---
title: "J-Tech Services Inc — Clean Truck Check, Rancho Cucamonga, CA"
description: "J-Tech Services Inc in Rancho Cucamonga, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address…"
url: "https://ctcfinder.com/tester/j-tech-services-inc-rancho-cucamonga/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# J-Tech Services Inc

Clean Truck Check tester in Rancho Cucamonga, CA (San Bernardino 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 | 7211 Haven Ave Ste E-591, Rancho Cucamonga, CA 91701 |
| County | San Bernardino County |
| Phone | (626) 672-5386 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks J-Tech Services Inc 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 Express Bitz Inc in Rancho Cucamonga, about 1 mile away. [See listing](https://ctcfinder.com/tester/express-bitz-inc-rancho-cucamonga/).

## Clean Truck Check testers in San Bernardino County

J-Tech Services Inc is one of 277 testing businesses in San Bernardino County on CARB's public tester list. 243 of them offer mobile testing and 98 do smoke opacity tests. In Rancho Cucamonga itself there are 18 listed businesses, 17 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 J-Tech Services Inc offer mobile Clean Truck Check testing?

Yes. J-Tech Services Inc 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 J-Tech Services Inc test a 2012 or older diesel truck?

J-Tech Services Inc does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Express Bitz Inc](https://ctcfinder.com/tester/express-bitz-inc-rancho-cucamonga/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does J-Tech Services Inc charge for a Clean Truck Check?

J-Tech Services Inc has not published prices with us; call (626) 672-5386 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 J-Tech Services Inc a CARB-credentialed tester?

J-Tech Services Inc 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

- **[Express Bitz Inc](https://ctcfinder.com/tester/express-bitz-inc-rancho-cucamonga/)** — 9031 Avalon St, Rancho Cucamonga, CA 91701 — (626) 848-7213 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[F&K Smog Services](https://ctcfinder.com/tester/f-and-k-smog-services-rancho-cucamonga/)** — Rancho Cucamonga, CA 91701 — (909) 224-8772 — 1 mi. Services: mobile testing, OBD testing.
- **[JS Clean Truck Check](https://ctcfinder.com/tester/js-clean-truck-check-rancho-cucamonga/)** — 7038 Kinlock Ave, Rancho Cucamonga, CA 91701 — (323) 789-9414 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[West Caost Fleet Service](https://ctcfinder.com/tester/west-caost-fleet-service-rancho-cucamonga/)** — 7245 Lion St, Rancho Cucamonga, CA 91701 — (909) 702-2462 — 1 mi. Services: mobile testing, OBD testing.
- **[Gerardo Franco](https://ctcfinder.com/tester/gerardo-franco-rancho-cucamonga/)** — Rancho Cucamonga, CA 91737 — (626) 255-1244 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Lucky Clean Truck Check](https://ctcfinder.com/tester/lucky-clean-truck-check-rancho-cucamonga/)** — 11610 Mount Rainier Ct, Rancho Cucamonga, CA 91737 — (909) 731-1966 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.