--- title: "Clean Truck Check Testers in Chico, CA (10 listed)" description: "Find 10 CARB-credentialed Clean Truck Check testers in Chico, Butte County: 9 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/butte-county/chico/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Chico, CA 10 testing businesses in Chico (Butte County) are on CARB's public Clean Truck Check tester list (10 credentialed testers). 9 offer mobile testing, 2 do smoke opacity tests, 8 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 Chico - **[Arvonen Construction Tester](https://ctcfinder.com/tester/arvonen-construction-tester-chico/)** — 327 Entler Ave, Chico, CA 95928 — (530) 624-2231. Services: mobile testing, OBD testing, motorhome testing. - **[C & C Utility Inc.](https://ctcfinder.com/tester/c-and-c-utility-inc-chico/)** — 632 Entler Ave, Chico, CA 95928 — (530) 282-7621. Services: OBD testing. - **[E&T Truck Repair](https://ctcfinder.com/tester/e-and-t-truck-repair-chico/)** — 2266 Park Ave, Chico, CA 95928 — (360) 270-1279. Services: mobile testing, OBD testing, motorhome testing. - **[Jeff Harrod](https://ctcfinder.com/tester/jeff-harrod-chico/)** — Chico, CA 95973 — (530) 895-8070. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[JM equipment repair](https://ctcfinder.com/tester/jm-equipment-repair-chico/)** — 960 Eaton Rd, Chico, CA 95973 — (530) 570-3378. Services: mobile testing, OBD testing, motorhome testing. - **[Mobile CARB Testing](https://ctcfinder.com/tester/mobile-carb-testing-chico/)** — 1413 Spruce Ave, Chico, CA 95926 — (530) 845-2840. Services: mobile testing, OBD testing, motorhome testing. - **[Nccti](https://ctcfinder.com/tester/nccti-chico/)** — 1916 Cameron Ln, Chico, CA 95926 — (530) 521-1035. Services: mobile testing, OBD testing. - **[NorCal Auto Inc](https://ctcfinder.com/tester/norcal-auto-inc-chico/)** — 225 Sellers Way, Chico, CA 95928 — (530) 966-0975. Services: mobile testing, OBD testing, motorhome testing. - **[NorCal Mobile HDTC](https://ctcfinder.com/tester/norcal-mobile-hdtc-chico/)** — Chico, CA 95928 — (530) 415-6087. Services: mobile testing, OBD testing, motorhome testing. - **[Peterson Cat](https://ctcfinder.com/tester/peterson-cat-chico/)** — Chico, CA 95928 — (530) 781-2690. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[Pape Kenworth Durham](https://ctcfinder.com/tester/pape-kenworth-durham-durham/)** — Durham, CA 95938 — (530) 893-8617 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Michael Essila](https://ctcfinder.com/tester/michael-essila-magalia/)** — Magalia, CA 95954 — (530) 321-9334 — 16 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Skyway Smog Check](https://ctcfinder.com/tester/skyway-smog-check-magalia/)** — 6437 Hollywood Rd, Magalia, CA 95954 — (530) 588-1995 — 16 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Northstate Diesel](https://ctcfinder.com/tester/northstate-diesel-oroville/)** — 719 Nelson Ave, Oroville, CA 95965 — (530) 990-3505 — 17 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Woods Mobile Truck Testing ( We come to you )](https://ctcfinder.com/tester/woods-mobile-truck-testing-we-come-to-you-oroville/)** — 1808 10th St, Oroville, CA 95965 — (530) 712-1310 — 17 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 Chico? CTC Finder lists 10 testing businesses in Chico from CARB's public tester list (10 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 Chico? Yes. 9 listed businesses in Chico 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 Chico? 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 - [Biggs](https://ctcfinder.com/testers/butte-county/biggs/) — 4 listings, 21 mi - [Oroville](https://ctcfinder.com/testers/butte-county/oroville/) — 4 listings, 23 mi - [Orland](https://ctcfinder.com/testers/glenn-county/orland/) — 4 listings, 24 mi - [Corning](https://ctcfinder.com/testers/tehama-county/corning/) — 4 listings, 26 mi - [Gridley](https://ctcfinder.com/testers/butte-county/gridley/) — 3 listings, 27 mi - [Marysville](https://ctcfinder.com/testers/yuba-county/marysville/) — 3 listings, 40 mi