---
title: "ProMobile Fleet — Clean Truck Check, Ceres, CA | CTC Finder"
description: "ProMobile Fleet in Ceres, 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/promobile-fleet-ceres/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# ProMobile Fleet

Clean Truck Check tester in Ceres, CA (Stanislaus 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 | 991 Premier Dr, Ceres, CA 95307 |
| County | Stanislaus County |
| Phone | (209) 769-7925 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks ProMobile Fleet 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 Ace smog in Ceres, about 1 mile away. [See listing](https://ctcfinder.com/tester/ace-smog-ceres/).

## Clean Truck Check testers in Stanislaus County

ProMobile Fleet is one of 53 testing businesses in Stanislaus County on CARB's public tester list. 47 of them offer mobile testing and 22 do smoke opacity tests. In Ceres itself there are 7 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 ProMobile Fleet offer mobile Clean Truck Check testing?

Yes. ProMobile Fleet 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 ProMobile Fleet test a 2012 or older diesel truck?

ProMobile Fleet does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Ace smog](https://ctcfinder.com/tester/ace-smog-ceres/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does ProMobile Fleet charge for a Clean Truck Check?

ProMobile Fleet has not published prices with us; call (209) 769-7925 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 ProMobile Fleet a CARB-credentialed tester?

ProMobile Fleet 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

- **[Ace smog](https://ctcfinder.com/tester/ace-smog-ceres/)** — 2500 Mary Ave, Ceres, CA 95307 — (209) 531-6823 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[All Star Auto Smog](https://ctcfinder.com/tester/all-star-auto-smog-ceres/)** — 1561 E Whitmore Ave, Ceres, CA 95307 — (209) 568-7833 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Guriqbal Chahal](https://ctcfinder.com/tester/guriqbal-chahal-ceres/)** — Ceres, CA 95307 — (209) 222-0705 — 1 mi. Services: mobile testing, OBD testing.
- **[Rangi Registration](https://ctcfinder.com/tester/rangi-registration-ceres/)** — 2904 4th St, Ceres, CA 95307 — (209) 480-6516 — 1 mi. Services: OBD testing.
- **[Solis Clean Truck Checks](https://ctcfinder.com/tester/solis-clean-truck-checks-ceres/)** — 4467 Faith Home Rd, Ceres, CA 95307 — (209) 996-3687 — 1 mi. Services: mobile testing, OBD testing.
- **[Stop Truck Permits](https://ctcfinder.com/tester/stop-truck-permits-ceres/)** — 1320 Tomba Dr, Ceres, CA 95307 — (209) 733-3030 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.