CSMS 55900891·System update·April 14, 2023·View on csms.cbp.gov ↗

UPDATED: Truck Manifest Modernization will be removed from legacy ACE Portal

Plain-English explanation

CSMS 55900891 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on April 14, 2023. It carries the official CBP guidance brokers and importers must follow for the topic — "UPDATED: Truck Manifest Modernization will be removed from legacy 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 # 55900891 - UPDATED: Truck Manifest Modernization will be removed from legacy ACE Portal U.S. Customs and Border Protection sent this bulletin at 04/14/2023 05:18 PM EDT Cargo Systems Messaging Service CSMS # 55900891 - UPDATED: Truck Manifest Modernization will be removed from legacy ACE Portal On April 15, 2023, U.S. Customs and Border Protection (CBP) will remove access in the legacy ACE Portal to Truck Manifest Modernization only. Access to AESDirect will remain in the legacy ACE Portal at this time. The link to the Truck Manifest Modernization is now available in the modernized ACE Portal References tab. For additional information on the ACE Portal Modernization effort, including upcoming deployments, visit the ACE Portal Modernization webpage . For questions about the ACE Portal Modernization, contact ACEPortalModHelp@cbp.dhs.gov . Related message: CSMS #55881247 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 55900891?

CSMS 55900891 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "UPDATED: Truck Manifest Modernization will be removed from legacy 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 55900891 published?

CBP published CSMS 55900891 on April 14, 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.

Learn more

Tandom guides relevant to CBP CSMS messages

Subscribe to and triage CBP CSMS messages

How to subscribe to CBP Cargo Systems Messaging Service and triage the messages that change broker filing behavior, without losing the ones that matter.

Open resource

Real-time alerts when a CSMS message changes a duty rate

Set up alerts when a CBP CSMS message changes a duty rate on an HTS code you depend on. Built for brokers, forwarders, and importer compliance teams.