CSMS 58938644·Operational·January 5, 2024·View on csms.cbp.gov ↗

Additional Features Set to Retire in Legacy ACE Portal on January 6

Plain-English explanation

CSMS 58938644 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on January 5, 2024. It carries the official CBP guidance brokers and importers must follow for the topic — "Additional Features Set to Retire in Legacy ACE Portal on January 6". 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 # 58938644 - Additional Features Set to Retire in Legacy ACE Portal on January 6 U.S. Customs and Border Protection sent this bulletin at 01/05/2024 11:36 AM EST Cargo Systems Messaging Service CSMS # 58938644 - Additional Features Set to Retire in Legacy ACE Portal on January 6 On January 6, 2024, the following functionalities will be retired from the legacy ACE Portal : Harmonized Tariff Schedule (HTS) link under the References tab A link to the HTS is in the modernized ACE Portal under the References tab Gold Rate link under the References tab A link to Gold Rate information is in the modernized ACE Portal under the References tab Conversion Calculator tool under the References tab The Conversion Calculator will be retired from the legacy ACE Portal, and there are no current plans to provide comparable functionality in the modernized ACE Portal. For additional information on the ACE Portal Modernization effort, visit the ACE Portal Modernization webpage . CBP will provide additional information on upcoming enhancements as it becomes available. For questions about the ACE Portal Modernization, contact ACEPortalModHelp@cbp.dhs.gov . 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 58938644?

CSMS 58938644 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Additional Features Set to Retire in Legacy ACE Portal on January 6". 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 58938644 published?

CBP published CSMS 58938644 on January 5, 2024. 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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