---
title: "Mobile Golden State Emissions San Mateo — Clean Truck Check, San Mateo, CA"
description: "Mobile Golden State Emissions San Mateo in San Mateo, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing…"
url: "https://ctcfinder.com/tester/mobile-golden-state-emissions-san-mateo-san-mateo/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Mobile Golden State Emissions San Mateo

Clean Truck Check tester in San Mateo, CA (San Mateo 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 | 3500 Edison St., San Mateo, CA 94403 |
| County | San Mateo County |
| Phone | (925) 818-1831 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mobile Golden State Emissions San Mateo 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 Less Smog Check in San Mateo, about 1 mile away. [See listing](https://ctcfinder.com/tester/less-smog-check-san-mateo/).

## Clean Truck Check testers in San Mateo County

Mobile Golden State Emissions San Mateo is one of 31 testing businesses in San Mateo County on CARB's public tester list. 27 of them offer mobile testing and 17 do smoke opacity tests. In San Mateo itself there are 4 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 Mobile Golden State Emissions San Mateo offer mobile Clean Truck Check testing?

Yes. Mobile Golden State Emissions San Mateo 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 Mobile Golden State Emissions San Mateo test a 2012 or older diesel truck?

Mobile Golden State Emissions San Mateo does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Less Smog Check](https://ctcfinder.com/tester/less-smog-check-san-mateo/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Mobile Golden State Emissions San Mateo charge for a Clean Truck Check?

Mobile Golden State Emissions San Mateo has not published prices with us; call (925) 818-1831 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 Mobile Golden State Emissions San Mateo a CARB-credentialed tester?

Mobile Golden State Emissions San Mateo 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

- **[Less Smog Check](https://ctcfinder.com/tester/less-smog-check-san-mateo/)** — 3925 S El Camino Real, San Mateo, CA 94403 — (669) 377-4881 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Charlotte Cuschieri](https://ctcfinder.com/tester/charlotte-cuschieri-san-mateo/)** — San Mateo, CA 94402 — (650) 455-8824 — 1 mi. Services: OBD testing, motorhome testing.
- **[EV Auto Service LLC](https://ctcfinder.com/tester/ev-auto-service-llc-san-mateo/)** — 110 S Claremont St, San Mateo, CA 94401 — (650) 293-7738 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Carbcheck1](https://ctcfinder.com/tester/carbcheck1-san-carlos/)** — San Carlos, CA 94070 — (650) 430-3981 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Holly Smog](https://ctcfinder.com/tester/holly-smog-san-carlos/)** — 501 Old County Rd Suite A, San Carlos, CA 94070 — (650) 595-1388 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mohammad Najafpir](https://ctcfinder.com/tester/mohammad-najafpir-burlingame/)** — Burlingame, CA 94010 — (650) 771-8865 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.