--- title: "Clean Truck Check Testers in Folsom, CA (5 listed)" description: "Find 5 CARB-credentialed Clean Truck Check testers in Folsom, Sacramento County: 5 offer mobile testing, 3 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/sacramento-county/folsom/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Folsom, CA 5 testing businesses in Folsom (Sacramento County) are on CARB's public Clean Truck Check tester list (5 credentialed testers). 5 offer mobile testing, 3 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 Folsom - **[Bryan Foley](https://ctcfinder.com/tester/bryan-foley-folsom/)** — Folsom, CA 95630 — (916) 316-3009. Services: mobile testing, OBD testing, motorhome testing. - **[Ccatr, LLC.](https://ctcfinder.com/tester/ccatr-llc-folsom/)** — 1015 Riley St 1244, Folsom, CA 95630 — (530) 308-2711. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[CJ's Clean Truck Check](https://ctcfinder.com/tester/cjs-clean-truck-check-folsom/)** — 9580 Oak Avenue Pkwy Ste 7 #648, Folsom, CA 95630 — (916) 850-5904. Services: mobile testing, OBD testing. - **[TRUCK,BUS, RVs](https://ctcfinder.com/tester/truck-bus-rvs-folsom/)** — 2300 Iron Point Rd, Folsom, CA 95630 — (916) 538-7777. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[West Coast Mobile Diesel Opacity Testing](https://ctcfinder.com/tester/west-coast-mobile-diesel-opacity-testing-folsom/)** — 161 Gilded Rock Cir, Folsom, CA 95630 — (916) 616-5078. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[Cap City Diesel Inspections TRUCK, BUS, RV](https://ctcfinder.com/tester/cap-city-diesel-inspections-truck-bus-rv-el-dorado-hills/)** — 3941 Park Dr Suite 20, El Dorado Hills, CA 95762 — (916) 538-7777 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Steven Smith](https://ctcfinder.com/tester/steven-smith-el-dorado-hills/)** — El Dorado Hills, CA 95762 — (916) 607-7029 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Cap City DSL Inspections](https://ctcfinder.com/tester/cap-city-dsl-inspections-orangevale/)** — 8863 Greenback Lane, Orangevale, CA 95662 — (916) 538-7777 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Mobile Compliance Testing](https://ctcfinder.com/tester/mobile-compliance-testing-fair-oaks/)** — Fair Oaks, CA 95628 — (916) 538-7777 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Fleet Rescue](https://ctcfinder.com/tester/fleet-rescue-citrus-heights/)** — 7524 Circuit Dr, Citrus Heights, CA 95610 — (916) 847-3811 — 7 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[IKAG Ventures](https://ctcfinder.com/tester/ikag-ventures-citrus-heights/)** — Citrus Heights, CA 95610 — (916) 833-5493 — 7 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Speed E Smog](https://ctcfinder.com/tester/speed-e-smog-citrus-heights/)** — 7920 Auburn Blvd, Citrus Heights, CA 95610 — (714) 251-7232 — 7 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Vlt Express INC](https://ctcfinder.com/tester/vlt-express-inc-citrus-heights/)** — 7149 Canelo Hills Dr, Citrus Heights, CA 95610 — (916) 580-5909 — 7 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[carbdieseltest.com](https://ctcfinder.com/tester/carbdieseltest-com-rancho-cordova/)** — 3324 Monier Cir, Rancho Cordova, CA 95742 — (916) 538-7777 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[K&T Truck Rtepair INC](https://ctcfinder.com/tester/k-and-t-truck-rtepair-inc-rancho-cordova/)** — 3259 Luyung Dr, Rancho Cordova, CA 95742 — (916) 838-9506 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Trans Network](https://ctcfinder.com/tester/trans-network-roseville/)** — Roseville, CA 95661 — (916) 220-0796 — 8 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Credentialed tester in Citrus Heights](https://ctcfinder.com/tester/credentialed-tester-in-citrus-heights-citrus-heights/)** — 6121 Tupelo Dr, Citrus Heights, CA — (916) 798-8400 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## Trucking in Folsom Sacramento County sits at the I-5 / I-80 crossroads and has many government fleets, which are also subject to Clean Truck Check. ## 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 Folsom? CTC Finder lists 5 testing businesses in Folsom from CARB's public tester list (5 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 Folsom? Yes. 5 listed businesses in Folsom 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 Folsom? 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 - [Rancho Cordova](https://ctcfinder.com/testers/sacramento-county/rancho-cordova/) — 5 listings, 8 mi - [Citrus Heights](https://ctcfinder.com/testers/sacramento-county/citrus-heights/) — 7 listings, 8 mi - [Shingle Springs](https://ctcfinder.com/testers/el-dorado-county/shingle-springs/) — 3 listings, 11 mi - [Rocklin](https://ctcfinder.com/testers/placer-county/rocklin/) — 6 listings, 11 mi - [Roseville](https://ctcfinder.com/testers/placer-county/roseville/) — 12 listings, 13 mi - [North Highlands](https://ctcfinder.com/testers/sacramento-county/north-highlands/) — 5 listings, 13 mi - [Mcclellan](https://ctcfinder.com/testers/sacramento-county/mcclellan/) — 4 listings, 14 mi - [Sacramento](https://ctcfinder.com/testers/sacramento-county/sacramento/) — 68 listings, 17 mi - [Wilton](https://ctcfinder.com/testers/sacramento-county/wilton/) — 4 listings, 19 mi - [Placerville](https://ctcfinder.com/testers/el-dorado-county/placerville/) — 3 listings, 19 mi