---
title: "Harpreet Singh Jolly — Clean Truck Check, Livingston, CA"
description: "Harpreet Singh Jolly in Livingston, 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/harpreet-singh-jolly-livingston/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Harpreet Singh Jolly

Clean Truck Check tester in Livingston, CA (Merced 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 | Livingston, CA 95334 |
| County | Merced County |
| Phone | (559) 999-2732 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Harpreet Singh Jolly 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 Merced County

Harpreet Singh Jolly is one of 40 testing businesses in Merced County on CARB's public tester list. 35 of them offer mobile testing and 12 do smoke opacity tests. In Livingston itself there are 3 listed businesses, 3 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 Harpreet Singh Jolly offer mobile Clean Truck Check testing?

Yes. Harpreet Singh Jolly 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 Harpreet Singh Jolly test a 2012 or older diesel truck?

Yes. Harpreet Singh Jolly 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 Harpreet Singh Jolly charge for a Clean Truck Check?

Harpreet Singh Jolly has not published prices with us; call (559) 999-2732 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 Harpreet Singh Jolly a CARB-credentialed tester?

Harpreet Singh Jolly 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

- **[Gurpreet Atwal](https://ctcfinder.com/tester/gurpreet-atwal-livingston/)** — Livingston, CA 95334 — (209) 913-9160 — 1 mi. Services: mobile testing, OBD testing.
- **[Jorge De La Rosa](https://ctcfinder.com/tester/jorge-de-la-rosa-livingston/)** — Livingston, CA 95334 — (209) 850-1232 — 1 mi. Services: mobile testing, OBD testing.
- **[Hargreaves Ranches LLC](https://ctcfinder.com/tester/hargreaves-ranches-llc-delhi/)** — 17736 Swanson Rd, Delhi, CA 95315 — (209) 988-7214 — 5 mi. Services: mobile testing, OBD testing.
- **[Cen-Cal Truck Check](https://ctcfinder.com/tester/cen-cal-truck-check-atwater/)** — 3292 Mariner Ct, Atwater, CA 95301 — (209) 628-3882 — 6 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Israel Vargas](https://ctcfinder.com/tester/israel-vargas-atwater/)** — Atwater, CA 95301 — (209) 321-8975 — 6 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mario Alejandro Garcia Tester](https://ctcfinder.com/tester/mario-alejandro-garcia-tester-atwater/)** — 2385 Redwood Ave, Atwater, CA 95301 — (209) 263-2529 — 6 mi. Services: mobile testing, OBD testing.