More Information About the CARB Clean Truck Check Program

Clean Truck Check

Frequently Asked Questions

What is the Clean Truck Check test?

The test you need depends on your vehicle's age:

• For vehicles 2013 and newer (OBD equipped):

  • We perform the HD I/M test

  • Results are sent electronically to CARB

• For vehicles older than 2013:

  • We perform a functional inspection and PSIP test (opacity test)

  • We'll need access to the engine data plate, exhaust system, and throttle

What else do I need to do?

Besides the vehicle test, you must:

• Pay an annual fee through the CARB online portal: https://cleantruckcheck.arb.ca.gov/

Does Diesel Emissions Service offer Clean Truck Check testing?

Yes, we offer HD I/M testing at two locations:

• Redding, CA

• Sacramento, CA

Both locations have CARB-certified staff and equipment.

Who needs to participate in the Clean Truck Check program?

You need to participate if your vehicle:

• Has a diesel or hybrid engine

• Has a GVWR (gross vehicle weight rating) over 14,000 lbs

• Is registered in California (including non-commercial vehicles like RVs)

You can usually find your vehicle's GVWR on the driver's side door jamb label.

Which vehicles are exempt from the program?

The following vehicles don't need to participate:

• Zero-emission vehicles

• Military tactical vehicles

• Emergency vehicles

• Historical vehicles

• New vehicles with engines certified to the most stringent optional NOx standard (≤ 0.01 g/bhp-hr) - only from 2023-2027

• Motorhomes registered outside of California

• Vehicles with experimental permits

When is my testing deadline?

Starting January 2025:

• CA-registered vehicles: Deadline based on vehicle registration date

• Out-of-state vehicles: Deadline based on the last digit of the VIN

For specific deadline information, please check the official CARB website for the most up-to-date information

Don't let CARB compliance slow you down. Email us today and let us handle your vehicle registrations and compliance needs. 

info@bayareadieseltesting.com

CarbCleanTruckCheck411.com - We manage your CARB compliance, so you can drive your business forward.

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