--- title: "Clean Truck Check Testers in Soledad, CA (3 listed)" description: "Find 3 CARB-credentialed Clean Truck Check testers in Soledad, Monterey County: 3 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/monterey-county/soledad/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Soledad, CA 3 testing businesses in Soledad (Monterey County) are on CARB's public Clean Truck Check tester list (3 credentialed testers). 3 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 Soledad - **[Express Truck and Trailer Services](https://ctcfinder.com/tester/express-truck-and-trailer-services-soledad/)** — 149 Nestles Rd, Soledad, CA 93960 — (831) 705-9207. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jose Diaz](https://ctcfinder.com/tester/jose-diaz-soledad/)** — Soledad, CA 93960 — (831) 821-0165. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Premier Smogs](https://ctcfinder.com/tester/premier-smogs-soledad/)** — 801 Front St, Soledad, CA 93960 — (831) 305-3969. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Isaiah Banuelos](https://ctcfinder.com/tester/isaiah-banuelos-gonzales/)** — Gonzales, CA 93926 — (831) 261-5095 — 9 mi. Services: mobile testing, OBD testing. - **[MH Parts and Equipment Services](https://ctcfinder.com/tester/mh-parts-and-equipment-services-gonzales/)** — 539 Delmonte Dr, Gonzales, CA 93926 — (831) 710-1878 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Salinas Valley Emissions LLC](https://ctcfinder.com/tester/salinas-valley-emissions-llc-gonzales/)** — 434 Brockmann Dr, Gonzales, CA 93926 — (831) 537-4397 — 9 mi. Services: mobile testing, OBD testing. - **[JM Diesel Solutions](https://ctcfinder.com/tester/jm-diesel-solutions-greenfield/)** — 792 Cherry Ave, Greenfield, CA 93927 — (831) 585-8927 — 10 mi. Services: mobile testing, OBD testing, motorhome testing. - **[County Line Diesel & Tractor Service](https://ctcfinder.com/tester/county-line-diesel-and-tractor-service-king-city/)** — 129 Divina Way, King City, CA 93930 — (831) 225-8654 — 20 mi. Services: mobile testing, OBD testing. - **[Mobile Fleet Emissions](https://ctcfinder.com/tester/mobile-fleet-emissions-king-city/)** — 1303 Cambridge Ave, King City, CA 93930 — (831) 206-7950 — 20 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Soledad Truck and Auto Repair](https://ctcfinder.com/tester/soledad-truck-and-auto-repair-king-city/)** — 730 S 1st St, King City, CA 93930 — (831) 315-0556 — 20 mi. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in Soledad Monterey County's Salinas Valley produce industry relies on agricultural and refrigerated trucks. ## 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 Soledad? CTC Finder lists 3 testing businesses in Soledad from CARB's public tester list (3 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 Soledad? Yes. 3 listed businesses in Soledad 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 Soledad? 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 - [Gonzales](https://ctcfinder.com/testers/monterey-county/gonzales/) — 3 listings, 9 mi - [King City](https://ctcfinder.com/testers/monterey-county/king-city/) — 3 listings, 20 mi - [Salinas](https://ctcfinder.com/testers/monterey-county/salinas/) — 21 listings, 26 mi - [Monterey](https://ctcfinder.com/testers/monterey-county/monterey/) — 3 listings, 29 mi - [Hollister](https://ctcfinder.com/testers/san-benito-county/hollister/) — 7 listings, 36 mi