---
title: "Clean Truck Check Testers in Ridgecrest, CA (3 listed)"
description: "Find 3 CARB-credentialed Clean Truck Check testers in Ridgecrest, Kern County: 2 offer mobile testing, 3 do smoke opacity tests. Phone numbers, services and…"
url: "https://ctcfinder.com/testers/kern-county/ridgecrest/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in Ridgecrest, CA

3 testing businesses in Ridgecrest (Kern County) are on CARB's public Clean Truck Check tester list (3 credentialed testers). 2 offer mobile testing, 3 do smoke opacity tests, 2 test motorhomes.

> 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.

## Testers in Ridgecrest

- **[Brian Farris](https://ctcfinder.com/tester/brian-farris-ridgecrest/)** — Ridgecrest, CA 93555 — (760) 382-5048. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[LG HD testing](https://ctcfinder.com/tester/lg-hd-testing-ridgecrest/)** — 717 N Inyo St, Ridgecrest, CA 93555 — (760) 793-7727. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Nelson's Automotive Inc.](https://ctcfinder.com/tester/nelsons-automotive-inc-ridgecrest/)** — 325 W Inyokern Rd, Ridgecrest, CA 93555 — (760) 446-3568. Services: OBD testing, smoke opacity (non-OBD) testing.


## Trucking in Ridgecrest

Kern County, led by Bakersfield, mixes oil-field service, agriculture and long-haul trucking on SR-99, I-5 and SR-58.

## Cost

Typical published prices in California: OBD test $50–$135 per vehicle; smoke opacity test $190–$200. Prices are set by each tester.

## Frequently asked questions

### How many Clean Truck Check testers are in Ridgecrest?

CTC Finder lists 3 testing businesses in Ridgecrest from CARB's public tester list (3 credentialed testers), last checked November 1, 2026. Listing on CARB's list is optional, so the real number can be higher.

### Is there mobile Clean Truck Check testing in Ridgecrest?

Yes. 2 listed businesses in Ridgecrest offer mobile testing, which means the tester comes to your yard. Use the Mobile filter above to see them.

### How much does a Clean Truck Check test cost in Ridgecrest?

Testers set their own prices. Published prices for an OBD test are usually $50–$135 per vehicle; smoke opacity tests for older trucks often cost more, and mobile testers may add a trip fee. See the [cost guide](https://ctcfinder.com/guide/cost/).

### How often does my truck need a Clean Truck Check test?

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/).

## Nearby cities