--- title: "Clean Truck Check Testers in Gonzales, CA (3 listed)" description: "Find 3 CARB-credentialed Clean Truck Check testers in Gonzales, Monterey County: 3 offer mobile testing, 1 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/monterey-county/gonzales/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Gonzales, CA 3 testing businesses in Gonzales (Monterey County) are on CARB's public Clean Truck Check tester list (3 credentialed testers). 3 offer mobile testing, 1 do smoke opacity tests, 1 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 Gonzales - **[Isaiah Banuelos](https://ctcfinder.com/tester/isaiah-banuelos-gonzales/)** — Gonzales, CA 93926 — (831) 261-5095. 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. 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. Services: mobile testing, OBD testing. ## More testers within 20 miles - **[Express Truck and Trailer Services](https://ctcfinder.com/tester/express-truck-and-trailer-services-soledad/)** — 149 Nestles Rd, Soledad, CA 93960 — (831) 705-9207 — 9 mi. 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 — 9 mi. 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 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Enrique salinas](https://ctcfinder.com/tester/enrique-salinas-salinas/)** — Salinas, CA 93908 — (408) 656-1176 — 13 mi. Services: mobile testing, OBD testing. - **[Pacific Ag Rentals](https://ctcfinder.com/tester/pacific-ag-rentals-salinas/)** — 4 Harris Rd, Salinas, CA 93908 — (831) 417-9792 — 13 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Ramon Rubalcava](https://ctcfinder.com/tester/ramon-rubalcava-salinas/)** — Salinas, CA 93908 — (928) 750-3418 — 13 mi. Services: mobile testing, OBD testing. - **[Robert Ivers](https://ctcfinder.com/tester/robert-ivers-salinas/)** — Salinas, CA 93908 — (831) 206-0663 — 13 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Xpress Diesel](https://ctcfinder.com/tester/xpress-diesel-salinas/)** — 64 san benancio rd, Salinas, CA 93908 — (831) 383-9112 — 13 mi. Services: mobile testing, OBD testing. - **[A1 Mobile Service Inc](https://ctcfinder.com/tester/a1-mobile-service-inc-salinas/)** — 1112 Abbott St, Salinas, CA 93901 — (831) 595-1113 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Mario Hernandez](https://ctcfinder.com/tester/mario-hernandez-salinas/)** — Salinas, CA 93901 — (831) 596-4578 — 15 mi. Services: mobile testing, OBD testing. - **[Midstate Fleet Repair](https://ctcfinder.com/tester/midstate-fleet-repair-salinas/)** — 721 ABBOTT ST., Salinas, CA 93901 — (831) 809-8814 — 15 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Molina's Service](https://ctcfinder.com/tester/molinas-service-salinas/)** — 341 W Market St, Salinas, CA 93901 — (831) 229-6594 — 15 mi. Services: OBD testing, motorhome testing. ## Trucking in Gonzales 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 Gonzales? CTC Finder lists 3 testing businesses in Gonzales 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 Gonzales? Yes. 3 listed businesses in Gonzales 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 Gonzales? 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 - [Soledad](https://ctcfinder.com/testers/monterey-county/soledad/) — 3 listings, 9 mi - [Salinas](https://ctcfinder.com/testers/monterey-county/salinas/) — 21 listings, 17 mi - [Monterey](https://ctcfinder.com/testers/monterey-county/monterey/) — 3 listings, 23 mi - [Hollister](https://ctcfinder.com/testers/san-benito-county/hollister/) — 7 listings, 28 mi - [King City](https://ctcfinder.com/testers/monterey-county/king-city/) — 3 listings, 29 mi - [Gilroy](https://ctcfinder.com/testers/santa-clara-county/gilroy/) — 13 listings, 35 mi - [Watsonville](https://ctcfinder.com/testers/santa-cruz-county/watsonville/) — 10 listings, 35 mi