---
title: "Orange County Diesel Smog — Clean Truck Check, Garden Grove, CA"
description: "Orange County Diesel Smog in Garden Grove, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address…"
url: "https://ctcfinder.com/tester/orange-county-diesel-smog-garden-grove/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Orange County Diesel Smog

Clean Truck Check tester in Garden Grove, CA (Orange 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 | 12002 Cliffwood Ave, Garden Grove, CA 92840 |
| County | Orange County |
| Phone | (714) 486-6263 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Orange County Diesel Smog 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 Vonic Fleet Services in Anaheim, about 2 miles away. [See listing](https://ctcfinder.com/tester/vonic-fleet-services-anaheim/).

## Clean Truck Check testers in Orange County

Orange County Diesel Smog is one of 159 testing businesses in Orange County on CARB's public tester list. 146 of them offer mobile testing and 84 do smoke opacity tests. In Garden Grove itself there are 10 listed businesses, 10 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 Orange County Diesel Smog offer mobile Clean Truck Check testing?

Yes. Orange County Diesel Smog 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 Orange County Diesel Smog test a 2012 or older diesel truck?

Orange County Diesel Smog does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Vonic Fleet Services](https://ctcfinder.com/tester/vonic-fleet-services-anaheim/) (about 2 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Orange County Diesel Smog charge for a Clean Truck Check?

Orange County Diesel Smog has not published prices with us; call (714) 486-6263 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 Orange County Diesel Smog a CARB-credentialed tester?

Orange County Diesel Smog 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

- **[Danielson's Express Inc](https://ctcfinder.com/tester/danielsons-express-inc-anaheim/)** — Anaheim, CA 92802 — (714) 395-3025 — 2 mi. Services: mobile testing, OBD testing.
- **[Vonic Fleet Services](https://ctcfinder.com/tester/vonic-fleet-services-anaheim/)** — 1430 W Broadway, Anaheim, CA 92802 — (714) 533-3333 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[CNV smog check](https://ctcfinder.com/tester/cnv-smog-check-garden-grove/)** — 13182 Garden Grove Blvd, Garden Grove, CA 92843 — (714) 566-5817 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Elva Grimaldo](https://ctcfinder.com/tester/elva-grimaldo-garden-grove/)** — Garden Grove, CA 92843 — (714) 488-5546 — 2 mi. Services: mobile testing, OBD testing.
- **[Sabian Hamam](https://ctcfinder.com/tester/sabian-hamam-garden-grove/)** — Garden Grove, CA 92843 — (714) 493-7597 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Shawn Truong](https://ctcfinder.com/tester/shawn-truong-garden-grove/)** — Garden Grove, CA 92843 — (714) 397-8025 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.