---
title: "Smog To Go — Clean Truck Check, Valencia, CA | CTC Finder"
description: "Smog To Go in Valencia, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/smog-to-go-valencia/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Smog To Go

Clean Truck Check tester in Valencia, 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 | 29575 Paseo Guijarro, Valencia, CA 91354 |
| County | Los Angeles County |
| Phone | (818) 966-1117 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Smog To Go 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 | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Es Truck Networking in Santa Clarita, about 3 miles away. [See listing](https://ctcfinder.com/tester/es-truck-networking-santa-clarita/).

## Clean Truck Check testers in Los Angeles County

Smog To Go 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 Valencia 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 Smog To Go offer mobile Clean Truck Check testing?

Yes. Smog To Go 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 Smog To Go test a 2012 or older diesel truck?

Smog To Go does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Es Truck Networking](https://ctcfinder.com/tester/es-truck-networking-santa-clarita/) (about 3 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Smog To Go charge for a Clean Truck Check?

Smog To Go has not published prices with us; call (818) 966-1117 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 Smog To Go a CARB-credentialed tester?

Smog To Go 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

- **[Es Truck Networking](https://ctcfinder.com/tester/es-truck-networking-santa-clarita/)** — 26027 Marquis Ct, Santa Clarita, CA 91350 — (818) 746-6575 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[All American Mobile Repair](https://ctcfinder.com/tester/all-american-mobile-repair-valencia/)** — 24307 Magic Mountain Parkway #138, Valencia, CA 91355 — (661) 433-3808 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Marc Lamb](https://ctcfinder.com/tester/marc-lamb-valencia/)** — Valencia, CA 91355 — (805) 331-0864 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mobile Nox Doc LLC](https://ctcfinder.com/tester/mobile-nox-doc-llc-valencia/)** — Valencia, CA 91355 — (805) 727-0920 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[ProLine Diesel Repair](https://ctcfinder.com/tester/proline-diesel-repair-valencia/)** — 27240 Turnberry Ln Suite 200, Valencia, CA 91355 — (661) 383-1945 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[APA Trucking](https://ctcfinder.com/tester/apa-trucking-canyon-country/)** — 19526 Chadway Street, Canyon Country, CA 91351 — (818) 414-0494 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.