---
title: "Clean Truck Check Testers in Solano County, CA (38)"
description: "38 CARB-credentialed Clean Truck Check testers in Solano County, California, across 7 cities. 34 offer mobile testing. Search by city, see phone numbers and…"
url: "https://ctcfinder.com/testers/solano-county/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in Solano County, California

38 testing businesses in 7 cities; 34 offer mobile testing, 21 do smoke opacity tests, 27 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

- [Fairfield](https://ctcfinder.com/testers/solano-county/fairfield/) — 11 listings
- [Dixon](https://ctcfinder.com/testers/solano-county/dixon/) — 8 listings
- [Vallejo](https://ctcfinder.com/testers/solano-county/vallejo/) — 8 listings
- [Vacaville](https://ctcfinder.com/testers/solano-county/vacaville/) — 6 listings

## Benicia

- **[Golden West Smog](https://ctcfinder.com/tester/golden-west-smog-benicia/)** — 4592 E 2nd St Suite D, Benicia, CA 94510 — (707) 342-5075. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Nor Cal Truck Sales & Mfg.](https://ctcfinder.com/tester/nor-cal-truck-sales-and-mfg-benicia/)** — 200 Industrial Way, Benicia, CA 94510 — (925) 787-9735. Services: mobile testing, OBD testing, motorhome testing.

## Rio Vista

- **[Dano Clean Truck](https://ctcfinder.com/tester/dano-clean-truck-rio-vista/)** — 439 Cedar Ridge Dr US, Rio Vista, CA 94571 — (831) 970-2951. Services: mobile testing, OBD testing, motorhome testing.
- **[Warren E. Gomes Excavating Inc.](https://ctcfinder.com/tester/warren-e-gomes-excavating-inc-rio-vista/)** — 551 Airport Rd., Rio Vista, CA 94571 — (707) 688-9432. Services: mobile testing, OBD testing.

## Suisun City

- **[Boyds Fleet Repair](https://ctcfinder.com/tester/boyds-fleet-repair-suisun-city/)** — 1434 Langley Way, Suisun City, CA 94585 — (707) 974-6261. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.


## Frequently asked questions

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

CTC Finder lists 38 testing businesses in Solano County from CARB's public tester list (38 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 Solano County?

Yes. 34 listed businesses in Solano 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 Solano 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/).