---
title: "East TN Carb Testers — Clean Truck Check, Knoxville, TN"
description: "East TN Carb Testers in Knoxville, TN is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and…"
url: "https://ctcfinder.com/tester/east-tn-carb-testers-knoxville-tn/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# East TN Carb Testers

Clean Truck Check tester in Knoxville, TN.

> 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 | 9984 Martha Knight Cir, Knoxville, TN 37932 |
| Phone | (865) 203-4060 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks East TN Carb Testers 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 |

## Clean Truck Check testers in Tennessee

East TN Carb Testers is one of 10 testing businesses in Tennessee on CARB's public tester list. 8 of them offer mobile testing and 4 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 East TN Carb Testers offer mobile Clean Truck Check testing?

Yes. East TN Carb Testers 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 East TN Carb Testers test a 2012 or older diesel truck?

East TN Carb Testers does not list smoke opacity testing, which older non-OBD diesel trucks need. Trucks from 2013 on get an OBD scan instead.

### How much does East TN Carb Testers charge for a Clean Truck Check?

East TN Carb Testers has not published prices with us; call (865) 203-4060 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 East TN Carb Testers a CARB-credentialed tester?

East TN Carb Testers 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

- **[Green Valley Transportation](https://ctcfinder.com/tester/green-valley-transportation-knoxville-tn/)** — 608 Simmons Rd, Knoxville, TN 37932 — (623) 986-5551 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Wyrefree COM LLC](https://ctcfinder.com/tester/wyrefree-com-llc-knoxville-tn/)** — 9234 Kingston Pike, Knoxville, TN 37922 — (610) 570-9655 — 7 mi. Services: mobile testing, OBD testing.