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

# Mobile Golden State Emissions Testing South City

Clean Truck Check tester in South San Francisco, 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 | 988 El Camino Real, South San Francisco, CA 94080 |
| County | San Mateo County |
| Phone | (925) 354-4370 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mobile Golden State Emissions Testing South City 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 San Mateo County

Mobile Golden State Emissions Testing South City 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 South San Francisco itself there are 5 listed businesses, 2 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 Testing South City offer mobile Clean Truck Check testing?

Yes. Mobile Golden State Emissions Testing South City 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 Testing South City test a 2012 or older diesel truck?

Yes. Mobile Golden State Emissions Testing South City 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 Mobile Golden State Emissions Testing South City charge for a Clean Truck Check?

Mobile Golden State Emissions Testing South City has not published prices with us; call (925) 354-4370 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 Testing South City a CARB-credentialed tester?

Mobile Golden State Emissions Testing South City 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

- **[Steve Eftimiou](https://ctcfinder.com/tester/steve-eftimiou-south-san-francisco/)** — South San Francisco, CA 94080 — (415) 716-3119 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing.
- **[Steve Skrivanek](https://ctcfinder.com/tester/steve-skrivanek-south-san-francisco/)** — South San Francisco, CA 94080 — (650) 333-0475 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing.
- **[Steven's Bay Area Diesel](https://ctcfinder.com/tester/stevens-bay-area-diesel-south-san-francisco/)** — 480 Littlefield Ave, South San Francisco, CA 94080 — (650) 290-3703 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing.
- **[Truck N go](https://ctcfinder.com/tester/truck-n-go-south-san-francisco/)** — 861 Stonegate Dr, South San Francisco, CA 94080 — (925) 482-7108 — 1 mi. Services: mobile testing, OBD testing.
- **[Ernesto Gutierrez](https://ctcfinder.com/tester/ernesto-gutierrez-san-bruno/)** — San Bruno, CA 94066 — (650) 686-1783 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[JTL Mobile CARB Testing](https://ctcfinder.com/tester/jtl-mobile-carb-testing-san-bruno/)** — 1282 Park Ave, San Bruno, CA 94066 — (415) 272-7467 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.