---
title: "SoCal Clean Truck Check Llc — Clean Truck Check, Ontario, CA"
description: "SoCal Clean Truck Check Llc in Ontario, CA is on CARB's Clean Truck Check tester list with 2 credentialed testers. Offers mobile testing, OBD testing, smoke…"
url: "https://ctcfinder.com/tester/socal-clean-truck-check-llc-ontario/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# SoCal Clean Truck Check Llc

Clean Truck Check tester in Ontario, 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 | 1312 N El Dorado Av, Ontario, CA 91764 |
| County | San Bernardino County |
| Phone | (951) 256-6933 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 2 |
| Last verified | 2026-11-01 |

## Which trucks SoCal Clean Truck Check 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 | Yes |

## Clean Truck Check testers in San Bernardino County

SoCal Clean Truck Check 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 Ontario itself there are 31 listed businesses, 30 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 SoCal Clean Truck Check Llc offer mobile Clean Truck Check testing?

Yes. SoCal Clean Truck Check 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 SoCal Clean Truck Check Llc test a 2012 or older diesel truck?

Yes. SoCal Clean Truck Check 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 SoCal Clean Truck Check Llc charge for a Clean Truck Check?

SoCal Clean Truck Check Llc has not published prices with us; call (951) 256-6933 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 SoCal Clean Truck Check Llc a CARB-credentialed tester?

SoCal Clean Truck Check Llc appears on CARB's public Clean Truck Check tester list with 2 credentialed testers, 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

- **[Andrew Gallegos](https://ctcfinder.com/tester/andrew-gallegos-ontario/)** — Ontario, CA 91764 — (909) 919-4606 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Cmax Commercial maintenance](https://ctcfinder.com/tester/cmax-commercial-maintenance-ontario/)** — 316 N Corona Ave, Ontario, CA 91764 — (909) 926-1389 — 1 mi. Services: mobile testing, OBD testing.
- **[Mobile 2u Fleet Service LLC](https://ctcfinder.com/tester/mobile-2u-fleet-service-llc-ontario/)** — 337 N Vineyard Ave, Ontario, CA 91764 — (209) 424-4921 — 1 mi. Services: mobile testing, OBD testing.
- **[Mobile Fleet Test](https://ctcfinder.com/tester/mobile-fleet-test-ontario/)** — 1276 E Flora St, Ontario, CA 91764 — (909) 503-2811 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[MVPS Consultants](https://ctcfinder.com/tester/mvps-consultants-ontario/)** — Ontario, CA 91764 — (909) 781-0546 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Center Lane Transportation, LLC](https://ctcfinder.com/tester/center-lane-transportation-llc-rancho-cucamonga/)** — Rancho Cucamonga, CA 91730 — (619) 598-6998 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.