---
title: "Interstate 94 — Clean Truck Check, Jamul, CA | CTC Finder"
description: "Interstate 94 in Jamul, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing…"
url: "https://ctcfinder.com/tester/interstate-94-jamul/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Interstate 94

Clean Truck Check tester in Jamul, CA (San Diego 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 | 15616 Lyons Valley Road, Jamul, CA 91935 |
| County | San Diego County |
| Phone | (619) 345-1082 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Interstate 94 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 Diego County

Interstate 94 is one of 178 testing businesses in San Diego County on CARB's public tester list. 157 of them offer mobile testing and 91 do smoke opacity tests.

## 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 Interstate 94 offer mobile Clean Truck Check testing?

Yes. Interstate 94 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 Interstate 94 test a 2012 or older diesel truck?

Yes. Interstate 94 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 Interstate 94 charge for a Clean Truck Check?

Interstate 94 has not published prices with us; call (619) 345-1082 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 Interstate 94 a CARB-credentialed tester?

Interstate 94 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

- **[Adrian Rocha](https://ctcfinder.com/tester/adrian-rocha-jamul/)** — Jamul, CA 91935 — (619) 836-5930 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Ayad Abdulkadir](https://ctcfinder.com/tester/ayad-abdulkadir-el-cajon/)** — El Cajon, CA 92019 — (619) 678-6809 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Roni Naemo](https://ctcfinder.com/tester/roni-naemo-el-cajon/)** — El Cajon, CA 92019 — (619) 322-7689 — 8 mi. Services: mobile testing, OBD testing.
- **[United Carrier Authority](https://ctcfinder.com/tester/united-carrier-authority-el-cajon/)** — 2472 Hilton Head Pl #2164, El Cajon, CA 92019 — (858) 500-0004 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Zyad Abdulkadir](https://ctcfinder.com/tester/zyad-abdulkadir-el-cajon/)** — El Cajon, CA 92019 — (619) 499-3554 — 8 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Joe's Mobile Carb Certification](https://ctcfinder.com/tester/joes-mobile-carb-certification-alpine/)** — 515 Anderson Rd, Alpine, CA 91901 — (619) 324-9318 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.