---
title: "David Smith — Clean Truck Check, Ojai, CA | CTC Finder"
description: "David Smith in Ojai, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/david-smith-ojai/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# David Smith

Clean Truck Check tester in Ojai, CA (Ventura 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 | Ojai, CA 93023 |
| County | Ventura County |
| Phone | (805) 212-2474 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks David Smith 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 | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is D-Loe Equipment in Ojai, about 1 mile away. [See listing](https://ctcfinder.com/tester/d-loe-equipment-ojai/).

## Clean Truck Check testers in Ventura County

David Smith is one of 68 testing businesses in Ventura County on CARB's public tester list. 61 of them offer mobile testing and 21 do smoke opacity tests.

## 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 David Smith offer mobile Clean Truck Check testing?

Yes. David Smith 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 David Smith test a 2012 or older diesel truck?

David Smith does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [D-Loe Equipment](https://ctcfinder.com/tester/d-loe-equipment-ojai/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does David Smith charge for a Clean Truck Check?

David Smith has not published prices with us; call (805) 212-2474 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 David Smith a CARB-credentialed tester?

David Smith 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

- **[D-Loe Equipment](https://ctcfinder.com/tester/d-loe-equipment-ojai/)** — 212 Besant Rd, Ojai, CA 93023 — (805) 797-0360 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Bradley Rhodes](https://ctcfinder.com/tester/bradley-rhodes-ventura/)** — Ventura, CA 93001 — (951) 203-7174 — 12 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Clean Planet Smog Check](https://ctcfinder.com/tester/clean-planet-smog-check-ventura/)** — 1050 E Thompson Blvd, Ventura, CA 93001 — (805) 403-8721 — 12 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[OST Trucks and Cranes](https://ctcfinder.com/tester/ost-trucks-and-cranes-ventura/)** — 2951 N Ventura Ave, Ventura, CA 93001 — (805) 479-9441 — 12 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Wise Fleet Services](https://ctcfinder.com/tester/wise-fleet-services-ventura/)** — 1335 N Ventura Ave, Ventura, CA 93001 — (805) 415-6569 — 12 mi. Services: mobile testing, OBD testing.
- **[Barnes Fleet Service](https://ctcfinder.com/tester/barnes-fleet-service-santa-paula/)** — 800 Corporation St, Santa Paula, CA 93060 — (805) 844-4175 — 13 mi. Services: OBD testing, motorhome testing.