CSMS 66714741·System update·November 4, 2025·View on csms.cbp.gov ↗

REMINDER: Enhanced ACE Portal Account Application Now Available – Deployment Support Call set for November 5

Plain-English explanation

CSMS 66714741 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on November 4, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "REMINDER: Enhanced ACE Portal Account Application Now Available – Deployment Support Call set for November 5". 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 # 66714741 - REMINDER: Enhanced ACE Portal Account Application Now Available – Deployment Support Call set for November 5 U.S. Customs and Border Protection sent this bulletin at 11/04/2025 10:57 AM EST Cargo Systems Messaging Service CSMS # 66714741 - REMINDER: Enhanced ACE Portal Account Application Now Available – Deployment Support Call set for November 5 On October 30, 2025, U.S. Customs and Border Protection (CBP) automated the process for applying for a new Automated Commercial Environment (ACE) Secure Data Portal (ACE Portal) top account with the Importer sub-account view. For more information, review the Automated ACE Portal Application for Importer Accounts Information Notice. The new application tool is available at this link: ACE Portal Importer Account Application To help users implement the new tool, CBP will hold a deployment support call for the trade community on Wednesday, November 5: Date: Wednesday, November 5, 2025 Time: 2:00 p.m. ET Call link: Join via Microsoft Teams CBP also prepared the following training guide: Automated ACE Portal Account Application for Importers . Related messages: 66674007 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 66714741?

CSMS 66714741 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "REMINDER: Enhanced ACE Portal Account Application Now Available – Deployment Support Call set for November 5". 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 66714741 published?

CBP published CSMS 66714741 on November 4, 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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