---
title: "William Irvin — Clean Truck Check, Orland, CA | CTC Finder"
description: "William Irvin in Orland, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and nearby…"
url: "https://ctcfinder.com/tester/william-irvin-orland/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# William Irvin

Clean Truck Check tester in Orland, CA (Glenn 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 | Orland, CA 95963 |
| County | Glenn County |
| Phone | (530) 624-0148 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks William Irvin 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 |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is McCURDY'S TRUCK REPAIR, INC in Corning, about 12 miles away. [See listing](https://ctcfinder.com/tester/mccurdys-truck-repair-inc-corning/).

## Clean Truck Check testers in Glenn County

William Irvin is one of 6 testing businesses in Glenn County on CARB's public tester list. 5 of them offer mobile testing and 1 do smoke opacity tests. In Orland 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 William Irvin offer mobile Clean Truck Check testing?

Yes. William Irvin 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 William Irvin test a 2012 or older diesel truck?

William Irvin does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [McCURDY'S TRUCK REPAIR, INC](https://ctcfinder.com/tester/mccurdys-truck-repair-inc-corning/) (about 12 miles). Trucks from 2013 on get an OBD scan instead.

### How much does William Irvin charge for a Clean Truck Check?

William Irvin has not published prices with us; call (530) 624-0148 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 William Irvin a CARB-credentialed tester?

William Irvin 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

- **[Beckham Fabrication and Repair](https://ctcfinder.com/tester/beckham-fabrication-and-repair-orland/)** — 7559 State Highway 32, Orland, CA 95963 — (530) 433-4441 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mikes Mobile Diesel Smog Check](https://ctcfinder.com/tester/mikes-mobile-diesel-smog-check-orland/)** — 6721 County Road 20, Orland, CA 95963 — (530) 519-5670 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Ryan Karr](https://ctcfinder.com/tester/ryan-karr-orland/)** — Orland, CA 95963 — (530) 521-1202 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[McCURDY'S TRUCK REPAIR, INC](https://ctcfinder.com/tester/mccurdys-truck-repair-inc-corning/)** — 23162 South Ave, Corning, CA 96021 — (530) 824-3810 — 12 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Mistie Cunningham](https://ctcfinder.com/tester/mistie-cunningham-corning/)** — Corning, CA 96021 — (530) 209-1402 — 12 mi. Services: not listed.
- **[SmithTruckRepair](https://ctcfinder.com/tester/smithtruckrepair-corning/)** — 23050 Sacramento Rd, Corning, CA 96021 — (530) 424-0888 — 12 mi. Services: mobile testing, OBD testing, motorhome testing.