---
title: "Clean Truck Check Testers in Yuba County, CA (8)"
description: "8 CARB-credentialed Clean Truck Check testers in Yuba County, California, across 4 cities. 6 offer mobile testing. Search by city, see phone numbers and…"
url: "https://ctcfinder.com/testers/yuba-county/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in Yuba County, California

8 testing businesses in 4 cities; 6 offer mobile testing, 2 do smoke opacity tests, 5 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.

## City pages

- [Marysville](https://ctcfinder.com/testers/yuba-county/marysville/) — 3 listings

## Brownsville

- **[HES Emergency Response LLC](https://ctcfinder.com/tester/hes-emergency-response-llc-brownsville/)** — 8889 La Porte Rd, Brownsville, CA 95919 — (916) 820-9504. Services: mobile testing, OBD testing.
- **[Sparks Repair](https://ctcfinder.com/tester/sparks-repair-brownsville/)** — 17479 New York House Rd, Brownsville, CA 95919 — (530) 718-9421. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Olivehurst

- **[Affordable C.A.R.B Testing](https://ctcfinder.com/tester/affordable-c-a-r-b-testing-olivehurst/)** — 2040 Newport Ct, Olivehurst, CA 95961 — (916) 370-2379. Services: mobile testing, OBD testing.

## Wheatland

- **[Guynes Equipment](https://ctcfinder.com/tester/guynes-equipment-wheatland/)** — 1658 Oakley Ln, Wheatland, CA 95692 — (530) 237-6427. Services: mobile testing, OBD testing, motorhome testing.
- **[Wheatland Smog and Repair](https://ctcfinder.com/tester/wheatland-smog-and-repair-wheatland/)** — 407 Main St, Wheatland, CA 95692 — (530) 308-2479. Services: OBD testing, motorhome testing.


## Frequently asked questions

### How many Clean Truck Check testers are in Yuba County?

CTC Finder lists 8 testing businesses in Yuba County from CARB's public tester list (8 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 Yuba County?

Yes. 6 listed businesses in Yuba County 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 Yuba County?

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/).