---
title: "Deyoung Automotive INC — Clean Truck Check, Canoga Park, CA"
description: "Deyoung Automotive INC in Canoga Park, CA is on CARB's Clean Truck Check tester list. Offers OBD testing, smoke opacity (non-OBD) testing, motorhome testing…"
url: "https://ctcfinder.com/tester/deyoung-automotive-inc-canoga-park/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Deyoung Automotive INC

Clean Truck Check tester in Canoga Park, 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 | 21925 Sherman Way, Canoga Park, CA 91303 |
| County | Los Angeles County |
| Phone | (818) 340-6166 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Deyoung Automotive INC 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 |

If you need a tester at your yard, the nearest listed tester that offers mobile testing is Cal State CTC Services in Canoga Park, about 1 mile away. [See listing](https://ctcfinder.com/tester/cal-state-ctc-services-canoga-park/).

## Clean Truck Check testers in Los Angeles County

Deyoung Automotive INC 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.

## 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 Deyoung Automotive INC offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [Cal State CTC Services](https://ctcfinder.com/tester/cal-state-ctc-services-canoga-park/) (about 1 mile).

### Can Deyoung Automotive INC test a 2012 or older diesel truck?

Yes. Deyoung Automotive INC 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 Deyoung Automotive INC charge for a Clean Truck Check?

Deyoung Automotive INC has not published prices with us; call (818) 340-6166 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 Deyoung Automotive INC a CARB-credentialed tester?

Deyoung Automotive INC 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

- **[Cal State CTC Services](https://ctcfinder.com/tester/cal-state-ctc-services-canoga-park/)** — 21024 Sherman Way, Canoga Park, CA 91303 — (818) 807-4999 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Acosta CTC Check](https://ctcfinder.com/tester/acosta-ctc-check-woodland-hills/)** — 23341 Ostronic Dr, Woodland Hills, CA 91367 — (785) 375-8535 — 2 mi. Services: mobile testing, OBD testing.
- **[Andranik Shamamyan](https://ctcfinder.com/tester/andranik-shamamyan-reseda/)** — Reseda, CA 91335 — (818) 427-2726 — 3 mi. Services: mobile testing, OBD testing.
- **[Brendan Wyrock](https://ctcfinder.com/tester/brendan-wyrock-reseda/)** — Reseda, CA 91335 — (818) 531-6090 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Eric Seaghat](https://ctcfinder.com/tester/eric-seaghat-reseda/)** — Reseda, CA 91335 — (818) 307-6011 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[INSTANT Truck Compliant](https://ctcfinder.com/tester/instant-truck-compliant-reseda/)** — 18747 sherman way 224, Reseda, CA 91335 — (818) 916-3153 — 3 mi. Services: mobile testing, OBD testing.