---
title: "Corvan Morrison III — Clean Truck Check, Anderson, CA"
description: "Corvan Morrison III in Anderson, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and…"
url: "https://ctcfinder.com/tester/corvan-morrison-iii-anderson/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Corvan Morrison III

Clean Truck Check tester in Anderson, CA (Shasta 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 | Anderson, CA 96007 |
| County | Shasta County |
| Phone | (432) 923-9336 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Corvan Morrison III 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 Anderson Smog Shop in Anderson, about 1 mile away. [See listing](https://ctcfinder.com/tester/anderson-smog-shop-anderson/).

## Clean Truck Check testers in Shasta County

Corvan Morrison III is one of 18 testing businesses in Shasta County on CARB's public tester list. 16 of them offer mobile testing and 8 do smoke opacity tests. In Anderson itself there are 7 listed businesses, 7 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 Corvan Morrison III offer mobile Clean Truck Check testing?

Yes. Corvan Morrison III 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 Corvan Morrison III test a 2012 or older diesel truck?

Corvan Morrison III does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Anderson Smog Shop](https://ctcfinder.com/tester/anderson-smog-shop-anderson/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Corvan Morrison III charge for a Clean Truck Check?

Corvan Morrison III has not published prices with us; call (432) 923-9336 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 Corvan Morrison III a CARB-credentialed tester?

Corvan Morrison III 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

- **[Anderson Smog Shop](https://ctcfinder.com/tester/anderson-smog-shop-anderson/)** — 2374 North St, Anderson, CA 96007 — (530) 378-5558 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Dan Palmer Trucking](https://ctcfinder.com/tester/dan-palmer-trucking-anderson/)** — 7211 Sands Ln, Anderson, CA 96007 — (530) 510-3835 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[DAN Palmer Trucking and Repair](https://ctcfinder.com/tester/dan-palmer-trucking-and-repair-anderson/)** — 7211 Sands Ln, Anderson, CA 96007 — (530) 365-6355 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Jamey Howard](https://ctcfinder.com/tester/jamey-howard-anderson/)** — Anderson, CA 96007 — (530) 782-2660 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Pape Kenworth Anderson](https://ctcfinder.com/tester/pape-kenworth-anderson-anderson/)** — Anderson, CA 96007 — (530) 957-6307 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Turner CTC Testing](https://ctcfinder.com/tester/turner-ctc-testing-anderson/)** — 1307 Aspen Dr, Anderson, CA 96007 — (530) 377-6625 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.