CSMS 66024069·Operational·August 25, 2025·View on csms.cbp.gov ↗

Auto-Rejection of Insufficient Cargo Description Shipper/Consignee Enhancement Release to ACE CERT Environment Today

Plain-English explanation

CSMS 66024069 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on August 25, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Auto-Rejection of Insufficient Cargo Description Shipper/Consignee Enhancement Release to ACE CERT Environment Today". 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 # 66024069 - Auto-Rejection of Insufficient Cargo Description Shipper/Consignee Enhancement Release to ACE CERT Environment Today U.S. Customs and Border Protection sent this bulletin at 08/25/2025 01:16 PM EDT Cargo Systems Messaging Service CSMS # 66024069 - Auto-Rejection of Insufficient Cargo Description Shipper/Consignee Enhancement Release to ACE CERT Environment Today U.S. Customs and Border Protection (CBP) has made available for testing in the Automated Commercial Environment (ACE) Certification Environment (CERT) the enhancement for Automated Rejection of Insufficient Cargo Description, Shipper Name, and Consignee Name. The deployment will take place today, from 5:00 p.m. to 8:00 p.m. EDT. CBP has updated the following implementation guides (see table of changes in each document) pertaining to the changes: Air Import Manifest Appendix A Ocean/Rail Import Manifest Appendix D ACE Ocean CAMIR Appendix H Common Errors Truck Manifest UNEDIFACT CUSRES SN ACE Truck Manifest ANSI X12 355 Message Standard Manifest Acceptance/Rejection (CUSRES) Truck Manifest ANSI X12 350 Message The release to the ACE Production Environment (PROD) is set to be deployed on September 27, 2025. Trade and Software Developers that submit via the Electronic Data Interface (EDI) will need to program and incorporate these changes. Please reach out to your Client Representative if you have any technical-related questions. For any questions about this release, should be directed to CREM@cbp.dhs.gov . Related message: CSMS # 65642102 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 66024069?

CSMS 66024069 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Auto-Rejection of Insufficient Cargo Description Shipper/Consignee Enhancement Release to ACE CERT Environment Today". 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 66024069 published?

CBP published CSMS 66024069 on August 25, 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.