---
title: "Clean Truck Check Testers in Nevada County, CA (8)"
description: "8 CARB-credentialed Clean Truck Check testers in Nevada County, California, across 4 cities. 5 offer mobile testing. Search by city, see phone numbers and…"
url: "https://ctcfinder.com/testers/nevada-county/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in Nevada County, California

8 testing businesses in 4 cities; 5 offer mobile testing, 5 do smoke opacity tests, 7 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

- [Nevada City](https://ctcfinder.com/testers/nevada-county/nevada-city/) — 3 listings

## Grass Valley

- **[Cody's Clean Truck Check](https://ctcfinder.com/tester/codys-clean-truck-check-grass-valley/)** — 780 Whispering Pines Ln, Grass Valley, CA 95945 — (530) 277-5833. Services: mobile testing, OBD testing, motorhome testing.
- **[Palmer Enterprises Truck & Auto Repair LLC](https://ctcfinder.com/tester/palmer-enterprises-truck-and-auto-repair-llc-grass-valley/)** — 11352 E Bennett Rd, Grass Valley, CA 95945 — (530) 272-3439. Services: OBD testing.

## Rough and Ready

- **[JTS truck and equipment repair inc](https://ctcfinder.com/tester/jts-truck-and-equipment-repair-inc-rough-and-ready/)** — 17268 Cattle Dr, Rough and Ready, CA 95975 — (530) 615-1219. Services: mobile testing, OBD testing, motorhome testing.

## Truckee

- **[Placer County Carb Tester](https://ctcfinder.com/tester/placer-county-carb-tester-truckee/)** — Truckee, CA 96161 — (916) 243-5089. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.


## Frequently asked questions

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

CTC Finder lists 8 testing businesses in Nevada County from CARB's public tester list (9 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 Nevada County?

Yes. 5 listed businesses in Nevada 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 Nevada 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/).