco-county/san-francisco/) — 7 listings, 16 mi - [Concord](https://ctcfinder.com/testers/contra-costa-county/concord/) — 7 listings, 17 mi - [Sonoma](https://ctcfinder.com/testers/sonoma-county/sonoma/) — 5 listings, 20 mi - [Daly City](https://ctcfinder.com/testers/san-mateo-county/daly-city/) — 4 listings, 21 mi - [San Leandro](https://ctcfinder.com/testers/alameda-county/san-leandro/) — 8 listings, 21 mi - [Pittsburg](https://ctcfinder.com/testers/contra-costa-county/pittsburg/) — 5 listings, 22 mi