US flag Official website of the Department of Homeland Security

ANSI X-12: 601

Document Posting Date: 
May 11, 2022

In CERT:  May 10, 2022

In PROD:  May 11, 2022

This page provides the message formats and technical specifications necessary to electronically transmit data to CBP's automated systems.


Last modified: 
May 10, 2022