---
title: "AB Mobile CARB Test & Road Service LLC — Clean Truck Check, Fontana, CA"
description: "AB Mobile CARB Test & Road Service LLC in Fontana, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD)…"
url: "https://ctcfinder.com/tester/ab-mobile-carb-test-and-road-service-llc-fontana/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# AB Mobile CARB Test & Road Service LLC

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 | 7320 GRACE ST, Fontana, CA 92336 |
| County | San Bernardino County |
| Phone | (562) 413-3594 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks AB Mobile CARB Test & Road Service LLC 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 | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Not listed |

## Clean Truck Check testers in San Bernardino County

AB Mobile CARB Test & Road Service LLC 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 AB Mobile CARB Test & Road Service LLC offer mobile Clean Truck Check testing?

Yes. AB Mobile CARB Test & Road Service LLC 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 AB Mobile CARB Test & Road Service LLC test a 2012 or older diesel truck?

Yes. AB Mobile CARB Test & Road Service LLC lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does AB Mobile CARB Test & Road Service LLC charge for a Clean Truck Check?

AB Mobile CARB Test & Road Service LLC has not published prices with us; call (562) 413-3594 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 AB Mobile CARB Test & Road Service LLC a CARB-credentialed tester?

AB Mobile CARB Test & Road Service LLC 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

- **[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.
- **[RDM Carb Testing](https://ctcfinder.com/tester/rdm-carb-testing-fontana/)** — 15741 Athena Dr, Fontana, CA 92336 — (909) 730-4585 — 1 mi. Services: mobile testing, OBD testing.