---
title: "Pierce Smog Test Only — Clean Truck Check, Riverside, CA"
description: "Pierce Smog Test Only in Riverside, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing…"
url: "https://ctcfinder.com/tester/pierce-smog-test-only-riverside/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Pierce Smog Test Only

Clean Truck Check tester in Riverside, 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 | 10941 Hole Ave, Riverside, CA 92505 |
| County | Riverside County |
| Phone | (714) 261-7241 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Pierce Smog Test Only 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 Riverside County

Pierce Smog Test Only 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 Riverside itself there are 48 listed businesses, 45 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 Pierce Smog Test Only offer mobile Clean Truck Check testing?

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

Yes. Pierce Smog Test Only 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 Pierce Smog Test Only charge for a Clean Truck Check?

Pierce Smog Test Only has not published prices with us; call (714) 261-7241 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 Pierce Smog Test Only a CARB-credentialed tester?

Pierce Smog Test Only 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

- **[Mi Casita Smog Check](https://ctcfinder.com/tester/mi-casita-smog-check-riverside/)** — 11061 Whitford Ave, Riverside, CA 92505 — (951) 425-3213 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Michael Estabrook](https://ctcfinder.com/tester/michael-estabrook-riverside/)** — Riverside, CA 92505 — (562) 900-2708 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Oscar Altamirano Jr](https://ctcfinder.com/tester/oscar-altamirano-jr-riverside/)** — Riverside, CA 92505 — (909) 533-1933 — 1 mi. Services: mobile testing, OBD testing.
- **[Quality in Load](https://ctcfinder.com/tester/quality-in-load-riverside/)** — Riverside, CA 92505 — (951) 220-4416 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[The Garage](https://ctcfinder.com/tester/the-garage-riverside/)** — 5814 Tahoma Pl, Riverside, CA 92505 — (951) 347-5467 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[American Trucking Compliance LLC](https://ctcfinder.com/tester/american-trucking-compliance-llc-norco/)** — 1546 Bodie Pl, Norco, CA 92860 — (619) 736-4099 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.