---
title: "Michael Attema — Clean Truck Check, Ventura, CA | CTC Finder"
description: "Michael Attema in Ventura, 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/michael-attema-ventura/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Michael Attema

Clean Truck Check tester in Ventura, CA (Ventura 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 | Ventura, CA 93004 |
| County | Ventura County |
| Phone | (805) 797-0570 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Michael Attema 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 MP Enterprises in Ventura, about 1 mile away. [See listing](https://ctcfinder.com/tester/mp-enterprises-ventura/).

## Clean Truck Check testers in Ventura County

Michael Attema is one of 68 testing businesses in Ventura County on CARB's public tester list. 61 of them offer mobile testing and 21 do smoke opacity tests. In Ventura itself there are 14 listed businesses, 14 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 Michael Attema offer mobile Clean Truck Check testing?

Yes. Michael Attema 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 Michael Attema test a 2012 or older diesel truck?

Michael Attema does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [MP Enterprises](https://ctcfinder.com/tester/mp-enterprises-ventura/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Michael Attema charge for a Clean Truck Check?

Michael Attema has not published prices with us; call (805) 797-0570 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 Michael Attema a CARB-credentialed tester?

Michael Attema 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

- **[Macias Mobile Repair](https://ctcfinder.com/tester/macias-mobile-repair-ventura/)** — Ventura, CA 93004 — (760) 560-6523 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[MP Enterprises](https://ctcfinder.com/tester/mp-enterprises-ventura/)** — 9059 Neath St, Ventura, CA 93004 — (805) 797-4438 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Pablo Lefort](https://ctcfinder.com/tester/pablo-lefort-ventura/)** — Ventura, CA 93004 — (805) 407-8773 — 1 mi. Services: mobile testing, OBD testing.
- **[Robert Logan](https://ctcfinder.com/tester/robert-logan-ventura/)** — Ventura, CA 93004 — (805) 891-7197 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Russell Repairs](https://ctcfinder.com/tester/russell-repairs-ventura/)** — Ventura, CA 93004 — (805) 320-3038 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Conley Clean Truck Check](https://ctcfinder.com/tester/conley-clean-truck-check-oxnard/)** — 456 Walnut Dr, Oxnard, CA 93036 — (805) 766-9866 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.