--- title: "RDM Carb Testing — Clean Truck Check, Fontana, CA" description: "RDM Carb Testing in Fontana, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers." url: "https://ctcfinder.com/tester/rdm-carb-testing-fontana/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # RDM Carb Testing Clean Truck Check tester in Fontana, CA (San Bernardino County). > 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. | Field | Value | |---|---| | Location | 15741 Athena Dr, Fontana, CA 92336 | | County | San Bernardino County | | Phone | (909) 730-4585 | | Mobile testing | Yes | | OBD testing | Yes | | Smoke opacity (non-OBD) | No | | Motorhomes | No | | Credentialed testers | 1 | | Last verified | 2026-11-01 | ## Which trucks RDM Carb Testing can test | Your vehicle | Test required | This tester | |---|---|---| | Diesel, model year 2013 or newer | OBD scan | Yes | | Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes | | Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Not listed | | California-registered motorhome | Same test as above by engine year, once a year | Not listed | For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is AB Mobile CARB Test & Road Service LLC in Fontana, about 1 mile away. [See listing](https://ctcfinder.com/tester/ab-mobile-carb-test-and-road-service-llc-fontana/). ## Clean Truck Check testers in San Bernardino County RDM Carb Testing is one of 277 testing businesses in San Bernardino County on CARB's public tester list. 243 of them offer mobile testing and 98 do smoke opacity tests. In Fontana itself there are 49 listed businesses, 37 of them mobile. ## When your truck is due 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/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/ ## Frequently asked questions ### Does RDM Carb Testing offer mobile Clean Truck Check testing? Yes. RDM Carb Testing says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call. ### Can RDM Carb Testing test a 2012 or older diesel truck? RDM Carb Testing does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [AB Mobile CARB Test & Road Service LLC](https://ctcfinder.com/tester/ab-mobile-carb-test-and-road-service-llc-fontana/) (about 1 mile). Trucks from 2013 on get an OBD scan instead. ### How much does RDM Carb Testing charge for a Clean Truck Check? RDM Carb Testing has not published prices with us; call (909) 730-4585 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the [cost guide](https://ctcfinder.com/guide/cost/). ### Is RDM Carb Testing a CARB-credentialed tester? RDM Carb Testing appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS. ## Other testers nearby - **[AB Mobile CARB Test & Road Service LLC](https://ctcfinder.com/tester/ab-mobile-carb-test-and-road-service-llc-fontana/)** — 7320 GRACE ST, Fontana, CA 92336 — (562) 413-3594 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Advance Fleet Solution](https://ctcfinder.com/tester/advance-fleet-solution-fontana/)** — 14947 Cerritos Pl, Fontana, CA 92336 — (626) 664-5239 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Amarjit Badhesa](https://ctcfinder.com/tester/amarjit-badhesa-fontana/)** — Fontana, CA 92336 — (805) 708-6463 — 1 mi. Services: OBD testing, motorhome testing. - **[Mech's Diesel Service](https://ctcfinder.com/tester/mechs-diesel-service-fontana/)** — 17004 Prospect Ave, Fontana, CA 92336 — (909) 368-8644 — 1 mi. Services: mobile testing, OBD testing. - **[ML Diesel Fleet Solution](https://ctcfinder.com/tester/ml-diesel-fleet-solution-fontana/)** — 6136 Catawba Ave, Fontana, CA 92336 — (909) 314-9076 — 1 mi. Services: mobile testing, OBD testing, motorhome testing. - **[PDR LLC](https://ctcfinder.com/tester/pdr-llc-fontana/)** — 7408 Topanga Ave, Fontana, CA 92336 — (909) 997-0750 — 1 mi. Services: OBD testing.