---
title: "Jason Fredrickson — Clean Truck Check, Arcata, CA"
description: "Jason Fredrickson in Arcata, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing. Phone, address…"
url: "https://ctcfinder.com/tester/jason-fredrickson-arcata/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Jason Fredrickson

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) 672-4181 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Jason Fredrickson 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 | Not listed |

## Clean Truck Check testers in Humboldt County

Jason Fredrickson 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 Jason Fredrickson offer mobile Clean Truck Check testing?

Yes. Jason Fredrickson 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 Jason Fredrickson test a 2012 or older diesel truck?

Yes. Jason Fredrickson 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 Jason Fredrickson charge for a Clean Truck Check?

Jason Fredrickson has not published prices with us; call (707) 672-4181 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 Jason Fredrickson a CARB-credentialed tester?

Jason Fredrickson 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.
- **[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.
- **[Seth David Mitouer](https://ctcfinder.com/tester/seth-david-mitouer-arcata/)** — Arcata, CA 95521 — (707) 292-2660 — 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.