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

# Carmen Sahagun

Clean Truck Check tester in Riverside, CA (Riverside 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 | Riverside, CA 92503 |
| County | Riverside County |
| Phone | (661) 695-1084 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Carmen Sahagun 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 Riverside County

Carmen Sahagun is one of 251 testing businesses in Riverside County on CARB's public tester list. 233 of them offer mobile testing and 102 do smoke opacity tests. In Riverside itself there are 48 listed businesses, 45 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 Carmen Sahagun offer mobile Clean Truck Check testing?

Yes. Carmen Sahagun 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 Carmen Sahagun test a 2012 or older diesel truck?

Yes. Carmen Sahagun 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 Carmen Sahagun charge for a Clean Truck Check?

Carmen Sahagun has not published prices with us; call (661) 695-1084 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 Carmen Sahagun a CARB-credentialed tester?

Carmen Sahagun 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

- **[Adelinos Auto Clinic](https://ctcfinder.com/tester/adelinos-auto-clinic-riverside/)** — 3300 Harrison St, Riverside, CA 92503 — (951) 454-0635 — 1 mi. Services: mobile testing, OBD testing.
- **[Antonio Beltran](https://ctcfinder.com/tester/antonio-beltran-riverside/)** — Riverside, CA 92503 — (760) 898-4694 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Connor concrete cutting](https://ctcfinder.com/tester/connor-concrete-cutting-riverside/)** — Riverside, CA 92503 — (951) 206-2314 — 1 mi. Services: mobile testing.
- **[Corona Smog Center & Test Only](https://ctcfinder.com/tester/corona-smog-center-and-test-only-riverside/)** — 12690 Magnolia Ave, Riverside, CA 92503 — (951) 906-6793 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Green Check, Inc.](https://ctcfinder.com/tester/green-check-inc-riverside/)** — 17836 Robusta Dr, Riverside, CA 92503 — (951) 476-6496 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[H and A Auto Center](https://ctcfinder.com/tester/h-and-a-auto-center-riverside/)** — 12321 Sampson St Suite N, Riverside, CA 92503 — (949) 929-7146 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.