--- title: "Clean Truck Check Testers in Morgan Hill, CA (6 listed)" description: "Find 6 CARB-credentialed Clean Truck Check testers in Morgan Hill, Santa Clara County: 6 offer mobile testing, 4 do smoke opacity tests. Phone numbers…" url: "https://ctcfinder.com/testers/santa-clara-county/morgan-hill/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Morgan Hill, CA 6 testing businesses in Morgan Hill (Santa Clara County) are on CARB's public Clean Truck Check tester list (6 credentialed testers). 6 offer mobile testing, 4 do smoke opacity tests, 4 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 Morgan Hill - **[Caddell Fleet Services](https://ctcfinder.com/tester/caddell-fleet-services-morgan-hill/)** — 16160 Church St, Morgan Hill, CA 95037 — (408) 599-9295. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Cali Smoke Testing](https://ctcfinder.com/tester/cali-smoke-testing-morgan-hill/)** — 2505 Pinto Ct, Morgan Hill, CA 95037 — (408) 427-2236. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Direct Fleet Scan](https://ctcfinder.com/tester/direct-fleet-scan-morgan-hill/)** — 305 Vineyard Town Ctr, Morgan Hill, CA 95037 — (408) 710-6489. Services: mobile testing, OBD testing. - **[Jose Gonzalez Sandoval](https://ctcfinder.com/tester/jose-gonzalez-sandoval-morgan-hill/)** — Morgan Hill, CA 95037 — (707) 430-1829. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Morgan Hill Smog](https://ctcfinder.com/tester/morgan-hill-smog-morgan-hill/)** — 195 San Pedro Ave Suite C 5, Morgan Hill, CA 95037 — (408) 763-1903. Services: mobile testing, OBD testing. - **[Norcal Inspections](https://ctcfinder.com/tester/norcal-inspections-morgan-hill/)** — 2505 Pinto Ct, Morgan Hill, CA 95037 — (408) 828-2080. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[CA Truck Compliance Group](https://ctcfinder.com/tester/ca-truck-compliance-group-san-martin/)** — 40 E San Martin Ave, San Martin, CA 95046 — (408) 360-7700 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jim Acker](https://ctcfinder.com/tester/jim-acker-san-martin/)** — San Martin, CA 95046 — (408) 710-6078 — 5 mi. Services: mobile testing, OBD testing, motorhome testing. - **[San Jose clean truck check](https://ctcfinder.com/tester/san-jose-clean-truck-check-san-jose/)** — 5564 Monterey Rd, San Jose, CA 95138 — (209) 996-5923 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[White Diamond Tester](https://ctcfinder.com/tester/white-diamond-tester-san-jose/)** — 63 Grandwell Way, San Jose, CA 95138 — (408) 603-9715 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[B&L Truck and Tractor Repair](https://ctcfinder.com/tester/b-and-l-truck-and-tractor-repair-gilroy/)** — 8594 Forest St, Gilroy, CA 95020 — (831) 889-8611 — 10 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Cruz Tire & Truck Repair](https://ctcfinder.com/tester/cruz-tire-and-truck-repair-gilroy/)** — 5870 Monterey Rd A, Gilroy, CA 95020 — (909) 533-0433 — 10 mi. Services: mobile testing, OBD testing. - **[Dhillon CARB Testing](https://ctcfinder.com/tester/dhillon-carb-testing-gilroy/)** — 1125 Violet Way, Gilroy, CA 95020 — (408) 775-9600 — 10 mi. Services: mobile testing, OBD testing. - **[Maggiora Bro Drilling](https://ctcfinder.com/tester/maggiora-bro-drilling-gilroy/)** — Gilroy, CA 95020 — (669) 469-9223 — 10 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Mateo Huerta](https://ctcfinder.com/tester/mateo-huerta-gilroy/)** — Gilroy, CA 95020 — (650) 290-0652 — 10 mi. Services: mobile testing, OBD testing. - **[Mosher Equipment Services LLC](https://ctcfinder.com/tester/mosher-equipment-services-llc-gilroy/)** — 1290 Masten Ave, Gilroy, CA 95020 — (408) 660-5693 — 10 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Premier Diesel LLC](https://ctcfinder.com/tester/premier-diesel-llc-gilroy/)** — 6484 Automall Pkwy, Gilroy, CA 95020 — (408) 842-2999 — 10 mi. Services: OBD testing. - **[Prime Smog Check & Repair LLC](https://ctcfinder.com/tester/prime-smog-check-and-repair-llc-gilroy/)** — 505 Mayock Rd Suite E-17, Gilroy, CA 95020 — (408) 337-1547 — 10 mi. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in Morgan Hill Santa Clara County has the largest number of listed testers in the Bay Area. ## 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 Morgan Hill? CTC Finder lists 6 testing businesses in Morgan Hill from CARB's public tester list (6 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 Morgan Hill? Yes. 6 listed businesses in Morgan Hill 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 Morgan Hill? 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 - [Gilroy](https://ctcfinder.com/testers/santa-clara-county/gilroy/) — 13 listings, 10 mi - [Watsonville](https://ctcfinder.com/testers/santa-cruz-county/watsonville/) — 10 listings, 13 mi - [San Jose](https://ctcfinder.com/testers/santa-clara-county/san-jose/) — 41 listings, 17 mi - [Campbell](https://ctcfinder.com/testers/santa-clara-county/campbell/) — 3 listings, 18 mi - [Santa Cruz](https://ctcfinder.com/testers/santa-cruz-county/santa-cruz/) — 3 listings, 22 mi - [Milpitas](https://ctcfinder.com/testers/santa-clara-county/milpitas/) — 3 listings, 24 mi - [Santa Clara](https://ctcfinder.com/testers/santa-clara-county/santa-clara/) — 3 listings, 24 mi - [Hollister](https://ctcfinder.com/testers/san-benito-county/hollister/) — 7 listings, 25 mi - [Mountain View](https://ctcfinder.com/testers/santa-clara-county/mountain-view/) — 3 listings, 28 mi - [Salinas](https://ctcfinder.com/testers/monterey-county/salinas/) — 21 listings, 31 mi