---
title: "CTC Mobile Tester — Clean Truck Check, Alhambra, CA"
description: "CTC Mobile Tester in Alhambra, 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/ctc-mobile-tester-alhambra/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# CTC Mobile Tester

Clean Truck Check tester in Alhambra, CA (Los Angeles 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 | 1325 Elm St, Alhambra, CA 91803 |
| County | Los Angeles County |
| Phone | (626) 313-6409 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks CTC Mobile Tester 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 Los Angeles County

CTC Mobile Tester is one of 516 testing businesses in Los Angeles County on CARB's public tester list. 465 of them offer mobile testing and 190 do smoke opacity tests. In Alhambra itself there are 5 listed businesses, 5 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 CTC Mobile Tester offer mobile Clean Truck Check testing?

Yes. CTC Mobile Tester 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 CTC Mobile Tester test a 2012 or older diesel truck?

Yes. CTC Mobile Tester 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 CTC Mobile Tester charge for a Clean Truck Check?

CTC Mobile Tester has not published prices with us; call (626) 313-6409 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 CTC Mobile Tester a CARB-credentialed tester?

CTC Mobile Tester 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

- **[Robert Araujo](https://ctcfinder.com/tester/robert-araujo-alhambra/)** — Alhambra, CA 91803 — (323) 271-2565 — 1 mi. Services: mobile testing.
- **[Ty Trang](https://ctcfinder.com/tester/ty-trang-alhambra/)** — Alhambra, CA 91803 — (323) 786-2681 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[ENS Bus & Truck Check](https://ctcfinder.com/tester/ens-bus-and-truck-check-monterey-park/)** — 470 Grandeza Street, Monterey Park, CA 91754 — (626) 481-5317 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[SKY Smog and Test Only](https://ctcfinder.com/tester/sky-smog-and-test-only-monterey-park/)** — 705 Monterey Pass Rd Suite C, Monterey Park, CA 91754 — (323) 262-9093 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Zaw Moe](https://ctcfinder.com/tester/zaw-moe-monterey-park/)** — Monterey Park, CA 91754 — (626) 877-2230 — 2 mi. Services: mobile testing, OBD testing.
- **[Nutthakarn Pantiyanurak](https://ctcfinder.com/tester/nutthakarn-pantiyanurak-alhambra/)** — Alhambra, CA 91801 — (626) 620-5326 — 2 mi. Services: mobile testing, OBD testing.