---
title: "Morgan Dirt Solutions — Clean Truck Check, Santa Rosa, CA"
description: "Morgan Dirt Solutions in Santa Rosa, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing…"
url: "https://ctcfinder.com/tester/morgan-dirt-solutions-santa-rosa/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Morgan Dirt Solutions

Clean Truck Check tester in Santa Rosa, CA (Sonoma 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 | 112 Mountain View Ave, Santa Rosa, CA 95407 |
| County | Sonoma County |
| Phone | (707) 696-1961 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Morgan Dirt Solutions 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 |

## Clean Truck Check testers in Sonoma County

Morgan Dirt Solutions is one of 28 testing businesses in Sonoma County on CARB's public tester list. 19 of them offer mobile testing and 14 do smoke opacity tests. In Santa Rosa itself there are 17 listed businesses, 11 of them mobile.

## 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 Morgan Dirt Solutions offer mobile Clean Truck Check testing?

Yes. Morgan Dirt Solutions says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.

### Can Morgan Dirt Solutions test a 2012 or older diesel truck?

Yes. Morgan Dirt Solutions 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 Morgan Dirt Solutions charge for a Clean Truck Check?

Morgan Dirt Solutions has not published prices with us; call (707) 696-1961 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 Morgan Dirt Solutions a CARB-credentialed tester?

Morgan Dirt Solutions 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

- **[Chris Patterson](https://ctcfinder.com/tester/chris-patterson-santa-rosa/)** — Santa Rosa, CA 95407 — (707) 292-6644 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Donahue Truck Centers](https://ctcfinder.com/tester/donahue-truck-centers-santa-rosa/)** — 520 E Todd Rd, Santa Rosa, CA 95407 — (707) 975-5080 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Juan Torres](https://ctcfinder.com/tester/juan-torres-santa-rosa/)** — Santa Rosa, CA 95407 — (707) 321-1951 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Karamjit Singh Kaleka](https://ctcfinder.com/tester/karamjit-singh-kaleka-santa-rosa/)** — Santa Rosa, CA 95407 — (510) 565-2401 — 1 mi. Services: not listed.
- **[Lovepreet Singh](https://ctcfinder.com/tester/lovepreet-singh-santa-rosa/)** — Santa Rosa, CA 95407 — (707) 623-0393 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Smile Trucking](https://ctcfinder.com/tester/smile-trucking-santa-rosa/)** — 3856 Santa Rosa Ave, Santa Rosa, CA 95407 — (707) 867-5028 — 1 mi. Services: OBD testing.