---
title: "James Zamora — Clean Truck Check, Nuevo, CA | CTC Finder"
description: "James Zamora in Nuevo, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing…"
url: "https://ctcfinder.com/tester/james-zamora-nuevo/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# James Zamora

Clean Truck Check tester in Nuevo, 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 | Nuevo, CA 92567 |
| County | Riverside County |
| Phone | (951) 442-2629 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks James Zamora 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

James Zamora 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 Nuevo itself there are 3 listed businesses, 3 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 James Zamora offer mobile Clean Truck Check testing?

Yes. James Zamora 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 James Zamora test a 2012 or older diesel truck?

Yes. James Zamora 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 James Zamora charge for a Clean Truck Check?

James Zamora has not published prices with us; call (951) 442-2629 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 James Zamora a CARB-credentialed tester?

James Zamora 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

- **[Roberts concrete cutting](https://ctcfinder.com/tester/roberts-concrete-cutting-nuevo/)** — Nuevo, CA 92567 — (909) 749-2931 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Salvador Torres](https://ctcfinder.com/tester/salvador-torres-nuevo/)** — Nuevo, CA 92567 — (951) 452-9189 — 1 mi. Services: mobile testing, OBD testing.
- **[A-Z Transport Tech LLC](https://ctcfinder.com/tester/a-z-transport-tech-llc-san-jacinto/)** — 1975 El Milagro Rd, San Jacinto, CA 92582 — (951) 570-3538 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Central Diesel Fleet Union INC](https://ctcfinder.com/tester/central-diesel-fleet-union-inc-san-jacinto/)** — 650 S Grand Ave, San Jacinto, CA 92582 — (909) 272-5464 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Diesel Compliance Pro](https://ctcfinder.com/tester/diesel-compliance-pro-san-jacinto/)** — 2989 Crooked Branch Way, San Jacinto, CA 92582 — (626) 251-8944 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[First Choice Smog](https://ctcfinder.com/tester/first-choice-smog-san-jacinto/)** — 494 N Scovell Ave, San Jacinto, CA 92582 — (951) 327-3237 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.