--- title: "Clean Truck Check Testers in Pomona, CA (12 listed)" description: "Find 12 CARB-credentialed Clean Truck Check testers in Pomona, Los Angeles County: 11 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services…" url: "https://ctcfinder.com/testers/los-angeles-county/pomona/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Pomona, CA 12 testing businesses in Pomona (Los Angeles County) are on CARB's public Clean Truck Check tester list (12 credentialed testers). 11 offer mobile testing, 2 do smoke opacity tests, 9 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 Pomona - **[Arties CTC Testing](https://ctcfinder.com/tester/arties-ctc-testing-pomona/)** — 1284 Prospect Drive, Pomona, CA 91766 — (562) 676-6754. Services: mobile testing, OBD testing, motorhome testing. - **[Clean test](https://ctcfinder.com/tester/clean-test-pomona/)** — 2413 South Reservoir Street, Pomona, CA 91766 — (909) 614-3388. Services: mobile testing, OBD testing. - **[Dada Transportataioion](https://ctcfinder.com/tester/dada-transportataioion-pomona/)** — Pomona, CA 91767 — (626) 522-5222. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Frankie's Carb](https://ctcfinder.com/tester/frankies-carb-pomona/)** — 1123 Bonnie Brae St, Pomona, CA 91767 — (909) 968-2856. Services: mobile testing, OBD testing. - **[Holistic Diesel](https://ctcfinder.com/tester/holistic-diesel-pomona/)** — 4053 E 9th St, Pomona, CA 91766 — (909) 729-6748. Services: mobile testing, OBD testing, motorhome testing. - **[Joseph Manke](https://ctcfinder.com/tester/joseph-manke-pomona/)** — Pomona, CA 91766 — (909) 762-8724. Services: mobile testing, OBD testing. - **[Juan Razo](https://ctcfinder.com/tester/juan-razo-pomona/)** — Pomona, CA 91766 — (909) 446-9284. Services: mobile testing, OBD testing, motorhome testing. - **[Macfire Truck Repair](https://ctcfinder.com/tester/macfire-truck-repair-pomona/)** — 1202 Price Street, Pomona, CA 91767 — (909) 919-6997. Services: mobile testing, OBD testing, motorhome testing. - **[MCS Testing LLC](https://ctcfinder.com/tester/mcs-testing-llc-pomona/)** — 1668 Via Estrella, Pomona, CA 91768 — (626) 409-8278. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[ND Smog](https://ctcfinder.com/tester/nd-smog-pomona/)** — 601 W Holt Ave, Pomona, CA 91768 — (909) 865-9000. Services: OBD testing, motorhome testing. - **[Pomona A Topline Smog](https://ctcfinder.com/tester/pomona-a-topline-smog-pomona/)** — 400 W Foothill Blvd, Pomona, CA 91767 — (909) 784-1555. Services: mobile testing, OBD testing, motorhome testing. - **[Pomona Gear](https://ctcfinder.com/tester/pomona-gear-pomona/)** — Pomona, CA 91766 — (909) 634-6435. Services: mobile testing, OBD testing, motorhome testing. ## More testers within 20 miles - **[Montclair smog center](https://ctcfinder.com/tester/montclair-smog-center-montclair/)** — Montclair, CA 91763 — (626) 650-9633 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Nancys Truck Registration & Permits](https://ctcfinder.com/tester/nancys-truck-registration-and-permits-montclair/)** — 5461 Holt Blvd STE A, Montclair, CA 91763 — (909) 489-2172 — 3 mi. Services: mobile testing, OBD testing. - **[Sergio Hermosillo](https://ctcfinder.com/tester/sergio-hermosillo-montclair/)** — Montclair, CA 91763 — (626) 646-8837 — 3 mi. Services: mobile testing. - **[Caloha Air Compliance](https://ctcfinder.com/tester/caloha-air-compliance-san-dimas/)** — 207 Hollyglen Lane, San Dimas, CA 91773 — (626) 926-1825 — 4 mi. Services: mobile testing, OBD testing. - **[DieselWorx](https://ctcfinder.com/tester/dieselworx-san-dimas/)** — San Dimas, CA 91773 — (626) 633-6967 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[JR Durazo](https://ctcfinder.com/tester/jr-durazo-san-dimas/)** — San Dimas, CA 91773 — (909) 721-5002 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Pacific West Communications (Pwc)](https://ctcfinder.com/tester/pacific-west-communications-pwc-san-dimas/)** — 900 W Gladstone St, San Dimas, CA 91773 — (626) 991-9086 — 4 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Aaron Davis -CLEAN TRUCK MOBILE TESTERS](https://ctcfinder.com/tester/aaron-davis-clean-truck-mobile-testers-ontario/)** — 2632 E Harlow Ln, Ontario, CA 91762 — (310) 345-7661 — 5 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Avid Smog, Inc](https://ctcfinder.com/tester/avid-smog-inc-ontario/)** — 1409 W Holt Bl, Ontario, CA 91762 — (909) 292-6926 — 5 mi. Services: mobile testing, OBD testing. - **[Brian Tran](https://ctcfinder.com/tester/brian-tran-ontario/)** — Ontario, CA 91762 — (714) 417-3611 — 5 mi. Services: OBD testing. - **[Carlos Pinal](https://ctcfinder.com/tester/carlos-pinal-ontario/)** — Ontario, CA 91762 — (626) 620-3167 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Chevez Wilber](https://ctcfinder.com/tester/chevez-wilber-ontario/)** — Ontario, CA 91762 — (323) 448-5771 — 5 mi. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in Pomona Los Angeles County has more listed testers than any other county. Seaports and intermodal railyards, including the Ports of Los Angeles and Long Beach, must verify Clean Truck Check compliance at entry or log non-compliant trucks (CARB). ## 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 Pomona? CTC Finder lists 12 testing businesses in Pomona from CARB's public tester list (12 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 Pomona? Yes. 11 listed businesses in Pomona 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 Pomona? 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 - [Montclair](https://ctcfinder.com/testers/san-bernardino-county/montclair/) — 3 listings, 3 mi - [San Dimas](https://ctcfinder.com/testers/los-angeles-county/san-dimas/) — 4 listings, 4 mi - [Claremont](https://ctcfinder.com/testers/los-angeles-county/claremont/) — 4 listings, 5 mi - [Chino](https://ctcfinder.com/testers/san-bernardino-county/chino/) — 9 listings, 6 mi - [La Verne](https://ctcfinder.com/testers/los-angeles-county/la-verne/) — 3 listings, 6 mi - [Upland](https://ctcfinder.com/testers/san-bernardino-county/upland/) — 7 listings, 6 mi - [Walnut](https://ctcfinder.com/testers/los-angeles-county/walnut/) — 3 listings, 6 mi - [Glendora](https://ctcfinder.com/testers/los-angeles-county/glendora/) — 5 listings, 7 mi - [Ontario](https://ctcfinder.com/testers/san-bernardino-county/ontario/) — 31 listings, 8 mi - [West Covina](https://ctcfinder.com/testers/los-angeles-county/west-covina/) — 5 listings, 9 mi