---
title: "Touch of Tism Smog — Clean Truck Check, Martinez, CA"
description: "Touch of Tism Smog in Martinez, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing. Phone…"
url: "https://ctcfinder.com/tester/touch-of-tism-smog-martinez/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Touch of Tism Smog

Clean Truck Check tester in Martinez, CA (Contra Costa 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 | Martinez, CA 94553 |
| County | Contra Costa County |
| Phone | (510) 619-6099 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Touch of Tism Smog 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 | Not listed |

## Clean Truck Check testers in Contra Costa County

Touch of Tism Smog is one of 61 testing businesses in Contra Costa County on CARB's public tester list. 57 of them offer mobile testing and 38 do smoke opacity tests. In Martinez itself there are 7 listed businesses, 6 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 Touch of Tism Smog offer mobile Clean Truck Check testing?

Yes. Touch of Tism Smog 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 Touch of Tism Smog test a 2012 or older diesel truck?

Yes. Touch of Tism Smog 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 Touch of Tism Smog charge for a Clean Truck Check?

Touch of Tism Smog has not published prices with us; call (510) 619-6099 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 Touch of Tism Smog a CARB-credentialed tester?

Touch of Tism Smog 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

- **[CD & Power](https://ctcfinder.com/tester/cd-and-power-martinez/)** — 150 Nardi Ln, Martinez, CA 94553 — (925) 387-9600 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Guys Smog Inc](https://ctcfinder.com/tester/guys-smog-inc-martinez/)** — 906 Alhambra Ave, Martinez, CA 94553 — (925) 285-9698 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Kagwest Energy](https://ctcfinder.com/tester/kagwest-energy-martinez/)** — Martinez, CA 94553 — (760) 960-7547 — 1 mi. Services: OBD testing.
- **[Mobile Golden State Emissions Testing](https://ctcfinder.com/tester/mobile-golden-state-emissions-testing-martinez/)** — 142 Fig Tree Lane, Martinez, CA 94553 — (925) 354-4370 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[My Mobile Mechanic Inc](https://ctcfinder.com/tester/my-mobile-mechanic-inc-martinez/)** — 827 Arnold Dr Suite 4, Martinez, CA 94553 — (510) 760-1115 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Swenson's Mobile Fleet Repair](https://ctcfinder.com/tester/swensons-mobile-fleet-repair-martinez/)** — 2508 Pacheco Blvd, Martinez, CA 94553 — (925) 708-5535 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.