---
title: "Credentialed tester in Wilmington — Clean Truck Check, Wilmington, CA 812 Cristobal Ave"
description: "Credentialed tester in Wilmington in Wilmington, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD)…"
url: "https://ctcfinder.com/tester/credentialed-tester-in-wilmington-wilmington-2/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Credentialed tester in Wilmington

Clean Truck Check tester in Wilmington, 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 | 812 Cristobal Ave, Wilmington, CA |
| County | Los Angeles County |
| Phone | (279) 888-1264 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Credentialed tester in Wilmington 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 |

## Clean Truck Check testers in Los Angeles County

Credentialed tester in Wilmington 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 Wilmington itself there are 12 listed businesses, 9 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 Credentialed tester in Wilmington offer mobile Clean Truck Check testing?

Yes. Credentialed tester in Wilmington 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 Credentialed tester in Wilmington test a 2012 or older diesel truck?

Yes. Credentialed tester in Wilmington 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 Credentialed tester in Wilmington charge for a Clean Truck Check?

Credentialed tester in Wilmington has not published prices with us; call (279) 888-1264 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 Credentialed tester in Wilmington a CARB-credentialed tester?

Credentialed tester in Wilmington 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

- **[Alvaro Sancen](https://ctcfinder.com/tester/alvaro-sancen-wilmington/)** — Wilmington, CA 90744 — (310) 528-4151 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Bellaport Transportation Inc](https://ctcfinder.com/tester/bellaport-transportation-inc-wilmington/)** — 110 North Marine Avenue, Wilmington, CA 90744 — (310) 569-7395 — 1 mi. Services: OBD testing.
- **[Castanedas Engine Rebuild Services](https://ctcfinder.com/tester/castanedas-engine-rebuild-services-wilmington/)** — 1443 E Anaheim St, Wilmington, CA 90744 — (562) 261-7106 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Credentialed tester in Wilmington](https://ctcfinder.com/tester/credentialed-tester-in-wilmington-wilmington/)** — 812 Cristobal Ave, Wilmington, CA — (424) 423-0749 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[CS Mobile Clean Truck Check](https://ctcfinder.com/tester/cs-mobile-clean-truck-check-wilmington/)** — 1206 Lagoon Ave, Wilmington, CA 90744 — (310) 971-7172 — 1 mi. Services: mobile testing, OBD testing.
- **[David Sandoval](https://ctcfinder.com/tester/david-sandoval-wilmington/)** — Wilmington, CA 90744 — (424) 222-1495 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.