--- title: "Clean Truck Check Testers in Dixon, CA (8 listed)" description: "Find 8 CARB-credentialed Clean Truck Check testers in Dixon, Solano County: 6 offer mobile testing, 5 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/solano-county/dixon/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Dixon, CA 8 testing businesses in Dixon (Solano County) are on CARB's public Clean Truck Check tester list (8 credentialed testers). 6 offer mobile testing, 5 do smoke opacity tests, 5 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 Dixon - **[Charge](https://ctcfinder.com/tester/charge-dixon/)** — 6888 Tremont Rd, Dixon, CA 95620 — (915) 433-1657. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Credentialed tester in Dixon](https://ctcfinder.com/tester/credentialed-tester-in-dixon-dixon/)** — 255 Bowen Ln, Dixon, CA 95620 — (707) 640-0797. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[DriveCity Lube and Smog](https://ctcfinder.com/tester/drivecity-lube-and-smog-dixon/)** — 2800 W A St, Dixon, CA 95620 — (707) 640-4967. Services: not listed. - **[Hamilton Smoke Opacity Testing](https://ctcfinder.com/tester/hamilton-smoke-opacity-testing-dixon/)** — Dixon, CA 95620 — (707) 718-4396. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Mike Lowrie Trucking, INC.](https://ctcfinder.com/tester/mike-lowrie-trucking-inc-dixon/)** — 8714 Sparling Ln, Dixon, CA 95620 — (707) 678-7575. Services: not listed. - **[Mobile CARB Testing](https://ctcfinder.com/tester/mobile-carb-testing-dixon/)** — Dixon, CA 95620 — (916) 538-7777. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Mustard's Mobile CTC](https://ctcfinder.com/tester/mustards-mobile-ctc-dixon/)** — 410 Vanderbilt Dr, Dixon, CA 95620 — (707) 685-5258. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Thom Bogue](https://ctcfinder.com/tester/thom-bogue-dixon/)** — Dixon, CA 95620 — (707) 580-4955. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Tommy Bowen](https://ctcfinder.com/tester/tommy-bowen-vacaville/)** — Vacaville, CA 95687 — (707) 330-2331 — 10 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Sac Valley Mobile Diesel Testing](https://ctcfinder.com/tester/sac-valley-mobile-diesel-testing-davis/)** — Davis, CA 95616 — (707) 450-8175 — 11 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Eddie Laud](https://ctcfinder.com/tester/eddie-laud-sacramento/)** — Sacramento, CA 95832 — (916) 477-3851 — 14 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Valentino Ratola](https://ctcfinder.com/tester/valentino-ratola-ryde/)** — Ryde, CA 95680 — (209) 329-8592 — 15 mi. Services: mobile testing, OBD testing. - **[All Sacramento/Bay Area](https://ctcfinder.com/tester/all-sacramento-bay-area-vacaville/)** — Vacaville, CA 95688 — (916) 243-5089 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Brian Tierney](https://ctcfinder.com/tester/brian-tierney-vacaville/)** — Vacaville, CA 95688 — (707) 363-4083 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Buckners Truck Check](https://ctcfinder.com/tester/buckners-truck-check-vacaville/)** — 137 Suncrest Way, Vacaville, CA 95688 — (707) 828-4016 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[C.A.R.B Credentialed Tester- MOBILE TESTING](https://ctcfinder.com/tester/c-a-r-b-credentialed-tester-mobile-testing-vacaville/)** — Vacaville, CA 95688 — (916) 538-7777 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[I505 truck and trailer repair](https://ctcfinder.com/tester/i505-truck-and-trailer-repair-vacaville/)** — 251 Crocker Dr, Vacaville, CA 95688 — (707) 815-2003 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Mikey’s Enterprises, llc](https://ctcfinder.com/tester/mikeys-enterprises-llc-sacramento/)** — 7358 Tisdale Way, Sacramento, CA 95822 — (916) 889-1199 — 16 mi. Services: mobile testing, OBD testing. - **[Lucky Tires and Repair Services](https://ctcfinder.com/tester/lucky-tires-and-repair-services-fairfield/)** — 5201 WB Goodman Ln, Fairfield, CA 94533 — (707) 439-5797 — 16 mi. Services: mobile testing, OBD testing. - **[Mobile Testing](https://ctcfinder.com/tester/mobile-testing-fairfield/)** — Fairfield, CA 94533 — (916) 538-7777 — 16 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 Dixon? CTC Finder lists 8 testing businesses in Dixon from CARB's public tester list (8 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 Dixon? Yes. 6 listed businesses in Dixon 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 Dixon? 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 - [Vacaville](https://ctcfinder.com/testers/solano-county/vacaville/) — 6 listings, 14 mi - [West Sacramento](https://ctcfinder.com/testers/yolo-county/west-sacramento/) — 21 listings, 18 mi - [Woodland](https://ctcfinder.com/testers/yolo-county/woodland/) — 12 listings, 20 mi - [Fairfield](https://ctcfinder.com/testers/solano-county/fairfield/) — 11 listings, 20 mi - [Winters](https://ctcfinder.com/testers/yolo-county/winters/) — 4 listings, 20 mi - [Sacramento](https://ctcfinder.com/testers/sacramento-county/sacramento/) — 68 listings, 21 mi - [Elk Grove](https://ctcfinder.com/testers/sacramento-county/elk-grove/) — 16 listings, 21 mi - [Mcclellan](https://ctcfinder.com/testers/sacramento-county/mcclellan/) — 4 listings, 26 mi - [North Highlands](https://ctcfinder.com/testers/sacramento-county/north-highlands/) — 5 listings, 28 mi - [Napa](https://ctcfinder.com/testers/napa-county/napa/) — 11 listings, 28 mi