---
title: "Chatsworth Smog Check — Clean Truck Check, Chatsworth, CA"
description: "Chatsworth Smog Check in Chatsworth, CA is on CARB's Clean Truck Check tester list. Offers OBD testing, motorhome testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/chatsworth-smog-check-chatsworth/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Chatsworth Smog Check

Clean Truck Check tester in Chatsworth, 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 | 10034 Canoga Ave, Chatsworth, CA 91311 |
| County | Los Angeles County |
| Phone | (818) 489-9491 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Chatsworth 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 | 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 Prodigal Daughters Holding in Chatsworth, about 1 mile away. [See listing](https://ctcfinder.com/tester/prodigal-daughters-holding-chatsworth/).

If you need a tester at your yard, the nearest listed tester that offers mobile testing is EcoTechWorld Inc in Chatsworth, about 1 mile away. [See listing](https://ctcfinder.com/tester/ecotechworld-inc-chatsworth/).

## Clean Truck Check testers in Los Angeles County

Chatsworth 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 Chatsworth itself there are 4 listed businesses, 3 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 Chatsworth Smog Check 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 [EcoTechWorld Inc](https://ctcfinder.com/tester/ecotechworld-inc-chatsworth/) (about 1 mile).

### Can Chatsworth Smog Check test a 2012 or older diesel truck?

Chatsworth Smog Check does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Prodigal Daughters Holding](https://ctcfinder.com/tester/prodigal-daughters-holding-chatsworth/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Chatsworth Smog Check charge for a Clean Truck Check?

Chatsworth Smog Check has not published prices with us; call (818) 489-9491 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 Chatsworth Smog Check a CARB-credentialed tester?

Chatsworth 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

- **[EcoTechWorld Inc](https://ctcfinder.com/tester/ecotechworld-inc-chatsworth/)** — 21356 Nordhoff St Suite 110, Chatsworth, CA 91311 — (323) 633-5490 — 1 mi. Services: mobile testing, OBD testing.
- **[Prodigal Daughters Holding](https://ctcfinder.com/tester/prodigal-daughters-holding-chatsworth/)** — Chatsworth, CA 91311 — (760) 810-2656 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Woodys Automotive](https://ctcfinder.com/tester/woodys-automotive-chatsworth/)** — 21800 Lassen St Suite C, Chatsworth, CA 91311 — (323) 353-3797 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Two Kings Compliance](https://ctcfinder.com/tester/two-kings-compliance-porter-ranch/)** — 19360 Rinaldi St Ste 769, Porter Ranch, CA 91326 — (310) 261-2141 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Fredrico Williams](https://ctcfinder.com/tester/fredrico-williams-northridge/)** — Northridge, CA 91324 — (619) 902-8069 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Big Rig Smog](https://ctcfinder.com/tester/big-rig-smog-simi-valley/)** — 4212 E Los Angeles Ave, Simi Valley, CA 93063 — (805) 638-3911 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.