CARB Registration Lookup Tool

Determine if your Thermo King reefer trailer complies with California Air Resources Board (CARB) Equipment Registration System regulations.*

Unit Serial Number Format is: ##########.
Serial numbers are not case sensitive
Search for multiple serial numbers in the following ways: Enter each serial number individually separated by a comma, or copy and paste a list of serial numbers from an Excel file
Click on the 'Lookup' button when ready to search

Scroll horizontally to see more of the table

Unit Serial #	Engine Item #	Engine Mfg Emissions Label	Engine Model Emissions Label	Engine Model Year	Engine Serial Number	Rated Power KW	Unit Item #	Unit Model Name	Unit Model Year	Message

Engine Data Disclaimer:

The engine data for the TRU/TRU Genset serial number(s) requested define the engine that was installed at the Thermo King factory. The engine data may not be representative of the engine that is currently installed in the TRU/TRU Genset if the engine was replaced for any reason. TRU - Transport Refrigeration Unit

California Air Resources Board website: California Air Resources Board Equipment Registration System is a product of the California Environmental Protection Agency. Thermo King holds no rights to this site.

*The lookup tool currently displays only trailer reefer data. Please check back for additional models.