---
title: "Trans-Pro Inc. — Clean Truck Check, Salem, OR | CTC Finder"
description: "Trans-Pro Inc. in Salem, OR is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/trans-pro-inc-salem-or/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Trans-Pro Inc.

Clean Truck Check tester in Salem, 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 | 3820 Brooklake Rd NE, Salem, OR 97303 |
| Phone | (503) 710-0116 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Trans-Pro 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 | 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 AIRLIMITS-Portland OR in Portland, about 37 miles away. [See listing](https://ctcfinder.com/tester/airlimits-portland-or-portland-or/).

## Clean Truck Check testers in Oregon

Trans-Pro Inc. 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 Trans-Pro Inc. offer mobile Clean Truck Check testing?

Yes. Trans-Pro Inc. 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 Trans-Pro Inc. test a 2012 or older diesel truck?

Trans-Pro Inc. 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 37 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Trans-Pro Inc. charge for a Clean Truck Check?

Trans-Pro Inc. has not published prices with us; call (503) 710-0116 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 Trans-Pro Inc. a CARB-credentialed tester?

Trans-Pro 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

- **[Mid State Diesel Repair](https://ctcfinder.com/tester/mid-state-diesel-repair-salem-or/)** — 9065 River Rd NE, Salem, OR 97303 — (805) 414-5147 — 1 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 — 1 mi. Services: OBD testing, motorhome testing.
- **[RPD Services](https://ctcfinder.com/tester/rpd-services-salem-or/)** — 1790 16TH ST SE, Salem, OR 97302 — (503) 581-7695 — 9 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Tree line transport](https://ctcfinder.com/tester/tree-line-transport-turner-or/)** — 6801 3rd St SE, Turner, OR 97392 — (503) 757-1016 — 17 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mechanic Maven](https://ctcfinder.com/tester/mechanic-maven-newberg-or/)** — 3007 E Douglas Ave, Newberg, OR 97132 — (208) 881-2711 — 20 mi. Services: mobile testing, OBD testing.