---
title: "Jodi Fritz — Clean Truck Check, Modesto, CA | CTC Finder"
description: "Jodi Fritz in Modesto, 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/jodi-fritz-modesto/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Jodi Fritz

Clean Truck Check tester in Modesto, 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 | Modesto, CA 95350 |
| County | Stanislaus County |
| Phone | (209) 622-9156 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Jodi Fritz 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 Stanislaus County

Jodi Fritz 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 Modesto itself there are 23 listed businesses, 21 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 Jodi Fritz offer mobile Clean Truck Check testing?

Yes. Jodi Fritz 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 Jodi Fritz test a 2012 or older diesel truck?

Yes. Jodi Fritz 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 Jodi Fritz charge for a Clean Truck Check?

Jodi Fritz has not published prices with us; call (209) 622-9156 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 Jodi Fritz a CARB-credentialed tester?

Jodi Fritz 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

- **[Adrian Diaz](https://ctcfinder.com/tester/adrian-diaz-modesto/)** — Modesto, CA 95350 — (209) 621-7691 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Brian Padilla](https://ctcfinder.com/tester/brian-padilla-modesto/)** — Modesto, CA 95350 — (209) 918-3600 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Nathan Simpson](https://ctcfinder.com/tester/nathan-simpson-modesto/)** — Modesto, CA 95354 — (209) 678-8549 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[S S DPF Filter Cleaning](https://ctcfinder.com/tester/s-s-dpf-filter-cleaning-modesto/)** — 220 Beard Ave, Modesto, CA 95354 — (209) 649-4581 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[S&S dpf filter cleaning](https://ctcfinder.com/tester/s-and-s-dpf-filter-cleaning-modesto/)** — 220 Beard Ave, Modesto, CA 95354 — (209) 622-6134 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Walkers Automotive](https://ctcfinder.com/tester/walkers-automotive-modesto/)** — 407 14th St, Modesto, CA 95354 — (209) 527-5577 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.