---
title: "Seth David Mitouer — Clean Truck Check, Arcata, CA"
description: "Seth David Mitouer in Arcata, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/seth-david-mitouer-arcata/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Seth David Mitouer

Clean Truck Check tester in Arcata, CA (Humboldt County).

> 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 | Arcata, CA 95521 |
| County | Humboldt County |
| Phone | (707) 292-2660 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Seth David Mitouer 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 | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

## Clean Truck Check testers in Humboldt County

Seth David Mitouer is one of 20 testing businesses in Humboldt County on CARB's public tester list. 16 of them offer mobile testing and 13 do smoke opacity tests. In Arcata itself there are 4 listed businesses, 4 of them mobile.

## 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 Seth David Mitouer offer mobile Clean Truck Check testing?

Yes. Seth David Mitouer 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 Seth David Mitouer test a 2012 or older diesel truck?

Yes. Seth David Mitouer lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does Seth David Mitouer charge for a Clean Truck Check?

Seth David Mitouer has not published prices with us; call (707) 292-2660 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 Seth David Mitouer a CARB-credentialed tester?

Seth David Mitouer 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

- **[Cummins](https://ctcfinder.com/tester/cummins-arcata/)** — 5150 BOYD ROAD, Arcata, CA 95521 — (707) 822-7390 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Jason Fredrickson](https://ctcfinder.com/tester/jason-fredrickson-arcata/)** — Arcata, CA 95521 — (707) 672-4181 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Northern Humboldt Union High School Districts](https://ctcfinder.com/tester/northern-humboldt-union-high-school-districts-arcata/)** — 3701 Boyd Rd, Arcata, CA 95521 — (707) 679-8111 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Coast Counties Peterbilt](https://ctcfinder.com/tester/coast-counties-peterbilt-eureka/)** — 2660 Jacobs Ave, Eureka, CA 95501 — (707) 599-7531 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Dan Nordstrom](https://ctcfinder.com/tester/dan-nordstrom-eureka/)** — Eureka, CA 95501 — (707) 845-6772 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Weburg Mobile Diesel LLC](https://ctcfinder.com/tester/weburg-mobile-diesel-llc-eureka/)** — 1817 2nd St, Eureka, CA 95501 — (707) 243-3308 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.