---
title: "Master's Transportation Inc. Alan Thomas — Clean Truck Check, Fontana, CA"
description: "Master's Transportation Inc. Alan Thomas in Fontana, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing…"
url: "https://ctcfinder.com/tester/masters-transportation-inc-alan-thomas-fontana/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Master's Transportation Inc. Alan Thomas

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 | 11001 Beech Ave, Fontana, CA 92337 |
| County | San Bernardino County |
| Phone | (951) 403-0829 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Master's Transportation Inc. Alan Thomas 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 | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Waraich logistics in Fontana, about 1 mile away. [See listing](https://ctcfinder.com/tester/waraich-logistics-fontana/).

## Clean Truck Check testers in San Bernardino County

Master's Transportation Inc. Alan Thomas 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 Master's Transportation Inc. Alan Thomas offer mobile Clean Truck Check testing?

Yes. Master's Transportation Inc. Alan Thomas 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 Master's Transportation Inc. Alan Thomas test a 2012 or older diesel truck?

Master's Transportation Inc. Alan Thomas does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Waraich logistics](https://ctcfinder.com/tester/waraich-logistics-fontana/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Master's Transportation Inc. Alan Thomas charge for a Clean Truck Check?

Master's Transportation Inc. Alan Thomas has not published prices with us; call (951) 403-0829 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 Master's Transportation Inc. Alan Thomas a CARB-credentialed tester?

Master's Transportation Inc. Alan Thomas 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

- **[GV Trans INC](https://ctcfinder.com/tester/gv-trans-inc-fontana/)** — 14040 Slover Ave, Fontana, CA 92337 — (909) 746-3631 — 1 mi. Services: mobile testing, OBD testing.
- **[Moses Alryan](https://ctcfinder.com/tester/moses-alryan-fontana/)** — Fontana, CA 92337 — (562) 392-2599 — 1 mi. Services: mobile testing, OBD testing.
- **[Ryan Leininger](https://ctcfinder.com/tester/ryan-leininger-fontana/)** — Fontana, CA 92337 — (951) 840-5750 — 1 mi. Services: OBD testing.
- **[Shardae Anderson-Bell](https://ctcfinder.com/tester/shardae-anderson-bell-fontana/)** — Fontana, CA 92337 — (330) 605-6613 — 1 mi. Services: OBD testing.
- **[Sonu Monga](https://ctcfinder.com/tester/sonu-monga-fontana/)** — Fontana, CA 92337 — (909) 550-7000 — 1 mi. Services: mobile testing, OBD testing.
- **[Top Smog](https://ctcfinder.com/tester/top-smog-fontana/)** — 10591 Cherry Ave, Fontana, CA 92337 — (909) 224-2037 — 1 mi. Services: OBD testing, motorhome testing.