---
title: "Rajinder Singh — Clean Truck Check, Lathrop, CA | CTC Finder"
description: "Rajinder Singh in Lathrop, 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/rajinder-singh-lathrop/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Rajinder Singh

Clean Truck Check tester in Lathrop, CA (San Joaquin 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 | Lathrop, CA 95330 |
| County | San Joaquin County |
| Phone | (510) 557-6988 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Rajinder Singh 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 Swift Transportation in Lathrop, about 1 mile away. [See listing](https://ctcfinder.com/tester/swift-transportation-lathrop/).

## Clean Truck Check testers in San Joaquin County

Rajinder Singh is one of 124 testing businesses in San Joaquin County on CARB's public tester list. 111 of them offer mobile testing and 53 do smoke opacity tests. In Lathrop itself there are 5 listed businesses, 4 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 Rajinder Singh offer mobile Clean Truck Check testing?

Yes. Rajinder Singh 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 Rajinder Singh test a 2012 or older diesel truck?

Rajinder Singh does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Swift Transportation](https://ctcfinder.com/tester/swift-transportation-lathrop/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Rajinder Singh charge for a Clean Truck Check?

Rajinder Singh has not published prices with us; call (510) 557-6988 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 Rajinder Singh a CARB-credentialed tester?

Rajinder Singh 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

- **[Manvir Bhaura](https://ctcfinder.com/tester/manvir-bhaura-lathrop/)** — Lathrop, CA 95330 — (510) 695-4836 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Priscila Vasquez](https://ctcfinder.com/tester/priscila-vasquez-lathrop/)** — Lathrop, CA 95330 — (650) 315-2445 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Reliable Registration Svcs INC](https://ctcfinder.com/tester/reliable-registration-svcs-inc-lathrop/)** — 97 Darcy Pkwy, Lathrop, CA 95330 — (209) 670-5264 — 1 mi. Services: not listed.
- **[Swift Transportation](https://ctcfinder.com/tester/swift-transportation-lathrop/)** — Lathrop, CA 95330 — (209) 910-7153 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[First Class Service Trucking](https://ctcfinder.com/tester/first-class-service-trucking-french-camp/)** — 161 Transportation Ct, French Camp, CA 95231 — (209) 625-5700 — 4 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Jose Meneses](https://ctcfinder.com/tester/jose-meneses-french-camp/)** — French Camp, CA 95231 — (209) 640-4682 — 4 mi. Services: mobile testing, OBD testing.