CSMS 63759994·Operational·January 15, 2025·View on csms.cbp.gov ↗

ACE Multi

Plain-English explanation

CSMS 63759994 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on January 15, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "ACE Multi". 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 # 63759994 - ACE Multi-Modal Manifest Air Environment “Transfer to Exam” Enhancement Set to Deploy on February 15 U.S. Customs and Border Protection sent this bulletin at 01/15/2025 02:02 PM EST Cargo Systems Messaging Service CSMS # 63759994 - ACE Multi-Modal Manifest Air Environment “Transfer to Exam” Enhancement Set to Deploy on February 15 On February 15, 2025, U.S. Customs and Border Protection (CBP) will deploy an enhancement to ACE Multi-Modal Manifest (MMM) to facilitate the transfer of held air cargo shipments to Centralized Examination Stations (CESs) and Container Freight Stations (CFSs). Below is an overview of the changes that impact trade users: ACE MMM will now generate the correct 1X code when CBP personnel select the “Transfer for Exam” function in the air mode of transportation (MOT). All Automated Manifest System (AMS) participants associated to the air waybill will receive the 1X code through ACE Electronic Data Interchange (EDI) via Air EDI Notifications. CESs and non-AMS participant CFSs will not receive the 1X code, but they will still benefit from expedited processing. Discontinuing use of CBP Form 6043 for transfers for exam: With the correct 1X code being generated, the use of CBP Form 6043 Delivery Tickets for air cargo transfers will no longer be required. The bonded carrier is responsible for the authorized movement to the CES/CFS while under CBP hold. The Disposition/Status Action Codes table was updated to add status action code 84: CANCEL TRANSFER FOR EXAM. This existing code was added to notify trade when a cancel transfer for exam on an Airway BOL was executed by an officer. Join the Biweekly Trade Support Call for more information! CBP conducts a biweekly trade call to inform the trade community of upcoming ACE deployments and updates. This enhancement will be discussed during the next call: January 23, 2025 2:00 - 3:00 PM ET Join via WebEx Meeting Meeting Password: ACE1 (2231 from phones) Participants are encouraged to join at the start of the call when CBP will provide a brief deployment status update. A question-and-answer segment will follow. Calls may end early if all questions have been addressed. For more information on disposition codes and descriptions, please refer to CBP Automated Manifest Interface Requirements (CAMIR) Ace Air Import Manifest Appendix A – Codes. For any technical questions regarding this update, please contact your assigned Client Representative. For other questions regarding this change, please contact CREM@cbp.dhs.gov . Related messages: CSMS # 63109625 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 63759994?

CSMS 63759994 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "ACE Multi". 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 63759994 published?

CBP published CSMS 63759994 on January 15, 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.

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.