CSMS 66205379·System update·September 11, 2025·View on csms.cbp.gov ↗

CORRECTION: ACE Drawback Error Code Changes Set to Deploy September 16

Plain-English explanation

CSMS 66205379 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on September 11, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "CORRECTION: ACE Drawback Error Code Changes Set to Deploy September 16". 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 # 66205379 - CORRECTION: ACE Drawback Error Code Changes Set to Deploy September 16 U.S. Customs and Border Protection sent this bulletin at 09/11/2025 03:55 PM EDT Cargo Systems Messaging Service CSMS # 66205379 - CORRECTION: ACE Drawback Error Code Changes Set to Deploy September 16 This correction updates the link to the draft ACE Drawback Error Dictionary and the meaning of the acronym ITIN. On September 16, 2025, U.S. Customs and Border Protection (CBP) will deploy two new error codes in the Automated Commercial Environment (ACE) Drawback application. The new codes, FD09 and FD10 , support recent executive orders. As part of the deployment, CBP will also enhance existing error code ID08 to return the Import Tracking Identification Number (ITIN), entry number, and line number. For more information on the changes, review the draft ACE Drawback Error Dictionary available in the “Draft Chapters: Future Capabilities” section of CBP’s CATAIR webpage . For questions, contact OTDrawback@cbp.dhs.gov or your CBP Client Representative. Related messages: CSMS # 65609730 , CSMS # 65932593 , and CSMS # 66192045 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 66205379?

CSMS 66205379 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "CORRECTION: ACE Drawback Error Code Changes Set to Deploy September 16". 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 66205379 published?

CBP published CSMS 66205379 on September 11, 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.