---
title: "Charles Allen — Clean Truck Check, Oakhurst, CA | CTC Finder"
description: "Charles Allen in Oakhurst, 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/charles-allen-oakhurst/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Charles Allen

Clean Truck Check tester in Oakhurst, CA (Madera 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 | Oakhurst, CA 93644 |
| County | Madera County |
| Phone | (559) 760-6578 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Charles Allen 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 The Burrow Corp Inc dba Design Electric in Oakhurst, about 1 mile away. [See listing](https://ctcfinder.com/tester/the-burrow-corp-inc-dba-design-electric-oakhurst/).

## Clean Truck Check testers in Madera County

Charles Allen is one of 22 testing businesses in Madera County on CARB's public tester list. 19 of them offer mobile testing and 6 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 Charles Allen offer mobile Clean Truck Check testing?

Yes. Charles Allen 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 Charles Allen test a 2012 or older diesel truck?

Charles Allen does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [The Burrow Corp Inc dba Design Electric](https://ctcfinder.com/tester/the-burrow-corp-inc-dba-design-electric-oakhurst/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Charles Allen charge for a Clean Truck Check?

Charles Allen has not published prices with us; call (559) 760-6578 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 Charles Allen a CARB-credentialed tester?

Charles Allen 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

- **[The Burrow Corp Inc dba Design Electric](https://ctcfinder.com/tester/the-burrow-corp-inc-dba-design-electric-oakhurst/)** — 53318 Road 419, Oakhurst, CA 93644 — (559) 907-2387 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Neal Cook Enterprise LLC](https://ctcfinder.com/tester/neal-cook-enterprise-llc-north-fork/)** — 34553 Northridge Rd, North Fork, CA 93643 — (559) 563-2629 — 15 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Repair-All](https://ctcfinder.com/tester/repair-all-coarsegold/)** — 35472 Wells Rd, Coarsegold, CA 93614 — (559) 304-8611 — 16 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Smith Construction Services LLC](https://ctcfinder.com/tester/smith-construction-services-llc-mariposa/)** — 5347 Cole Rd, Mariposa, CA 95338 — (559) 760-3079 — 22 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.