---
title: "Scott Valley Disposal Inc. — Clean Truck Check, Fort Jones, CA"
description: "Scott Valley Disposal Inc. in Fort Jones, CA is on CARB's Clean Truck Check tester list. Offers OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/scott-valley-disposal-inc-fort-jones/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Scott Valley Disposal Inc.

Clean Truck Check tester in Fort Jones, CA (Siskiyou County).

> 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.

| Field | Value |
|---|---|
| Location | 11217 N State Highway 3, Fort Jones, CA 96032 |
| County | Siskiyou County |
| Phone | (530) 598-1188 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Scott Valley Disposal Inc. can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

If you need a tester at your yard, the nearest listed tester that offers mobile testing is A1 automotive in Yreka, about 20 miles away. [See listing](https://ctcfinder.com/tester/a1-automotive-yreka/).

## Clean Truck Check testers in Siskiyou County

Scott Valley Disposal Inc. is one of 7 testing businesses in Siskiyou County on CARB's public tester list. 6 of them offer mobile testing and 4 do smoke opacity tests.

## When your truck is due

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/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/

## Frequently asked questions

### Does Scott Valley Disposal Inc. offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [A1 automotive](https://ctcfinder.com/tester/a1-automotive-yreka/) (about 20 miles).

### Can Scott Valley Disposal Inc. test a 2012 or older diesel truck?

Yes. Scott Valley Disposal Inc. lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does Scott Valley Disposal Inc. charge for a Clean Truck Check?

Scott Valley Disposal Inc. has not published prices with us; call (530) 598-1188 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the [cost guide](https://ctcfinder.com/guide/cost/).

### Is Scott Valley Disposal Inc. a CARB-credentialed tester?

Scott Valley Disposal Inc. appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.

## Other testers nearby

- **[A1 automotive](https://ctcfinder.com/tester/a1-automotive-yreka/)** — 201 E Oberlin Rd, Yreka, CA 96097 — (530) 340-2823 — 20 mi. Services: mobile testing, OBD testing.