---
title: "One Stop Clean Air — Clean Truck Check, Milpitas, CA"
description: "One Stop Clean Air in Milpitas, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/one-stop-clean-air-milpitas/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# One Stop Clean Air

Clean Truck Check tester in Milpitas, CA (Santa Clara 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 | 978 Ames Ave, Milpitas, CA 95035 |
| County | Santa Clara County |
| Phone | (408) 658-2093 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks One Stop Clean Air 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 | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Michael Peregrino in Milpitas, about 1 mile away. [See listing](https://ctcfinder.com/tester/michael-peregrino-milpitas/).

## Clean Truck Check testers in Santa Clara County

One Stop Clean Air is one of 79 testing businesses in Santa Clara County on CARB's public tester list. 67 of them offer mobile testing and 27 do smoke opacity tests. In Milpitas itself there are 3 listed businesses, 3 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 One Stop Clean Air offer mobile Clean Truck Check testing?

Yes. One Stop Clean Air 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 One Stop Clean Air test a 2012 or older diesel truck?

One Stop Clean Air does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Michael Peregrino](https://ctcfinder.com/tester/michael-peregrino-milpitas/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does One Stop Clean Air charge for a Clean Truck Check?

One Stop Clean Air has not published prices with us; call (408) 658-2093 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 One Stop Clean Air a CARB-credentialed tester?

One Stop Clean Air 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

- **[Hasan Gundogan](https://ctcfinder.com/tester/hasan-gundogan-milpitas/)** — Milpitas, CA 95035 — (650) 407-8032 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Michael Peregrino](https://ctcfinder.com/tester/michael-peregrino-milpitas/)** — Milpitas, CA 95035 — (408) 420-1244 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Benjamin Nguyen](https://ctcfinder.com/tester/benjamin-nguyen-san-jose/)** — San Jose, CA 95131 — (408) 964-8829 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Ed Boland](https://ctcfinder.com/tester/ed-boland-san-jose/)** — San Jose, CA 95131 — (408) 997-9229 — 4 mi. Services: mobile testing, OBD testing.
- **[Jose Medina](https://ctcfinder.com/tester/jose-medina-san-jose/)** — San Jose, CA 95131 — (408) 838-1146 — 4 mi. Services: OBD testing, smoke opacity (non-OBD) testing.
- **[Bay Area Truck Services](https://ctcfinder.com/tester/bay-area-truck-services-san-jose/)** — 1255 Yard Ct, San Jose, CA 95133 — (408) 593-4750 — 5 mi. Services: mobile testing, OBD testing.