---
title: "Christine's Mobile CTCT — Clean Truck Check, Tracy, CA"
description: "Christine's Mobile CTCT in Tracy, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/christines-mobile-ctct-tracy/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Christine's Mobile CTCT

Clean Truck Check tester in Tracy, CA (San Joaquin 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 | 11794 Mountain View Rd, Tracy, CA 95376 |
| County | San Joaquin County |
| Phone | (209) 221-9575 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Christine's Mobile CTCT 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 San Joaquin County

Christine's Mobile CTCT is one of 124 testing businesses in San Joaquin County on CARB's public tester list. 111 of them offer mobile testing and 53 do smoke opacity tests. In Tracy itself there are 21 listed businesses, 20 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 Christine's Mobile CTCT offer mobile Clean Truck Check testing?

Yes. Christine's Mobile CTCT 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 Christine's Mobile CTCT test a 2012 or older diesel truck?

Yes. Christine's Mobile CTCT 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 Christine's Mobile CTCT charge for a Clean Truck Check?

Christine's Mobile CTCT has not published prices with us; call (209) 221-9575 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 Christine's Mobile CTCT a CARB-credentialed tester?

Christine's Mobile CTCT 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

- **[Diesel Air Defense](https://ctcfinder.com/tester/diesel-air-defense-tracy/)** — 201 S 3rd St, Tracy, CA 95376 — (209) 507-9103 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Joe's Smog Shack Inc.](https://ctcfinder.com/tester/joes-smog-shack-inc-tracy/)** — 500 E 10th St Suite E, Tracy, CA 95376 — (209) 836-4766 — 1 mi. Services: OBD testing, motorhome testing.
- **[Plugnpass LLC](https://ctcfinder.com/tester/plugnpass-llc-tracy/)** — 231 E Clover Rd, Tracy, CA 95376 — (209) 831-8033 — 1 mi. Services: mobile testing, OBD testing.
- **[Rakesh reddy Boja](https://ctcfinder.com/tester/rakesh-reddy-boja-tracy/)** — Tracy, CA 95376 — (510) 857-6186 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Sandhu Truck Services](https://ctcfinder.com/tester/sandhu-truck-services-tracy/)** — 1747 Groveview Way, Tracy, CA 95376 — (817) 210-5550 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Speedee Oil Change](https://ctcfinder.com/tester/speedee-oil-change-tracy/)** — Tracy, CA 95376 — (209) 836-1557 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.