---
title: "Alpha Fleet Solutions LLC — Clean Truck Check, Cotati, CA"
description: "Alpha Fleet Solutions LLC in Cotati, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and…"
url: "https://ctcfinder.com/tester/alpha-fleet-solutions-llc-cotati/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Alpha Fleet Solutions LLC

Clean Truck Check tester in Cotati, 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 | 141 Helman Ln, Cotati, CA 94931 |
| County | Sonoma County |
| Phone | (707) 971-0514 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Alpha Fleet Solutions LLC 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 | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is CalFleet in Cotati, about 1 mile away. [See listing](https://ctcfinder.com/tester/calfleet-cotati/).

## Clean Truck Check testers in Sonoma County

Alpha Fleet Solutions LLC 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.

## 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 Alpha Fleet Solutions LLC offer mobile Clean Truck Check testing?

Yes. Alpha Fleet Solutions LLC 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 Alpha Fleet Solutions LLC test a 2012 or older diesel truck?

Alpha Fleet Solutions LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [CalFleet](https://ctcfinder.com/tester/calfleet-cotati/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Alpha Fleet Solutions LLC charge for a Clean Truck Check?

Alpha Fleet Solutions LLC has not published prices with us; call (707) 971-0514 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 Alpha Fleet Solutions LLC a CARB-credentialed tester?

Alpha Fleet Solutions LLC 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

- **[CalFleet](https://ctcfinder.com/tester/calfleet-cotati/)** — 7911 Redwood Dr Suite 131, Cotati, CA 94931 — (707) 665-5710 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Chris Patterson](https://ctcfinder.com/tester/chris-patterson-santa-rosa/)** — Santa Rosa, CA 95407 — (707) 292-6644 — 5 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 — 5 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 — 5 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 — 5 mi. Services: not listed.
- **[Lovepreet Singh](https://ctcfinder.com/tester/lovepreet-singh-santa-rosa/)** — Santa Rosa, CA 95407 — (707) 623-0393 — 5 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.