CSMS 63964114·System update·January 31, 2025·View on csms.cbp.gov ↗

ACE Portal Modernization: ACE Portal User Access Management Functionality Deploying February 22

Plain-English explanation

CSMS 63964114 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on January 31, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "ACE Portal Modernization: ACE Portal User Access Management Functionality Deploying February 22". CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Message body

Full text as published by U.S. Customs and Border Protection

CSMS # 63964114 - ACE Portal Modernization: ACE Portal User Access Management Functionality Deploying February 22 U.S. Customs and Border Protection sent this bulletin at 01/31/2025 04:33 PM EST Cargo Systems Messaging Service CSMS # 63964114 - ACE Portal Modernization: ACE Portal User Access Management Functionality Deploying February 22 On February 22, 2025, U.S. Customs and Border Protection (CBP) will migrate Automated Commercial Environment Secure Data Portal (ACE Portal) account user access management functionality to the modernized ACE Portal. This change will only affect Trade Account Owners (TAO) and Proxy Trade Account Owners (PTAO). Trade Account Users will be unaffected. Migration of user access management functionality represents the final step of CBP’s ACE Portal modernization effort. Following this deployment, ACE Portal users will complete all ACE Portal functions in the modernized platform. Beginning at 10:00 p.m. ET on February 19, TAOs and PTAOs should cease all ACE Portal user access changes in the legacy ACE Portal to ensure that all user access is properly migrated to the modernized ACE Portal. Starting February 23, users will manage all user access to their ACE Portal account via the modernized user management tool. Users will not have access to this functionality in the legacy ACE Portal following this deployment. For more information about this deployment, including details about support calls, a demonstration, and training documents, please see the Trade Information Notice . Update your subscriptions, modify your password or e-mail address, or stop subscriptions at any time on your Subscriber Preferences Page . You will need to use your e-mail address to log in. If you have questions or problems with the subscription service, please contact subscriberhelp.govdelivery.com . This service is provided to you at no charge by U.S. Customs and Border Protection . Privacy Policy | GovDelivery is providing this information on behalf of U.S. Department of Homeland Security, and may not use the information for any other purposes. Powered by Privacy Policy | Cookie Statement | Help

Frequently asked questions

What is CSMS 63964114?

CSMS 63964114 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "ACE Portal Modernization: ACE Portal User Access Management Functionality Deploying February 22". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 63964114 published?

CBP published CSMS 63964114 on January 31, 2025. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Is the CBP CSMS the legally binding instruction?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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