CSMS 57460526·Operational·August 25, 2023·View on csms.cbp.gov ↗

ACE Portal Modernization Phase 4: Additional Functionality Delayed

Plain-English explanation

CSMS 57460526 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on August 25, 2023. It carries the official CBP guidance brokers and importers must follow for the topic — "ACE Portal Modernization Phase 4: Additional Functionality Delayed". 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 # 57460526 - ACE Portal Modernization Phase 4: Additional Functionality Delayed U.S. Customs and Border Protection sent this bulletin at 08/25/2023 12:58 PM EDT Cargo Systems Messaging Service CSMS # 57460526 - ACE Portal Modernization Phase 4: Additional Functionality Delayed U.S. Customs and Border Protection (CBP) has delayed the migration of Declarations-related functionality (under the Importer account) to the modernized ACE Secure Data Portal (ACE Portal). This functionality was originally set to migrate on August 29, 2023. A new migration date has not yet been determined. Also, due to the deployment delay, the support call scheduled for Thursday, August 31 at 3:00 p.m. ET has been cancelled. For more details about the functionality released throughout Phase 4 of the ACE Portal Modernization, including information about training, deployment support calls, and technical help, please review the new Phase 4 information on the ACE Portal Modernization webpage . You can also visit the ACE Portal Modernization FAQ webpage . Phase 4 of the ACE Portal Modernization is expected to continue through September 2023. ACE Portal functionality will be migrated to the modernized platform gradually, and details about future Phase 4 releases will be shared through CSMS. 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 57460526?

CSMS 57460526 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "ACE Portal Modernization Phase 4: Additional Functionality Delayed". 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 57460526 published?

CBP published CSMS 57460526 on August 25, 2023. 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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