---
title: "Triple F Industries LLC — Clean Truck Check, Hopland, CA"
description: "Triple F Industries LLC in Hopland, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/triple-f-industries-llc-hopland/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Triple F Industries LLC

Clean Truck Check tester in Hopland, CA (Mendocino 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 | 8500 Highway 175, Hopland, CA 95449 |
| County | Mendocino County |
| Phone | (707) 331-3039 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Triple F Industries LLC 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 RK Land Management in Lakeport, about 12 miles away. [See listing](https://ctcfinder.com/tester/rk-land-management-lakeport/).

## Clean Truck Check testers in Mendocino County

Triple F Industries LLC is one of 8 testing businesses in Mendocino County 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 Triple F Industries LLC offer mobile Clean Truck Check testing?

Yes. Triple F Industries LLC 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 Triple F Industries LLC test a 2012 or older diesel truck?

Triple F Industries LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [RK Land Management](https://ctcfinder.com/tester/rk-land-management-lakeport/) (about 12 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Triple F Industries LLC charge for a Clean Truck Check?

Triple F Industries LLC has not published prices with us; call (707) 331-3039 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 Triple F Industries LLC a CARB-credentialed tester?

Triple F Industries LLC 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

- **[North Coast Mowers](https://ctcfinder.com/tester/north-coast-mowers-hopland/)** — 12350 Hewlitt Rd., Hopland, CA 95449 — (707) 391-7804 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[RK Land Management](https://ctcfinder.com/tester/rk-land-management-lakeport/)** — 2305 Big Valley Rd, Lakeport, CA 95453 — (707) 245-1737 — 12 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Independent Bookkeeper](https://ctcfinder.com/tester/independent-bookkeeper-ukiah/)** — Ukiah, CA 95482 — (707) 367-2699 — 16 mi. Services: mobile testing, OBD testing.
- **[Peterson Cat](https://ctcfinder.com/tester/peterson-cat-ukiah/)** — Ukiah, CA 95482 — (707) 367-8242 — 16 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Elite Emissions and Repair](https://ctcfinder.com/tester/elite-emissions-and-repair-kelseyville/)** — 3560 Big Valley Rd, Kelseyville, CA 95451 — (707) 533-6371 — 18 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Performance Pemf](https://ctcfinder.com/tester/performance-pemf-cazadero/)** — 1100 Old Duncans Grade Rd, Cazadero, CA 95421 — (707) 480-1646 — 25 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.