---
title: "BIT Compliance Assurance — Clean Truck Check, Shafter, CA"
description: "BIT Compliance Assurance in Shafter, 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/bit-compliance-assurance-shafter/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# BIT Compliance Assurance

Clean Truck Check tester in Shafter, CA (Kern 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 | 3308 Trail River Ln, Shafter, CA 93263 |
| County | Kern County |
| Phone | (661) 742-7827 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks BIT Compliance Assurance 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 Kern County

BIT Compliance Assurance is one of 107 testing businesses in Kern County on CARB's public tester list. 89 of them offer mobile testing and 53 do smoke opacity tests. In Shafter itself there are 4 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 BIT Compliance Assurance offer mobile Clean Truck Check testing?

Yes. BIT Compliance Assurance 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 BIT Compliance Assurance test a 2012 or older diesel truck?

Yes. BIT Compliance Assurance 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 BIT Compliance Assurance charge for a Clean Truck Check?

BIT Compliance Assurance has not published prices with us; call (661) 742-7827 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 BIT Compliance Assurance a CARB-credentialed tester?

BIT Compliance Assurance 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

- **[On Site Clean Truck Check Carb Testing](https://ctcfinder.com/tester/on-site-clean-truck-check-carb-testing-shafter/)** — 262 Rodriguez Ave, Shafter, CA 93263 — (661) 910-2585 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Perez Trans LLC.](https://ctcfinder.com/tester/perez-trans-llc-shafter/)** — 551 Drake Dr, Shafter, CA 93263 — (661) 978-1588 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Spencers Mobile Clean Truck Check llc](https://ctcfinder.com/tester/spencers-mobile-clean-truck-check-llc-shafter/)** — 214 Walnut St, Shafter, CA 93263 — (661) 581-5355 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Cal Testing Services Inc](https://ctcfinder.com/tester/cal-testing-services-inc-bakersfield/)** — 17306 Landeron Ct, Bakersfield, CA 93314 — (559) 259-7884 — 7 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[John Reichenberg](https://ctcfinder.com/tester/john-reichenberg-bakersfield/)** — Bakersfield, CA 93314 — (661) 820-2679 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Kern Clean Truck Inspections LLC](https://ctcfinder.com/tester/kern-clean-truck-inspections-llc-bakersfield/)** — 10112 Revere Beach Dr, Bakersfield, CA 93314 — (661) 563-1643 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.