--- title: "Clean Truck Check Testers in Nipomo, CA (3 listed)" description: "Find 3 CARB-credentialed Clean Truck Check testers in Nipomo, San Luis Obispo County: 3 offer mobile testing, 0 do smoke opacity tests. Phone numbers, services…" url: "https://ctcfinder.com/testers/san-luis-obispo-county/nipomo/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Nipomo, CA 3 testing businesses in Nipomo (San Luis Obispo County) are on CARB's public Clean Truck Check tester list (3 credentialed testers). 3 offer mobile testing, 0 do smoke opacity tests, 2 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 Nipomo - **[Christian Garcia Mendoza](https://ctcfinder.com/tester/christian-garcia-mendoza-nipomo/)** — Nipomo, CA 93444 — (805) 631-6334. Services: mobile testing, OBD testing. - **[Pacific Coast Diesel](https://ctcfinder.com/tester/pacific-coast-diesel-nipomo/)** — 225 N Oak Glen Ave, Nipomo, CA 93444 — (805) 266-0253. Services: mobile testing, OBD testing, motorhome testing. - **[Troesh Recycling (Tester)](https://ctcfinder.com/tester/troesh-recycling-tester-nipomo/)** — 2280 Hutton Rd, Nipomo, CA 93444 — (805) 357-2288. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Auto-IQ](https://ctcfinder.com/tester/auto-iq-santa-maria/)** — 504 S Western Ave Suite A, Santa Maria, CA 93458 — (805) 878-8056 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Central City Truck and Trailer Parts](https://ctcfinder.com/tester/central-city-truck-and-trailer-parts-santa-maria/)** — 1912 S Olympia Dr, Santa Maria, CA 93458 — (805) 266-8050 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Cesar Ponce](https://ctcfinder.com/tester/cesar-ponce-santa-maria/)** — Santa Maria, CA 93458 — (805) 290-3907 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[PG CTC Testing](https://ctcfinder.com/tester/pg-ctc-testing-santa-maria/)** — 232 W Taft St, Santa Maria, CA 93458 — (805) 324-0829 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[RnR clean truck check](https://ctcfinder.com/tester/rnr-clean-truck-check-santa-maria/)** — 1026 W Main St Suite B, Santa Maria, CA 93458 — (805) 865-3859 — 6 mi. Services: mobile testing, OBD testing. - **[Salvador Valencia](https://ctcfinder.com/tester/salvador-valencia-santa-maria/)** — Santa Maria, CA 93458 — (805) 310-3695 — 6 mi. Services: mobile testing, OBD testing. - **[Beach Front Auto & Smog](https://ctcfinder.com/tester/beach-front-auto-and-smog-oceano/)** — 1210 Pike Ln, Oceano, CA 93445 — (805) 878-2620 — 7 mi. Services: OBD testing, motorhome testing. - **[Andrew Austin](https://ctcfinder.com/tester/andrew-austin-guadalupe/)** — Guadalupe, CA 93434 — (805) 598-2865 — 9 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Eduardo Garibay](https://ctcfinder.com/tester/eduardo-garibay-arroyo-grande/)** — Arroyo Grande, CA 93420 — (805) 723-4318 — 10 mi. Services: mobile testing, OBD testing. - **[Miller's 76](https://ctcfinder.com/tester/millers-76-pismo-beach/)** — 542 Five Cities Dr, Pismo Beach, CA 93449 — (805) 773-5727 — 12 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Travis Gomez](https://ctcfinder.com/tester/travis-gomez-orcutt/)** — Orcutt, CA 93455 — (831) 206-1643 — 13 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Cetti_Services Unlimited, Inc](https://ctcfinder.com/tester/cetti-services-unlimited-inc-santa-maria/)** — 1341 W McCoy Ln, Santa Maria, CA 93455 — (805) 207-8602 — 13 mi. Services: mobile testing, OBD testing, motorhome 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 Nipomo? CTC Finder lists 3 testing businesses in Nipomo 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 Nipomo? Yes. 3 listed businesses in Nipomo 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 Nipomo? 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 - [Santa Maria](https://ctcfinder.com/testers/santa-barbara-county/santa-maria/) — 21 listings, 11 mi - [San Luis Obispo](https://ctcfinder.com/testers/san-luis-obispo-county/san-luis-obispo/) — 4 listings, 15 mi - [Atascadero](https://ctcfinder.com/testers/san-luis-obispo-county/atascadero/) — 6 listings, 31 mi