---
title: "Eman Computers — Clean Truck Check, Vernon, CA | CTC Finder"
description: "Eman Computers in Vernon, 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/eman-computers-vernon/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Eman Computers

Clean Truck Check tester in Vernon, CA (Los Angeles 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 | Vernon, CA 90058 |
| County | Los Angeles County |
| Phone | (323) 556-4524 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Eman Computers 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 Franco CTC in Los Angeles, about 1 mile away. [See listing](https://ctcfinder.com/tester/franco-ctc-los-angeles/).

## Clean Truck Check testers in Los Angeles County

Eman Computers is one of 516 testing businesses in Los Angeles County on CARB's public tester list. 465 of them offer mobile testing and 190 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 Eman Computers offer mobile Clean Truck Check testing?

Yes. Eman Computers 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 Eman Computers test a 2012 or older diesel truck?

Eman Computers does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Franco CTC](https://ctcfinder.com/tester/franco-ctc-los-angeles/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Eman Computers charge for a Clean Truck Check?

Eman Computers has not published prices with us; call (323) 556-4524 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 Eman Computers a CARB-credentialed tester?

Eman Computers 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

- **[Franco CTC](https://ctcfinder.com/tester/franco-ctc-los-angeles/)** — 4037 Bandini Blvd, Los Angeles, CA 90058 — (562) 686-9339 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Roadmasters](https://ctcfinder.com/tester/roadmasters-los-angeles/)** — 1874 E 43rd St, Los Angeles, CA 90058 — (626) 755-9810 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Walts Truck Repair](https://ctcfinder.com/tester/walts-truck-repair-los-angeles/)** — 2119 East 25Th Street, Los Angeles, CA 90058 — (323) 328-2241 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Matthew Caudillo](https://ctcfinder.com/tester/matthew-caudillo-vernon/)** — Vernon, CA 90058 — (562) 965-5838 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Abraham Garcia](https://ctcfinder.com/tester/abraham-garcia-huntington-park/)** — Huntington Park, CA 90255 — (323) 428-1585 — 2 mi. Services: mobile testing, OBD testing.
- **[All Modal Transportation](https://ctcfinder.com/tester/all-modal-transportation-huntington-park/)** — Huntington Park, CA 90255 — (323) 970-5844 — 2 mi. Services: OBD testing.