---
title: "J’s Heavy Emissions Testing — Clean Truck Check, Porterville, CA"
description: "J’s Heavy Emissions Testing in Porterville, 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/js-heavy-emissions-testing-porterville/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# J’s Heavy Emissions Testing

Clean Truck Check tester in Porterville, CA (Tulare 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 | 381 W Henderson Ave, Porterville, CA 93257 |
| County | Tulare County |
| Phone | (559) 350-4262 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks J’s Heavy Emissions Testing 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 Tulare County

J’s Heavy Emissions Testing is one of 62 testing businesses in Tulare County on CARB's public tester list. 53 of them offer mobile testing and 31 do smoke opacity tests. In Porterville itself there are 6 listed businesses, 5 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 J’s Heavy Emissions Testing offer mobile Clean Truck Check testing?

Yes. J’s Heavy Emissions Testing 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 J’s Heavy Emissions Testing test a 2012 or older diesel truck?

Yes. J’s Heavy Emissions Testing 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 J’s Heavy Emissions Testing charge for a Clean Truck Check?

J’s Heavy Emissions Testing has not published prices with us; call (559) 350-4262 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 J’s Heavy Emissions Testing a CARB-credentialed tester?

J’s Heavy Emissions Testing 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

- **[Becca Davis](https://ctcfinder.com/tester/becca-davis-porterville/)** — Porterville, CA 93257 — (559) 699-5150 — 1 mi. Services: mobile testing, smoke opacity (non-OBD) testing.
- **[Coast Counties Peterbilt Porterville](https://ctcfinder.com/tester/coast-counties-peterbilt-porterville-porterville/)** — 15243 Road 192, Porterville, CA 93257 — (559) 310-4869 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[DeBoer and Sons Trucking](https://ctcfinder.com/tester/deboer-and-sons-trucking-porterville/)** — 2553 W Michelle Ln, Porterville, CA 93257 — (559) 359-1927 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Isaias Rios](https://ctcfinder.com/tester/isaias-rios-porterville/)** — Porterville, CA 93257 — (661) 750-9857 — 1 mi. Services: OBD testing.
- **[Jackie Scruggs jr](https://ctcfinder.com/tester/jackie-scruggs-jr-porterville/)** — Porterville, CA 93257 — (559) 544-5518 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Alcantar Truck and Diesel Services](https://ctcfinder.com/tester/alcantar-truck-and-diesel-services-terra-bella/)** — 25500 Avenue 88, Terra Bella, CA 93270 — (559) 719-0667 — 10 mi. Services: OBD testing, smoke opacity (non-OBD) testing.