--- title: "Clean Truck Check Testers in Ventura, CA (14 listed)" description: "Find 14 CARB-credentialed Clean Truck Check testers in Ventura, Ventura County: 14 offer mobile testing, 4 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/ventura-county/ventura/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Ventura, CA 14 testing businesses in Ventura (Ventura County) are on CARB's public Clean Truck Check tester list (14 credentialed testers). 14 offer mobile testing, 4 do smoke opacity tests, 11 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 Ventura - **[Abdullah Kwara](https://ctcfinder.com/tester/abdullah-kwara-ventura/)** — Ventura, CA 93003 — (805) 823-3984. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Bradley Rhodes](https://ctcfinder.com/tester/bradley-rhodes-ventura/)** — Ventura, CA 93001 — (951) 203-7174. Services: mobile testing, OBD testing, motorhome testing. - **[Clean Planet Smog Check](https://ctcfinder.com/tester/clean-planet-smog-check-ventura/)** — 1050 E Thompson Blvd, Ventura, CA 93001 — (805) 403-8721. Services: mobile testing, OBD testing, motorhome testing. - **[Cornerstone Diesel Compliance](https://ctcfinder.com/tester/cornerstone-diesel-compliance-ventura/)** — 1569 Raccoon Ct, Ventura, CA 93003 — (661) 932-6468. Services: mobile testing, OBD testing, motorhome testing. - **[Macias Mobile Repair](https://ctcfinder.com/tester/macias-mobile-repair-ventura/)** — Ventura, CA 93004 — (760) 560-6523. Services: mobile testing, OBD testing, motorhome testing. - **[Michael Attema](https://ctcfinder.com/tester/michael-attema-ventura/)** — Ventura, CA 93004 — (805) 797-0570. Services: mobile testing, OBD testing. - **[MP Enterprises](https://ctcfinder.com/tester/mp-enterprises-ventura/)** — 9059 Neath St, Ventura, CA 93004 — (805) 797-4438. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[OST Trucks and Cranes](https://ctcfinder.com/tester/ost-trucks-and-cranes-ventura/)** — 2951 N Ventura Ave, Ventura, CA 93001 — (805) 479-9441. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Pablo Lefort](https://ctcfinder.com/tester/pablo-lefort-ventura/)** — Ventura, CA 93004 — (805) 407-8773. Services: mobile testing, OBD testing. - **[RAM Truck And Trailer Repair](https://ctcfinder.com/tester/ram-truck-and-trailer-repair-ventura/)** — 6952 Malta PL, Ventura, CA 93003 — (323) 420-9398. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Robert Logan](https://ctcfinder.com/tester/robert-logan-ventura/)** — Ventura, CA 93004 — (805) 891-7197. Services: mobile testing, OBD testing, motorhome testing. - **[Russell Repairs](https://ctcfinder.com/tester/russell-repairs-ventura/)** — Ventura, CA 93004 — (805) 320-3038. Services: mobile testing, OBD testing, motorhome testing. - **[SAM Hill and Sons](https://ctcfinder.com/tester/sam-hill-and-sons-ventura/)** — 2627 Beene Rd, Ventura, CA 93003 — (805) 761-8998. Services: mobile testing, OBD testing, motorhome testing. - **[Wise Fleet Services](https://ctcfinder.com/tester/wise-fleet-services-ventura/)** — 1335 N Ventura Ave, Ventura, CA 93001 — (805) 415-6569. Services: mobile testing, OBD testing. ## More testers within 20 miles - **[Conley Clean Truck Check](https://ctcfinder.com/tester/conley-clean-truck-check-oxnard/)** — 456 Walnut Dr, Oxnard, CA 93036 — (805) 766-9866 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[DieselCTC](https://ctcfinder.com/tester/dieselctc-oxnard/)** — Oxnard, CA 93036 — (805) 832-1174 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Gustavo servin](https://ctcfinder.com/tester/gustavo-servin-oxnard/)** — Oxnard, CA 93036 — (805) 233-0108 — 6 mi. Services: OBD testing, smoke opacity (non-OBD) testing. - **[Isaac Lopez](https://ctcfinder.com/tester/isaac-lopez-oxnard/)** — Oxnard, CA 93036 — (805) 836-5098 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Ricardo Jimenez](https://ctcfinder.com/tester/ricardo-jimenez-oxnard/)** — Oxnard, CA 93036 — (805) 832-3308 — 6 mi. Services: mobile testing, OBD testing. - **[Big Rig Smog II](https://ctcfinder.com/tester/big-rig-smog-ii-oxnard/)** — 202 S Oxnard Blvd, Oxnard, CA 93030 — (805) 638-3911 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Certified CTC Testing](https://ctcfinder.com/tester/certified-ctc-testing-oxnard/)** — 3451 Jupiter Ct, Oxnard, CA 93030 — (805) 624-0770 — 8 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Ivan Juarez](https://ctcfinder.com/tester/ivan-juarez-oxnard/)** — Oxnard, CA 93030 — (805) 946-8357 — 8 mi. Services: mobile testing, OBD testing. - **[J.J.'s Smog](https://ctcfinder.com/tester/j-j-s-smog-oxnard/)** — 1281 S Oxnard Blvd, Oxnard, CA 93030 — (805) 216-5284 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Juarez Clean Truck Check](https://ctcfinder.com/tester/juarez-clean-truck-check-oxnard/)** — 950 Mountain View Ave, Oxnard, CA 93030 — (805) 910-7116 — 8 mi. Services: mobile testing, OBD testing. - **[Marvin E Lopez](https://ctcfinder.com/tester/marvin-e-lopez-oxnard/)** — Oxnard, CA 93030 — (805) 236-6036 — 8 mi. Services: mobile testing, OBD testing. - **[Mobile Opacity Testing](https://ctcfinder.com/tester/mobile-opacity-testing-oxnard/)** — 512 Niveo Lane 512 Niveo Lane, Oxnard, CA 93030 — (805) 612-5243 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## Trucking in Ventura Ventura County includes the Port of Hueneme in Oxnard and agricultural trucking in the Oxnard Plain and Santa Clara River Valley. ## 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 Ventura? CTC Finder lists 14 testing businesses in Ventura from CARB's public tester list (14 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 Ventura? Yes. 14 listed businesses in Ventura 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 Ventura? 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 - [Oxnard](https://ctcfinder.com/testers/ventura-county/oxnard/) — 22 listings, 9 mi - [Santa Paula](https://ctcfinder.com/testers/ventura-county/santa-paula/) — 5 listings, 9 mi - [Camarillo](https://ctcfinder.com/testers/ventura-county/camarillo/) — 5 listings, 12 mi - [Newbury Park](https://ctcfinder.com/testers/ventura-county/newbury-park/) — 3 listings, 19 mi - [Moorpark](https://ctcfinder.com/testers/ventura-county/moorpark/) — 4 listings, 20 mi - [Thousand Oaks](https://ctcfinder.com/testers/ventura-county/thousand-oaks/) — 3 listings, 25 mi - [Simi Valley](https://ctcfinder.com/testers/ventura-county/simi-valley/) — 8 listings, 28 mi - [Santa Barbara](https://ctcfinder.com/testers/santa-barbara-county/santa-barbara/) — 5 listings, 29 mi - [Chatsworth](https://ctcfinder.com/testers/los-angeles-county/chatsworth/) — 4 listings, 36 mi - [Valencia](https://ctcfinder.com/testers/los-angeles-county/valencia/) — 5 listings, 39 mi