--- title: "Clean Truck Check Testers in Hanford, CA (7 listed)" description: "Find 7 CARB-credentialed Clean Truck Check testers in Hanford, Kings County: 5 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/kings-county/hanford/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Hanford, CA 7 testing businesses in Hanford (Kings County) are on CARB's public Clean Truck Check tester list (9 credentialed testers). 5 offer mobile testing, 2 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 Hanford - **[Holloway Construction, Inc.](https://ctcfinder.com/tester/holloway-construction-inc-hanford/)** — 13069 13th Rd W, Hanford, CA 93230 — (559) 772-9060. Services: OBD testing, motorhome testing. - **[Alves & Sons Diesel Repair](https://ctcfinder.com/tester/alves-and-sons-diesel-repair-hanford/)** — 11182 9 3/4 Ave, Hanford, CA 93230 — (559) 584-6769. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Alves & Sons Diesel Repair, Inc.](https://ctcfinder.com/tester/alves-and-sons-diesel-repair-inc-hanford/)** — 11182 9 3/4 Ave, Hanford, CA 93230 — (559) 380-5398. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Little Worley's Auto Electric](https://ctcfinder.com/tester/little-worleys-auto-electric-hanford/)** — 351 W 4th St, Hanford, CA 93230 — (559) 589-3755. Services: mobile testing, OBD testing, motorhome testing. - **[Ochoa Smog](https://ctcfinder.com/tester/ochoa-smog-hanford/)** — 307 E 4th St, Hanford, CA 93230 — (559) 707-9030. Services: OBD testing. - **[Ricardo Diesel smog](https://ctcfinder.com/tester/ricardo-diesel-smog-hanford/)** — 4062 13 1/4 Ave, Hanford, CA 93230 — (559) 545-8561. Services: mobile testing, OBD testing. - **[Valley Wide Clean Truck Check](https://ctcfinder.com/tester/valley-wide-clean-truck-check-hanford/)** — 3384 N Discovery Way, Hanford, CA 93230 — (559) 904-2943. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Clean Air Services](https://ctcfinder.com/tester/clean-air-services-lemoore/)** — 491 Avalon Dr, Lemoore, CA 93245 — (559) 476-7467 — 12 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Harris Trucking LLC](https://ctcfinder.com/tester/harris-trucking-llc-lemoore/)** — 1315 Chimney Way, Lemoore, CA 93245 — (559) 994-8236 — 12 mi. Services: mobile testing, OBD testing. - **[Justin Billingsley](https://ctcfinder.com/tester/justin-billingsley-lemoore/)** — Lemoore, CA 93245 — (559) 998-9101 — 12 mi. Services: mobile testing, OBD testing. - **[Sanson’s Smoke Testing](https://ctcfinder.com/tester/sansons-smoke-testing-lemoore/)** — 862 Bristol Cir, Lemoore, CA 93245 — (559) 864-2644 — 12 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Stoneys Sand and Gravel](https://ctcfinder.com/tester/stoneys-sand-and-gravel-lemoore/)** — Lemoore, CA 93245 — (559) 362-3152 — 12 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Busloop](https://ctcfinder.com/tester/busloop-goshen/)** — 6835 Avenue 305, Goshen, CA 93227 — (510) 209-6691 — 12 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Cal Testing Services](https://ctcfinder.com/tester/cal-testing-services-visalia/)** — 1950 W Walnut Ave, Visalia, CA 93277 — (559) 378-4873 — 14 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Cameron Ziessler](https://ctcfinder.com/tester/cameron-ziessler-visalia/)** — Visalia, CA 93277 — (559) 802-0338 — 14 mi. Services: mobile testing, OBD testing, motorhome testing. - **[A & M Truck Compliance](https://ctcfinder.com/tester/a-and-m-truck-compliance-kingsburg/)** — 1501 Ventura St, Kingsburg, CA 93631 — (559) 859-9213 — 14 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Bryan truck services](https://ctcfinder.com/tester/bryan-truck-services-kingsburg/)** — 800 7th Avenue Dr, Kingsburg, CA 93631 — (559) 859-5866 — 14 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[C & M Truck & Trailer LLC](https://ctcfinder.com/tester/c-and-m-truck-and-trailer-llc-visalia/)** — 30309 Road 48, Visalia, CA 93291 — (559) 936-8097 — 16 mi. Services: mobile testing, OBD testing, motorhome testing. - **[California Tire Service](https://ctcfinder.com/tester/california-tire-service-visalia/)** — 6905 Avenue 304, Visalia, CA 93291 — (559) 691-9921 — 16 mi. Services: mobile testing, OBD 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 Hanford? CTC Finder lists 7 testing businesses in Hanford from CARB's public tester list (9 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 Hanford? Yes. 5 listed businesses in Hanford 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 Hanford? 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 - [Lemoore](https://ctcfinder.com/testers/kings-county/lemoore/) — 5 listings, 12 mi - [Tulare](https://ctcfinder.com/testers/tulare-county/tulare/) — 10 listings, 16 mi - [Selma](https://ctcfinder.com/testers/fresno-county/selma/) — 11 listings, 17 mi - [Visalia](https://ctcfinder.com/testers/tulare-county/visalia/) — 19 listings, 20 mi - [Dinuba](https://ctcfinder.com/testers/tulare-county/dinuba/) — 4 listings, 21 mi - [Fowler](https://ctcfinder.com/testers/fresno-county/fowler/) — 5 listings, 23 mi - [Pixley](https://ctcfinder.com/testers/tulare-county/pixley/) — 3 listings, 28 mi - [Reedley](https://ctcfinder.com/testers/fresno-county/reedley/) — 4 listings, 28 mi - [Fresno](https://ctcfinder.com/testers/fresno-county/fresno/) — 74 listings, 33 mi - [Sanger](https://ctcfinder.com/testers/fresno-county/sanger/) — 4 listings, 37 mi