---
title: "Timothy Turnbull — Clean Truck Check, Sumner, WA"
description: "Timothy Turnbull in Sumner, WA is on CARB's Clean Truck Check tester list. Offers OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/timothy-turnbull-sumner-wa/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Timothy Turnbull

Clean Truck Check tester in Sumner, WA.

> 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 | Sumner, WA 98390 |
| Phone | (509) 770-1438 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Timothy Turnbull 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 Nationwide in Chehalis, about 56 miles away. [See listing](https://ctcfinder.com/tester/airlimits-nationwide-chehalis-wa/).

If you need a tester at your yard, the nearest listed tester that offers mobile testing is kulbir S.Padda in Pacific, about 3 miles away. [See listing](https://ctcfinder.com/tester/kulbir-s-padda-pacific-wa/).

## Clean Truck Check testers in Washington

Timothy Turnbull is one of 17 testing businesses in Washington on CARB's public tester list. 11 of them offer mobile testing and 2 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 Timothy Turnbull offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [kulbir S.Padda](https://ctcfinder.com/tester/kulbir-s-padda-pacific-wa/) (about 3 miles).

### Can Timothy Turnbull test a 2012 or older diesel truck?

Timothy Turnbull does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [AIRLIMITS Nationwide](https://ctcfinder.com/tester/airlimits-nationwide-chehalis-wa/) (about 56 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Timothy Turnbull charge for a Clean Truck Check?

Timothy Turnbull has not published prices with us; call (509) 770-1438 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 Timothy Turnbull a CARB-credentialed tester?

Timothy Turnbull 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

- **[kulbir S.Padda](https://ctcfinder.com/tester/kulbir-s-padda-pacific-wa/)** — Pacific, WA 98047 — (206) 773-6136 — 3 mi. Services: mobile testing, OBD testing.
- **[Ace Relocation Systems](https://ctcfinder.com/tester/ace-relocation-systems-auburn-wa/)** — 1701 Pike Ave #100, Auburn, WA 98001 — (858) 410-2448 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Alexander Hansen](https://ctcfinder.com/tester/alexander-hansen-auburn-wa/)** — Auburn, WA 98092 — (858) 964-8163 — 7 mi. Services: mobile testing, OBD testing.
- **[Vic Express Inc](https://ctcfinder.com/tester/vic-express-inc-buckley-wa/)** — 23149 65th St E, Buckley, WA 98321 — (253) 313-4824 — 8 mi. Services: mobile testing, OBD testing.
- **[Vats Logistics](https://ctcfinder.com/tester/vats-logistics-kent-wa/)** — 10604 SE 243rd Pl, Kent, WA 98030 — (253) 929-9392 — 11 mi. Services: mobile testing, OBD testing.
- **[R.D Truck and Trailer Repair LLC](https://ctcfinder.com/tester/r-d-truck-and-trailer-repair-llc-tacoma-wa/)** — 2205 116th St S, Tacoma, WA 98444 — (206) 209-7109 — 11 mi. Services: mobile testing, OBD testing.