--- title: "Clean Truck Check Testers in Woodland, CA (12 listed)" description: "Find 12 CARB-credentialed Clean Truck Check testers in Woodland, Yolo County: 11 offer mobile testing, 10 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/yolo-county/woodland/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Woodland, CA 12 testing businesses in Woodland (Yolo County) are on CARB's public Clean Truck Check tester list (15 credentialed testers). 11 offer mobile testing, 10 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 Woodland - **[Danny Boys](https://ctcfinder.com/tester/danny-boys-woodland/)** — Woodland, CA 95776 — (530) 867-0231. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Homeland Fleet Services](https://ctcfinder.com/tester/homeland-fleet-services-woodland/)** — 14958 County Road 100B, Woodland, CA 95776 — (888) 860-2195. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Best Smog](https://ctcfinder.com/tester/best-smog-woodland/)** — 315 East St, Woodland, CA 95776 — (530) 312-7780. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[BusWest](https://ctcfinder.com/tester/buswest-woodland/)** — 210 N East St, Woodland, CA 95776 — (530) 702-9339. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Capital City Diesel Inspection](https://ctcfinder.com/tester/capital-city-diesel-inspection-woodland/)** — 1296 E Gibson Rd, Woodland, CA 95776 — (916) 538-7777. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Carlos Salas](https://ctcfinder.com/tester/carlos-salas-woodland/)** — Woodland, CA 95776 — (530) 537-6759. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Joshua Jager](https://ctcfinder.com/tester/joshua-jager-woodland/)** — Woodland, CA 95776 — (530) 383-5325. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Paul Mendoza](https://ctcfinder.com/tester/paul-mendoza-woodland/)** — Woodland, CA 95695 — (530) 514-5441. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Sara Ludden](https://ctcfinder.com/tester/sara-ludden-woodland/)** — Woodland, CA 95776 — (530) 662-7373. Services: mobile testing, OBD testing. - **[St Francis Electric](https://ctcfinder.com/tester/st-francis-electric-woodland/)** — 341 Industrial Way, Woodland, CA 95776 — (510) 760-9364. Services: OBD testing, smoke opacity (non-OBD) testing. - **[Vadim Yev CAPITAL CITY DIESEL INSPECTIONS](https://ctcfinder.com/tester/vadim-yev-capital-city-diesel-inspections-woodland/)** — 10 West Main St, Woodland, CA 95695 — (916) 538-7777. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Yolo Smog](https://ctcfinder.com/tester/yolo-smog-woodland/)** — 374 W Main St, Woodland, CA 95695 — (530) 383-9330. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Quickpass carb check](https://ctcfinder.com/tester/quickpass-carb-check-sacramento/)** — 7430 19th St, Sacramento, CA 95691 — (415) 261-2600 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[BH Auto Service LLC](https://ctcfinder.com/tester/bh-auto-service-llc-west-sacramento/)** — 746 Glide Ave, West Sacramento, CA 95691 — (916) 239-5707 — 9 mi. Services: OBD testing. - **[Bryan Gomez](https://ctcfinder.com/tester/bryan-gomez-west-sacramento/)** — West Sacramento, CA 95691 — (916) 820-2882 — 9 mi. Services: OBD testing. - **[Bryan Moore](https://ctcfinder.com/tester/bryan-moore-west-sacramento/)** — West Sacramento, CA 95691 — (530) 682-2458 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Caietti's Truck Repair](https://ctcfinder.com/tester/caiettis-truck-repair-west-sacramento/)** — 404 Harbor Blvd, West Sacramento, CA 95691 — (916) 616-1073 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[carbdieseltest.com](https://ctcfinder.com/tester/carbdieseltest-com-west-sacramento/)** — West Sacramento, CA 95691 — (916) 538-7777 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Certified Smoke-Check Plus](https://ctcfinder.com/tester/certified-smoke-check-plus-west-sacramento/)** — West Sacramento, CA 95691 — (916) 335-9201 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Fid's Smog and Tune/ Martins Integrity auto](https://ctcfinder.com/tester/fids-smog-and-tune-martins-integrity-auto-west-sacramento/)** — 1048 Soule St, West Sacramento, CA 95691 — (916) 835-8706 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Gill](https://ctcfinder.com/tester/gill-west-sacramento/)** — 3967 Seaport Blvd, West Sacramento, CA 95691 — (916) 778-5000 — 9 mi. Services: mobile testing, OBD testing. - **[JLS clean truck check](https://ctcfinder.com/tester/jls-clean-truck-check-west-sacramento/)** — 1305 Bonita Ct, West Sacramento, CA 95691 — (916) 241-6181 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Kevin Davis](https://ctcfinder.com/tester/kevin-davis-west-sacramento/)** — West Sacramento, CA 95691 — (916) 826-6634 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Lakhwinder pal Singh](https://ctcfinder.com/tester/lakhwinder-pal-singh-west-sacramento/)** — West Sacramento, CA 95691 — (279) 842-6069 — 9 mi. Services: mobile testing, OBD 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 Woodland? CTC Finder lists 12 testing businesses in Woodland from CARB's public tester list (15 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 Woodland? Yes. 11 listed businesses in Woodland 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 Woodland? 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 - [West Sacramento](https://ctcfinder.com/testers/yolo-county/west-sacramento/) — 21 listings, 10 mi - [Mcclellan](https://ctcfinder.com/testers/sacramento-county/mcclellan/) — 4 listings, 18 mi - [Sacramento](https://ctcfinder.com/testers/sacramento-county/sacramento/) — 68 listings, 19 mi - [North Highlands](https://ctcfinder.com/testers/sacramento-county/north-highlands/) — 5 listings, 19 mi - [Winters](https://ctcfinder.com/testers/yolo-county/winters/) — 4 listings, 20 mi - [Dixon](https://ctcfinder.com/testers/solano-county/dixon/) — 8 listings, 20 mi - [Roseville](https://ctcfinder.com/testers/placer-county/roseville/) — 12 listings, 22 mi - [Yuba City](https://ctcfinder.com/testers/sutter-county/yuba-city/) — 11 listings, 24 mi - [Citrus Heights](https://ctcfinder.com/testers/sacramento-county/citrus-heights/) — 7 listings, 24 mi - [Vacaville](https://ctcfinder.com/testers/solano-county/vacaville/) — 6 listings, 25 mi