---
title: "Ajmer Shergill — Clean Truck Check, Fairfield, CA"
description: "Ajmer Shergill in Fairfield, 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/ajmer-shergill-fairfield/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Ajmer Shergill

Clean Truck Check tester in Fairfield, CA (Solano 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 | Fairfield, CA 94534 |
| County | Solano County |
| Phone | (707) 227-6194 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Ajmer Shergill 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 California CTC Mobile Testing in Fairfield, about 1 mile away. [See listing](https://ctcfinder.com/tester/california-ctc-mobile-testing-fairfield/).

## Clean Truck Check testers in Solano County

Ajmer Shergill is one of 38 testing businesses in Solano County on CARB's public tester list. 34 of them offer mobile testing and 21 do smoke opacity tests. In Fairfield itself there are 11 listed businesses, 10 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 Ajmer Shergill offer mobile Clean Truck Check testing?

Yes. Ajmer Shergill 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 Ajmer Shergill test a 2012 or older diesel truck?

Ajmer Shergill does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [California CTC Mobile Testing](https://ctcfinder.com/tester/california-ctc-mobile-testing-fairfield/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Ajmer Shergill charge for a Clean Truck Check?

Ajmer Shergill has not published prices with us; call (707) 227-6194 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 Ajmer Shergill a CARB-credentialed tester?

Ajmer Shergill 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

- **[California CTC Mobile Testing](https://ctcfinder.com/tester/california-ctc-mobile-testing-fairfield/)** — 5328 Venus Dr, Fairfield, CA 94534 — (707) 761-4000 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Chris Casilang](https://ctcfinder.com/tester/chris-casilang-fairfield/)** — Fairfield, CA 94534 — (707) 205-6922 — 1 mi. Services: OBD testing, smoke opacity (non-OBD) testing.
- **[Elite Truck & trailer Repair LLC](https://ctcfinder.com/tester/elite-truck-and-trailer-repair-llc-fairfield/)** — 505 Watt Dr Suite 5, Fairfield, CA 94534 — (707) 310-9779 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Golden State Emissions Pro](https://ctcfinder.com/tester/golden-state-emissions-pro-fairfield/)** — 4776 Opus Cir, Fairfield, CA 94534 — (707) 373-7897 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mobile Testing](https://ctcfinder.com/tester/mobile-testing-fairfield-2/)** — Fairfield, CA 94534 — (916) 538-7777 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Sohal Truck & Tires](https://ctcfinder.com/tester/sohal-truck-and-tires-fairfield/)** — 393 Watt Dr, Fairfield, CA 94534 — (707) 208-3032 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.