---
title: "A1 smogs — Clean Truck Check, Salinas, CA | CTC Finder"
description: "A1 smogs in Salinas, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing…"
url: "https://ctcfinder.com/tester/a1-smogs-salinas/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# A1 smogs

Clean Truck Check tester in Salinas, CA (Monterey 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 | 1299 N Main St, Salinas, CA 93906 |
| County | Monterey County |
| Phone | (831) 322-9361 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks A1 smogs 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 Monterey County

A1 smogs is one of 37 testing businesses in Monterey County on CARB's public tester list. 33 of them offer mobile testing and 11 do smoke opacity tests. In Salinas itself there are 21 listed businesses, 18 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 A1 smogs offer mobile Clean Truck Check testing?

Yes. A1 smogs 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 A1 smogs test a 2012 or older diesel truck?

Yes. A1 smogs 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 A1 smogs charge for a Clean Truck Check?

A1 smogs has not published prices with us; call (831) 322-9361 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 A1 smogs a CARB-credentialed tester?

A1 smogs 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

- **[Andrade Mobile Carbs](https://ctcfinder.com/tester/andrade-mobile-carbs-salinas/)** — 7 Christensen Ave, Salinas, CA 93906 — (831) 258-6006 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Salinas Auto Repair](https://ctcfinder.com/tester/salinas-auto-repair-salinas/)** — Salinas, CA 93906 — (831) 500-2254 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[David Rocha Ramirez](https://ctcfinder.com/tester/david-rocha-ramirez-salinas/)** — Salinas, CA 93905 — (831) 406-7857 — 3 mi. Services: mobile testing, OBD testing.
- **[Rigos Automotive LLC](https://ctcfinder.com/tester/rigos-automotive-llc-prunedale/)** — 10041 Reese Circle Suite C, Prunedale, CA 93907 — (831) 595-4828 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Albert mendez](https://ctcfinder.com/tester/albert-mendez-salinas/)** — Salinas, CA 93907 — (831) 214-2139 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Avina Automotive](https://ctcfinder.com/tester/avina-automotive-salinas/)** — 7 ELLIS 1, Salinas, CA 93907 — (831) 333-6170 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.