---
title: "Mobile Diesel Smog Check — Clean Truck Check, La Puente, CA"
description: "Mobile Diesel Smog Check in La Puente, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing…"
url: "https://ctcfinder.com/tester/mobile-diesel-smog-check-la-puente/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Mobile Diesel Smog Check

Clean Truck Check tester in La Puente, CA (Los Angeles 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 | 15911 Hill St, La Puente, CA 91744 |
| County | Los Angeles County |
| Phone | (626) 366-9599 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mobile Diesel Smog Check 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 Los Angeles County

Mobile Diesel Smog Check is one of 516 testing businesses in Los Angeles County on CARB's public tester list. 465 of them offer mobile testing and 190 do smoke opacity tests. In La Puente itself there are 6 listed businesses, 5 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 Mobile Diesel Smog Check offer mobile Clean Truck Check testing?

Yes. Mobile Diesel Smog Check 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 Mobile Diesel Smog Check test a 2012 or older diesel truck?

Yes. Mobile Diesel Smog Check 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 Mobile Diesel Smog Check charge for a Clean Truck Check?

Mobile Diesel Smog Check has not published prices with us; call (626) 366-9599 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 Mobile Diesel Smog Check a CARB-credentialed tester?

Mobile Diesel Smog Check 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

- **[Joe Chavarin](https://ctcfinder.com/tester/joe-chavarin-la-puente/)** — La Puente, CA 91744 — (323) 854-9781 — 1 mi. Services: mobile testing, OBD testing.
- **[Jose Carrillo](https://ctcfinder.com/tester/jose-carrillo-la-puente/)** — La Puente, CA 91744 — (626) 251-7676 — 1 mi. Services: mobile testing, OBD testing.
- **[Rolling Sockets LLC](https://ctcfinder.com/tester/rolling-sockets-llc-la-puente/)** — 226 N Sandalwood Ave, La Puente, CA 91744 — (626) 420-3225 — 1 mi. Services: mobile testing, OBD testing.
- **[The Smog Master](https://ctcfinder.com/tester/the-smog-master-la-puente/)** — 322 N Sunset Ave, La Puente, CA 91744 — (626) 260-8596 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[California CARB Check](https://ctcfinder.com/tester/california-carb-check-west-covina/)** — 2329 E Regina St, West Covina, CA 91792 — (626) 736-7797 — 2 mi. Services: mobile testing, OBD testing.
- **[Joseph Avila-Castro](https://ctcfinder.com/tester/joseph-avila-castro-west-covina/)** — West Covina, CA 91792 — (626) 383-3036 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.