---
title: "MA Unoin Trucking LLC — Clean Truck Check, Phoenix, AZ"
description: "MA Unoin Trucking LLC in Phoenix, AZ is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/ma-unoin-trucking-llc-phoenix-az/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# MA Unoin Trucking LLC

Clean Truck Check tester in Phoenix, AZ.

> 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 | Phoenix, AZ 85032 |
| Phone | (602) 884-4848 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks MA Unoin Trucking 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 | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Egbon Fleet in Phoenix, about 8 miles away. [See listing](https://ctcfinder.com/tester/egbon-fleet-phoenix-az/).

## Clean Truck Check testers in Arizona

MA Unoin Trucking LLC is one of 43 testing businesses in Arizona on CARB's public tester list. 36 of them offer mobile testing and 9 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 MA Unoin Trucking LLC offer mobile Clean Truck Check testing?

Yes. MA Unoin Trucking 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 MA Unoin Trucking LLC test a 2012 or older diesel truck?

MA Unoin Trucking LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Egbon Fleet](https://ctcfinder.com/tester/egbon-fleet-phoenix-az/) (about 8 miles). Trucks from 2013 on get an OBD scan instead.

### How much does MA Unoin Trucking LLC charge for a Clean Truck Check?

MA Unoin Trucking LLC has not published prices with us; call (602) 884-4848 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 MA Unoin Trucking LLC a CARB-credentialed tester?

MA Unoin Trucking 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

- **[AZ Certified Carb CLean Truck Check](https://ctcfinder.com/tester/az-certified-carb-clean-truck-check-phoenix-az/)** — 21001 N Tatum Blvd Ste 1630-979, Phoenix, AZ 85050 — (480) 433-9900 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[PLV Logistics LLC](https://ctcfinder.com/tester/plv-logistics-llc-phoenix-az/)** — 21001 N Tatum Blvd Ste 1630-979, Phoenix, AZ 85050 — (480) 369-6720 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[V Freight LLC](https://ctcfinder.com/tester/v-freight-llc-phoenix-az/)** — 21001 N Tatum Blvd Ste 1630-979, Phoenix, AZ 85050 — (602) 405-9220 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Egbon Fleet](https://ctcfinder.com/tester/egbon-fleet-phoenix-az/)** — 2345 E Thomas Rd Suite 100, Phoenix, AZ 85016 — (833) 605-3003 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[AZ Mobile CARB Clean Truck Check](https://ctcfinder.com/tester/az-mobile-carb-clean-truck-check-phoenix-az/)** — 515 East Carefree Highway, Phoenix, AZ 85085 — (480) 290-0013 — 10 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Global Roadside Diagnostics](https://ctcfinder.com/tester/global-roadside-diagnostics-glendale-az/)** — 5919 W Tina Ln, Glendale, AZ 85310 — (602) 380-7097 — 10 mi. Services: mobile testing, OBD testing, motorhome testing.