---
title: "Tree line transport — Clean Truck Check, Turner, OR"
description: "Tree line transport in Turner, OR is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and nearby…"
url: "https://ctcfinder.com/tester/tree-line-transport-turner-or/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Tree line transport

Clean Truck Check tester in Turner, OR.

> 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 | 6801 3rd St SE, Turner, OR 97392 |
| Phone | (503) 757-1016 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Tree line transport 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 AIRLIMITS-Portland OR in Portland, about 52 miles away. [See listing](https://ctcfinder.com/tester/airlimits-portland-or-portland-or/).

## Clean Truck Check testers in Oregon

Tree line transport is one of 25 testing businesses in Oregon on CARB's public tester list. 21 of them offer mobile testing and 6 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 Tree line transport offer mobile Clean Truck Check testing?

Yes. Tree line transport 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 Tree line transport test a 2012 or older diesel truck?

Tree line transport does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [AIRLIMITS-Portland OR](https://ctcfinder.com/tester/airlimits-portland-or-portland-or/) (about 52 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Tree line transport charge for a Clean Truck Check?

Tree line transport has not published prices with us; call (503) 757-1016 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 Tree line transport a CARB-credentialed tester?

Tree line transport 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

- **[RPD Services](https://ctcfinder.com/tester/rpd-services-salem-or/)** — 1790 16TH ST SE, Salem, OR 97302 — (503) 581-7695 — 10 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[RWC group](https://ctcfinder.com/tester/rwc-group-albany-or/)** — 1720 Fescue St SE, Albany, OR 97322 — (541) 520-6706 — 12 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mid State Diesel Repair](https://ctcfinder.com/tester/mid-state-diesel-repair-salem-or/)** — 9065 River Rd NE, Salem, OR 97303 — (805) 414-5147 — 17 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Premier Truck Group Salem Oregon](https://ctcfinder.com/tester/premier-truck-group-salem-oregon-salem-or/)** — 4060 Interstate Pl NE, Salem, OR 97303 — (503) 463-6303 — 17 mi. Services: OBD testing, motorhome testing.
- **[Trans-Pro Inc.](https://ctcfinder.com/tester/trans-pro-inc-salem-or/)** — 3820 Brooklake Rd NE, Salem, OR 97303 — (503) 710-0116 — 17 mi. Services: mobile testing, OBD testing.