---
title: "Certified CTC Testing — Clean Truck Check, Oxnard, CA"
description: "Certified CTC Testing in Oxnard, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and…"
url: "https://ctcfinder.com/tester/certified-ctc-testing-oxnard/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Certified CTC Testing

Clean Truck Check tester in Oxnard, CA (Ventura 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 | 3451 Jupiter Ct, Oxnard, CA 93030 |
| County | Ventura County |
| Phone | (805) 624-0770 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Certified CTC Testing 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 Big Rig Smog II in Oxnard, about 1 mile away. [See listing](https://ctcfinder.com/tester/big-rig-smog-ii-oxnard/).

## Clean Truck Check testers in Ventura County

Certified CTC Testing is one of 68 testing businesses in Ventura County on CARB's public tester list. 61 of them offer mobile testing and 21 do smoke opacity tests. In Oxnard itself there are 22 listed businesses, 19 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 Certified CTC Testing offer mobile Clean Truck Check testing?

Yes. Certified CTC Testing 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 Certified CTC Testing test a 2012 or older diesel truck?

Certified CTC Testing does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Big Rig Smog II](https://ctcfinder.com/tester/big-rig-smog-ii-oxnard/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Certified CTC Testing charge for a Clean Truck Check?

Certified CTC Testing has not published prices with us; call (805) 624-0770 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 Certified CTC Testing a CARB-credentialed tester?

Certified CTC Testing 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

- **[Big Rig Smog II](https://ctcfinder.com/tester/big-rig-smog-ii-oxnard/)** — 202 S Oxnard Blvd, Oxnard, CA 93030 — (805) 638-3911 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Ivan Juarez](https://ctcfinder.com/tester/ivan-juarez-oxnard/)** — Oxnard, CA 93030 — (805) 946-8357 — 1 mi. Services: mobile testing, OBD testing.
- **[J.J.'s Smog](https://ctcfinder.com/tester/j-j-s-smog-oxnard/)** — 1281 S Oxnard Blvd, Oxnard, CA 93030 — (805) 216-5284 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Juarez Clean Truck Check](https://ctcfinder.com/tester/juarez-clean-truck-check-oxnard/)** — 950 Mountain View Ave, Oxnard, CA 93030 — (805) 910-7116 — 1 mi. Services: mobile testing, OBD testing.
- **[Marvin E Lopez](https://ctcfinder.com/tester/marvin-e-lopez-oxnard/)** — Oxnard, CA 93030 — (805) 236-6036 — 1 mi. Services: mobile testing, OBD testing.
- **[Mobile Opacity Testing](https://ctcfinder.com/tester/mobile-opacity-testing-oxnard/)** — 512 Niveo Lane 512 Niveo Lane, Oxnard, CA 93030 — (805) 612-5243 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.