CSMS 66324213·Operational·September 23, 2025·View on csms.cbp.gov ↗

Entry Summary Limit Increase for Statements

Plain-English explanation

CSMS 66324213 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on September 23, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Entry Summary Limit Increase for Statements". 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 # 66324213 - Entry Summary Limit Increase for Statements U.S. Customs and Border Protection sent this bulletin at 09/23/2025 04:14 PM EDT Cargo Systems Messaging Service CSMS # 66324213 - Entry Summary Limit Increase for Statements U.S. Customs and Border Protection (CBP) recently released an enhancement in the Automated Commercial Environment (ACE) Certification (CERT) environment to increase the maximum number of entry summaries on a statement from 2,000 to 9,999. Following the recent suspension of Section 321 de minimis shipment duty exemption, CBP completed this CERT deployment to enable filers to test the processing of statements with more entry summaries. The Statement Processing: Daily Statement (v16) CATAIR document has been updated to reflect these changes and is available in the ‘Draft Chapters: Future Capabilities ’ section of CBP.gov CBP plans to deploy this enhancement in the ACE Production (PROD) environment on October 7, 2025. For questions, contact CBP’s Entry Summary, Accounts, & Revenue (ESAR) division at esar@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 66324213?

CSMS 66324213 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Entry Summary Limit Increase for Statements". 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 66324213 published?

CBP published CSMS 66324213 on September 23, 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.