---
title: "Pacific West Communications (Pwc) — Clean Truck Check, San Dimas, CA"
description: "Pacific West Communications (Pwc) in San Dimas, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone…"
url: "https://ctcfinder.com/tester/pacific-west-communications-pwc-san-dimas/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Pacific West Communications (Pwc)

Clean Truck Check tester in San Dimas, 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 | 900 W Gladstone St, San Dimas, CA 91773 |
| County | Los Angeles County |
| Phone | (626) 991-9086 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Pacific West Communications (Pwc) 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 DieselWorx in San Dimas, about 1 mile away. [See listing](https://ctcfinder.com/tester/dieselworx-san-dimas/).

## Clean Truck Check testers in Los Angeles County

Pacific West Communications (Pwc) 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 San Dimas 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 Pacific West Communications (Pwc) offer mobile Clean Truck Check testing?

Yes. Pacific West Communications (Pwc) 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 Pacific West Communications (Pwc) test a 2012 or older diesel truck?

Pacific West Communications (Pwc) does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [DieselWorx](https://ctcfinder.com/tester/dieselworx-san-dimas/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Pacific West Communications (Pwc) charge for a Clean Truck Check?

Pacific West Communications (Pwc) has not published prices with us; call (626) 991-9086 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 Pacific West Communications (Pwc) a CARB-credentialed tester?

Pacific West Communications (Pwc) 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

- **[Caloha Air Compliance](https://ctcfinder.com/tester/caloha-air-compliance-san-dimas/)** — 207 Hollyglen Lane, San Dimas, CA 91773 — (626) 926-1825 — 1 mi. Services: mobile testing, OBD testing.
- **[DieselWorx](https://ctcfinder.com/tester/dieselworx-san-dimas/)** — San Dimas, CA 91773 — (626) 633-6967 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[JR Durazo](https://ctcfinder.com/tester/jr-durazo-san-dimas/)** — San Dimas, CA 91773 — (909) 721-5002 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[188844motor.com](https://ctcfinder.com/tester/188844motor-com-glendora/)** — 512 W Route 66, Glendora, CA 91740 — (951) 258-7309 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Darling Smog](https://ctcfinder.com/tester/darling-smog-glendora/)** — 743 W Route 66 #4, Glendora, CA 91740 — (626) 495-8835 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Motor](https://ctcfinder.com/tester/motor-glendora/)** — 512 West Route 66, Glendora, CA 91740 — (626) 551-9057 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.