---
title: "Ozden Auto Services Smog and Clean Truck Check — Clean Truck Check, Richmond, CA"
description: "Ozden Auto Services Smog and Clean Truck Check in Richmond, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome…"
url: "https://ctcfinder.com/tester/ozden-auto-services-smog-and-clean-truck-check-richmond/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Ozden Auto Services Smog and Clean Truck Check

Clean Truck Check tester in Richmond, CA (Contra Costa 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 | 864 23rd St, Richmond, CA 94804 |
| County | Contra Costa County |
| Phone | (510) 590-2004 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Ozden Auto Services Smog and Clean Truck 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 Ba Truck Smog in Richmond, about 4 miles away. [See listing](https://ctcfinder.com/tester/ba-truck-smog-richmond/).

## Clean Truck Check testers in Contra Costa County

Ozden Auto Services Smog and Clean Truck Check is one of 61 testing businesses in Contra Costa County on CARB's public tester list. 57 of them offer mobile testing and 38 do smoke opacity tests. In Richmond itself there are 3 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 Ozden Auto Services Smog and Clean Truck Check offer mobile Clean Truck Check testing?

Yes. Ozden Auto Services Smog and Clean Truck 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 Ozden Auto Services Smog and Clean Truck Check test a 2012 or older diesel truck?

Ozden Auto Services Smog and Clean Truck Check does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Ba Truck Smog](https://ctcfinder.com/tester/ba-truck-smog-richmond/) (about 4 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Ozden Auto Services Smog and Clean Truck Check charge for a Clean Truck Check?

Ozden Auto Services Smog and Clean Truck Check has not published prices with us; call (510) 590-2004 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 Ozden Auto Services Smog and Clean Truck Check a CARB-credentialed tester?

Ozden Auto Services Smog and Clean Truck 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

- **[Michael Milat](https://ctcfinder.com/tester/michael-milat-berkeley/)** — Berkeley, CA 94710 — (510) 283-7727 — 4 mi. Services: mobile testing, OBD testing.
- **[Ba Truck Smog](https://ctcfinder.com/tester/ba-truck-smog-richmond/)** — 400 W Gertrude Ave, Richmond, CA 94801 — (707) 731-3411 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Trucking Inc](https://ctcfinder.com/tester/trucking-inc-richmond/)** — 2828 Gonzaga Ave, Richmond, CA 94806 — (209) 737-3137 — 4 mi. Services: mobile testing.
- **[Clean Truck Check](https://ctcfinder.com/tester/clean-truck-check-san-pablo/)** — 1371 23rd St, San Pablo, CA 94806 — (510) 504-7599 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[El Amigo Smog](https://ctcfinder.com/tester/el-amigo-smog-san-pablo/)** — 3024 Giant Rd, San Pablo, CA 94806 — (510) 938-3344 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Jonathan Sordine](https://ctcfinder.com/tester/jonathan-sordine-san-pablo/)** — San Pablo, CA 94806 — (510) 241-6894 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.