---
title: "Diesel — Clean Truck Check, Long Beach, CA | CTC Finder"
description: "Diesel in Long Beach, CA is on CARB's Clean Truck Check tester list. Offers mobile testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/diesel-long-beach/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Diesel

Clean Truck Check tester in Long Beach, 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 | 442 E Janice St, Long Beach, CA 90805 |
| County | Los Angeles County |
| Phone | (562) 335-0781 |
| Mobile testing | Yes |
| OBD testing | No |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Diesel can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Not listed |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Not listed |
| 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 | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is EverRockSmog in Long Beach, about 1 mile away. [See listing](https://ctcfinder.com/tester/everrocksmog-long-beach/).

## Clean Truck Check testers in Los Angeles County

Diesel 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 Long Beach itself there are 26 listed businesses, 24 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 Diesel offer mobile Clean Truck Check testing?

Yes. Diesel 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 Diesel test a 2012 or older diesel truck?

Diesel does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [EverRockSmog](https://ctcfinder.com/tester/everrocksmog-long-beach/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

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

Diesel has not published prices with us; call (562) 335-0781 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 Diesel a CARB-credentialed tester?

Diesel 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

- **[EverRockSmog](https://ctcfinder.com/tester/everrocksmog-long-beach/)** — 455 E Artesia Blvd, Long Beach, CA 90805 — (562) 977-9434 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Kevin Santos](https://ctcfinder.com/tester/kevin-santos-long-beach/)** — Long Beach, CA 90805 — (562) 443-1481 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Long Beach Truck Repair Center](https://ctcfinder.com/tester/long-beach-truck-repair-center-long-beach/)** — 6574 N Paramount Blvd, Long Beach, CA 90805 — (562) 881-6828 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mobile Fleet Compliance Co](https://ctcfinder.com/tester/mobile-fleet-compliance-co-long-beach/)** — 5438 Long Beach Blvd, Long Beach, CA 90805 — (562) 756-1316 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[SoCal Clean Truck Check](https://ctcfinder.com/tester/socal-clean-truck-check-long-beach/)** — 6319 Lemon Avenue, Long Beach, CA 90805 — (562) 507-1314 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Yovanni Nuno](https://ctcfinder.com/tester/yovanni-nuno-long-beach/)** — Long Beach, CA 90805 — (562) 314-6850 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.