---
title: "Caddell Fleet Services — Clean Truck Check, Morgan Hill, CA"
description: "Caddell Fleet Services in Morgan Hill, 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/caddell-fleet-services-morgan-hill/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Caddell Fleet Services

Clean Truck Check tester in Morgan Hill, CA (Santa Clara 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 | 16160 Church St, Morgan Hill, CA 95037 |
| County | Santa Clara County |
| Phone | (408) 599-9295 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Caddell Fleet Services 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 Santa Clara County

Caddell Fleet Services is one of 79 testing businesses in Santa Clara County on CARB's public tester list. 67 of them offer mobile testing and 27 do smoke opacity tests. In Morgan Hill itself there are 6 listed businesses, 6 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 Caddell Fleet Services offer mobile Clean Truck Check testing?

Yes. Caddell Fleet Services 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 Caddell Fleet Services test a 2012 or older diesel truck?

Yes. Caddell Fleet Services 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 Caddell Fleet Services charge for a Clean Truck Check?

Caddell Fleet Services has not published prices with us; call (408) 599-9295 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 Caddell Fleet Services a CARB-credentialed tester?

Caddell Fleet Services 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

- **[Cali Smoke Testing](https://ctcfinder.com/tester/cali-smoke-testing-morgan-hill/)** — 2505 Pinto Ct, Morgan Hill, CA 95037 — (408) 427-2236 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Direct Fleet Scan](https://ctcfinder.com/tester/direct-fleet-scan-morgan-hill/)** — 305 Vineyard Town Ctr, Morgan Hill, CA 95037 — (408) 710-6489 — 1 mi. Services: mobile testing, OBD testing.
- **[Jose Gonzalez Sandoval](https://ctcfinder.com/tester/jose-gonzalez-sandoval-morgan-hill/)** — Morgan Hill, CA 95037 — (707) 430-1829 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Morgan Hill Smog](https://ctcfinder.com/tester/morgan-hill-smog-morgan-hill/)** — 195 San Pedro Ave Suite C 5, Morgan Hill, CA 95037 — (408) 763-1903 — 1 mi. Services: mobile testing, OBD testing.
- **[Norcal Inspections](https://ctcfinder.com/tester/norcal-inspections-morgan-hill/)** — 2505 Pinto Ct, Morgan Hill, CA 95037 — (408) 828-2080 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[CA Truck Compliance Group](https://ctcfinder.com/tester/ca-truck-compliance-group-san-martin/)** — 40 E San Martin Ave, San Martin, CA 95046 — (408) 360-7700 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.