---
title: "Clean Truck Check Testers in Santa Cruz County, CA (18)"
description: "18 CARB-credentialed Clean Truck Check testers in Santa Cruz County, California, across 6 cities. 15 offer mobile testing. Search by city, see phone numbers…"
url: "https://ctcfinder.com/testers/santa-cruz-county/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in Santa Cruz County, California

18 testing businesses in 6 cities; 15 offer mobile testing, 6 do smoke opacity tests, 15 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

- [Watsonville](https://ctcfinder.com/testers/santa-cruz-county/watsonville/) — 10 listings
- [Santa Cruz](https://ctcfinder.com/testers/santa-cruz-county/santa-cruz/) — 3 listings

## Felton

- **[Bay area water](https://ctcfinder.com/tester/bay-area-water-felton/)** — 10861 Creekwood Dr, Felton, CA 95018 — (408) 455-8016. Services: mobile testing, OBD testing.

## Royal Oaks

- **[Betos mobile & truck services LLC](https://ctcfinder.com/tester/betos-mobile-and-truck-services-llc-royal-oaks/)** — 415 Hall Rd, Royal Oaks, CA 95076 — (831) 247-0392. Services: mobile testing, OBD testing.

## Scotts Valley

- **[Tony Varni Equipment Repair](https://ctcfinder.com/tester/tony-varni-equipment-repair-scotts-valley/)** — 886 Lockhart Gulch Rd, Scotts Valley, CA 95066 — (831) 247-9147. Services: mobile testing, OBD testing, motorhome testing.

## Soquel

- **[Santana paving and grading inc mobile](https://ctcfinder.com/tester/santana-paving-and-grading-inc-mobile-soquel/)** — 3912 Mainsail Pl, Soquel, CA 95073 — (831) 970-5420. Services: mobile testing, OBD testing, motorhome testing.
- **[The Truck Inspector, LLC](https://ctcfinder.com/tester/the-truck-inspector-llc-soquel/)** — 999 Old San Jose Rd SF BAY AREA, Soquel, CA 95073 — (831) 332-2272. Services: mobile testing, OBD testing, motorhome testing.


## Frequently asked questions

### How many Clean Truck Check testers are in Santa Cruz County?

CTC Finder lists 18 testing businesses in Santa Cruz County from CARB's public tester list (18 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 Santa Cruz County?

Yes. 15 listed businesses in Santa Cruz 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 Santa Cruz 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/).