---
title: "Mobile Compliance Testing — Clean Truck Check, Fair Oaks, CA"
description: "Mobile Compliance Testing in Fair Oaks, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing…"
url: "https://ctcfinder.com/tester/mobile-compliance-testing-fair-oaks/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Mobile Compliance Testing

Clean Truck Check tester in Fair Oaks, CA (Sacramento 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 | Fair Oaks, CA 95628 |
| County | Sacramento County |
| Phone | (916) 538-7777 |
| Website | carbdieseltest.com |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mobile Compliance Testing 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 | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

## Clean Truck Check testers in Sacramento County

Mobile Compliance Testing is one of 131 testing businesses in Sacramento County on CARB's public tester list. 118 of them offer mobile testing and 71 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 Mobile Compliance Testing offer mobile Clean Truck Check testing?

Yes. Mobile Compliance Testing 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 Mobile Compliance Testing test a 2012 or older diesel truck?

Yes. Mobile Compliance Testing lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does Mobile Compliance Testing charge for a Clean Truck Check?

Mobile Compliance Testing has not published prices with us; call (916) 538-7777 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 Mobile Compliance Testing a CARB-credentialed tester?

Mobile Compliance Testing 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

- **[Fleet Rescue](https://ctcfinder.com/tester/fleet-rescue-citrus-heights/)** — 7524 Circuit Dr, Citrus Heights, CA 95610 — (916) 847-3811 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[IKAG Ventures](https://ctcfinder.com/tester/ikag-ventures-citrus-heights/)** — Citrus Heights, CA 95610 — (916) 833-5493 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Speed E Smog](https://ctcfinder.com/tester/speed-e-smog-citrus-heights/)** — 7920 Auburn Blvd, Citrus Heights, CA 95610 — (714) 251-7232 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Vlt Express INC](https://ctcfinder.com/tester/vlt-express-inc-citrus-heights/)** — 7149 Canelo Hills Dr, Citrus Heights, CA 95610 — (916) 580-5909 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Cap City DSL Inspections](https://ctcfinder.com/tester/cap-city-dsl-inspections-orangevale/)** — 8863 Greenback Lane, Orangevale, CA 95662 — (916) 538-7777 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Credentialed tester in Citrus Heights](https://ctcfinder.com/tester/credentialed-tester-in-citrus-heights-citrus-heights/)** — 6121 Tupelo Dr, Citrus Heights, CA — (916) 798-8400 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.