---
title: "Smog Test Only Discount Center — Clean Truck Check, Rowland Heights, CA"
description: "Smog Test Only Discount Center in Rowland Heights, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone…"
url: "https://ctcfinder.com/tester/smog-test-only-discount-center-rowland-heights/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Smog Test Only Discount Center

Clean Truck Check tester in Rowland Heights, 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 | 19116 E Walnut Dr N, Rowland Heights, CA 91748 |
| County | Los Angeles County |
| Phone | (626) 488-2762 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Smog Test Only Discount Center 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 Marie's cleantruck's check in Rowland Heights, about 1 mile away. [See listing](https://ctcfinder.com/tester/maries-cleantrucks-check-rowland-heights/).

## Clean Truck Check testers in Los Angeles County

Smog Test Only Discount Center 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. In Rowland Heights itself there are 4 listed businesses, 4 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 Smog Test Only Discount Center offer mobile Clean Truck Check testing?

Yes. Smog Test Only Discount Center 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 Smog Test Only Discount Center test a 2012 or older diesel truck?

Smog Test Only Discount Center does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Marie's cleantruck's check](https://ctcfinder.com/tester/maries-cleantrucks-check-rowland-heights/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Smog Test Only Discount Center charge for a Clean Truck Check?

Smog Test Only Discount Center has not published prices with us; call (626) 488-2762 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 Smog Test Only Discount Center a CARB-credentialed tester?

Smog Test Only Discount Center 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

- **[CE Logistics](https://ctcfinder.com/tester/ce-logistics-city-of-industry/)** — 915 S Azusa Ave, City of Industry, CA 91748 — (626) 222-6682 — 1 mi. Services: mobile testing, OBD testing.
- **[LinkX Logistics Inc](https://ctcfinder.com/tester/linkx-logistics-inc-rowland-heights/)** — 18351 Colima Rd STE 639, Rowland Heights, CA 91748 — (909) 990-8811 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Marie's cleantruck's check](https://ctcfinder.com/tester/maries-cleantrucks-check-rowland-heights/)** — 19116 E Walnut Dr N, Rowland Heights, CA 91748 — (626) 652-1930 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Smog Pros Test Only INC](https://ctcfinder.com/tester/smog-pros-test-only-inc-rowland-heights/)** — 18934 Colima Rd, Rowland Heights, CA 91748 — (626) 839-6000 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[California CARB Check](https://ctcfinder.com/tester/california-carb-check-west-covina/)** — 2329 E Regina St, West Covina, CA 91792 — (626) 736-7797 — 3 mi. Services: mobile testing, OBD testing.
- **[Joseph Avila-Castro](https://ctcfinder.com/tester/joseph-avila-castro-west-covina/)** — West Covina, CA 91792 — (626) 383-3036 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.