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Cargo System Messaging Service
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  About the Cargo Systems Messaging Service (CSMS)

Welcome to U.S. Customs and Border Protection’s (CBP’s) Cargo Systems Messaging Service (CSMS). CSMS is one of CBP’s methods for communicating to our trade partners news and updates on our automated systems – namely the Automated Commercial Environment (ACE).

If you’d like to receive immediate notifications of new CSMS messages then:

Please note: If a message is distributed to more than one group you will receiving duplicate copies based on how many groups you are signed up for.

If you’re already signed up you can change or cancel an existing account.

Visitors can also search the message archive by keywords, or simply browse by group. Content is distributed amongst the following topics:

• ACE Outreach Events
• ACE Portal Accounts
• ACE Reports
• Air Manifest
• Automated Broker Interface
• Cuentas en el Portal de ACE (Spanish)
• Export
• New ACE Programming
• Ocean Manifest
• Partner Government Agencies
• Rail Manifest
• Trade Policy Updates
• Transportistas de Camión
• Truck Manifest

Please note: Spanish translations of content is provided by CBP as a courtesy, and the English versions are considered official text. Any discrepancies that may arise in the available translations are not binding and have no legal effect for compliance or enforcement purposes.

See the most recent messages for a particular group by clicking any one of the following links: Automated Broker Interface, ACE Outreach Events, ACE Portal Accounts, ACE Reports, Air Manifest, Cuentas en el Portal de ACE (Spanish), Export, New ACE Programming, Ocean Manifest, Partner Government Agencies, Rail Manifest, Trade Policy Updates, Transportistas de Camion (Spanish), and Truck Manifest.

Visit the help section for more information on how to use CSMS.

CBP privacy policy information | CBP website technical questions | Instrucciones (Español) | Subscribe to CSMS