---
title: "CARB Emission Services INC — Clean Truck Check, Carson, CA"
description: "CARB Emission Services INC in Carson, CA is on CARB's Clean Truck Check tester list with 2 credentialed testers. Offers mobile testing, OBD testing, smoke…"
url: "https://ctcfinder.com/tester/carb-emission-services-inc-carson/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# CARB Emission Services INC

Clean Truck Check tester in Carson, 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 | 20850 Leapwood Ave, Carson, CA 90746 |
| County | Los Angeles County |
| Phone | (562) 625-0225 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 2 |
| Last verified | 2026-11-01 |

## Which trucks CARB Emission Services INC 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

CARB Emission Services INC 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 Carson itself there are 6 listed businesses, 6 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 CARB Emission Services INC offer mobile Clean Truck Check testing?

Yes. CARB Emission Services INC 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 CARB Emission Services INC test a 2012 or older diesel truck?

Yes. CARB Emission Services INC 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 CARB Emission Services INC charge for a Clean Truck Check?

CARB Emission Services INC has not published prices with us; call (562) 625-0225 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 CARB Emission Services INC a CARB-credentialed tester?

CARB Emission Services INC appears on CARB's public Clean Truck Check tester list with 2 credentialed testers, 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

- **[Ace Mobile Truck Smog](https://ctcfinder.com/tester/ace-mobile-truck-smog-carson/)** — 19403 Galway Ave, Carson, CA 90746 — (917) 573-7599 — 1 mi. Services: mobile testing, OBD testing.
- **[Intermodal Insurance Agency](https://ctcfinder.com/tester/intermodal-insurance-agency-compton/)** — 250 West Walnut Street, Compton, CA 90220 — (213) 503-1330 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Sebastian Ramirez](https://ctcfinder.com/tester/sebastian-ramirez-compton/)** — Compton, CA 90220 — (424) 867-3654 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Brothers Fleet Service, Inc](https://ctcfinder.com/tester/brothers-fleet-service-inc-gardena/)** — 16502 S Broadway, Gardena, CA 90248 — (310) 930-8451 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[M.T. Mobile Field Services](https://ctcfinder.com/tester/m-t-mobile-field-services-gardena/)** — 16323 S Broadway, Gardena, CA 90248 — (310) 515-5009 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Sergio Garcia](https://ctcfinder.com/tester/sergio-garcia-gardena/)** — Gardena, CA 90248 — (310) 502-5229 — 2 mi. Services: mobile testing.