CSMS 55946144·Operational·April 18, 2023·View on csms.cbp.gov ↗

ACE Forms Now Available in the Modernized ACE Portal

Plain-English explanation

CSMS 55946144 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on April 18, 2023. It carries the official CBP guidance brokers and importers must follow for the topic — "ACE Forms Now Available in the Modernized ACE Portal". 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 # 55946144 - ACE Forms Now Available in the Modernized ACE Portal U.S. Customs and Border Protection sent this bulletin at 04/18/2023 05:03 PM EDT Cargo Systems Messaging Service CSMS # 55946144 - ACE Forms Now Available in the Modernized ACE Portal Beginning on April 18, 2023, trade users with Importer accounts can access the ACE Forms tool via a launch button in the modernized ACE Portal. The Forms button is available on the Importer Account page. Details on accessing ACE Forms via the modernized ACE Portal are available in the Modernized ACE Forms Quick Reference Guide . For technical issues, contact the CBP ACE Account Service Desk (ASD) at (866) 530-4172 or ace.support@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 55946144?

CSMS 55946144 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "ACE Forms Now Available in the Modernized ACE Portal". 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 55946144 published?

CBP published CSMS 55946144 on April 18, 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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