---
title: "Randy Bass II — Clean Truck Check, Mcarthur, CA | CTC Finder"
description: "Randy Bass II in Mcarthur, 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/randy-bass-ii-mcarthur/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Randy Bass II

Clean Truck Check tester in Mcarthur, CA (Lassen 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 | Mcarthur, CA 96056 |
| County | Lassen County |
| Phone | (530) 708-2610 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Randy Bass II 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 Warner Mountain Smog in Alturas, about 50 miles away. [See listing](https://ctcfinder.com/tester/warner-mountain-smog-alturas/).

## Clean Truck Check testers in Lassen County

Randy Bass II is one of 5 testing businesses in Lassen County on CARB's public tester list. 4 of them offer mobile testing and 1 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 Randy Bass II offer mobile Clean Truck Check testing?

Yes. Randy Bass II 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 Randy Bass II test a 2012 or older diesel truck?

Randy Bass II does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Warner Mountain Smog](https://ctcfinder.com/tester/warner-mountain-smog-alturas/) (about 50 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Randy Bass II charge for a Clean Truck Check?

Randy Bass II has not published prices with us; call (530) 708-2610 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 Randy Bass II a CARB-credentialed tester?

Randy Bass II 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.