---
title: "HD Smog Pro LLC — Clean Truck Check, Perris, CA | CTC Finder"
description: "HD Smog Pro LLC in Perris, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, motorhome testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/hd-smog-pro-llc-perris/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# HD Smog Pro LLC

Clean Truck Check tester in Perris, 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 | 2197 Murrieta Rd, Perris, CA 92571 |
| County | Riverside County |
| Phone | (951) 664-2574 |
| Mobile testing | Yes |
| OBD testing | No |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks HD Smog Pro LLC can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Not listed |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Not listed |
| 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 California Emission Solutions llc in Perris, about 1 mile away. [See listing](https://ctcfinder.com/tester/california-emission-solutions-llc-perris/).

## Clean Truck Check testers in Riverside County

HD Smog Pro LLC 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 Perris itself there are 18 listed businesses, 16 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 HD Smog Pro LLC offer mobile Clean Truck Check testing?

Yes. HD Smog Pro LLC 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 HD Smog Pro LLC test a 2012 or older diesel truck?

HD Smog Pro LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [California Emission Solutions llc](https://ctcfinder.com/tester/california-emission-solutions-llc-perris/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does HD Smog Pro LLC charge for a Clean Truck Check?

HD Smog Pro LLC has not published prices with us; call (951) 664-2574 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 HD Smog Pro LLC a CARB-credentialed tester?

HD Smog Pro LLC 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

- **[aguilares LLC](https://ctcfinder.com/tester/aguilares-llc-perris/)** — 2066 Willowbrook Ln, Perris, CA 92571 — (949) 245-4300 — 1 mi. Services: OBD testing.
- **[All Smogged Motors](https://ctcfinder.com/tester/all-smogged-motors-perris/)** — 425 W Rider St Suite B 3, Perris, CA 92571 — (951) 790-2232 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[California Emission Solutions llc](https://ctcfinder.com/tester/california-emission-solutions-llc-perris/)** — 3645 Alhambra Ln, Perris, CA 92571 — (951) 990-4074 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Faisal Bhuiyan](https://ctcfinder.com/tester/faisal-bhuiyan-perris/)** — Perris, CA 92571 — (909) 561-2872 — 1 mi. Services: mobile testing, OBD testing.
- **[Inland Empire Diesel Smog](https://ctcfinder.com/tester/inland-empire-diesel-smog-perris/)** — 1133 Moraga Ave, Perris, CA 92571 — (562) 310-0036 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[O&J Mobile Mechanics LLC](https://ctcfinder.com/tester/o-and-j-mobile-mechanics-llc-perris/)** — 1902 Neptune Dr, Perris, CA 92571 — (951) 591-9827 — 1 mi. Services: mobile testing, OBD testing.