---
title: "Keepin it green smog station — Clean Truck Check, Fresno, CA"
description: "Keepin it green smog station in Fresno, 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/keepin-it-green-smog-station-fresno/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Keepin it green smog station

Clean Truck Check tester in Fresno, CA (Fresno 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 | 4760 E Carmen Ave, Fresno, CA 93703 |
| County | Fresno County |
| Phone | (559) 218-0585 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Keepin it green smog station 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 Angel LAO in Fresno, about 1 mile away. [See listing](https://ctcfinder.com/tester/angel-lao-fresno/).

## Clean Truck Check testers in Fresno County

Keepin it green smog station is one of 123 testing businesses in Fresno County on CARB's public tester list. 102 of them offer mobile testing and 47 do smoke opacity tests. In Fresno itself there are 74 listed businesses, 60 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 Keepin it green smog station offer mobile Clean Truck Check testing?

Yes. Keepin it green smog station 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 Keepin it green smog station test a 2012 or older diesel truck?

Keepin it green smog station does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Angel LAO](https://ctcfinder.com/tester/angel-lao-fresno/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Keepin it green smog station charge for a Clean Truck Check?

Keepin it green smog station has not published prices with us; call (559) 218-0585 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 Keepin it green smog station a CARB-credentialed tester?

Keepin it green smog station 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

- **[Angel LAO](https://ctcfinder.com/tester/angel-lao-fresno/)** — Fresno, CA 93703 — (559) 548-3808 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Isaac Renteria](https://ctcfinder.com/tester/isaac-renteria-fresno/)** — Fresno, CA 93703 — (559) 458-5546 — 1 mi. Services: not listed.
- **[Julieta Romero](https://ctcfinder.com/tester/julieta-romero-fresno/)** — Fresno, CA 93703 — (559) 905-6457 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing.
- **[Witness Smog](https://ctcfinder.com/tester/witness-smog-fresno/)** — 1919 E Home Ave, Fresno, CA 93703 — (559) 394-5693 — 1 mi. Services: not listed.
- **[Chou Yang](https://ctcfinder.com/tester/chou-yang-fresno/)** — Fresno, CA 93726 — (559) 601-4088 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Sumeet Singh](https://ctcfinder.com/tester/sumeet-singh-fresno/)** — Fresno, CA 93726 — (210) 998-0000 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.