CSMS 49444642·System update·September 19, 2021·View on csms.cbp.gov ↗

PRODUCTION ACE Maintenance Today, Sunday, Sept. 19th, 3pm to 5pm ET

Plain-English explanation

CSMS 49444642 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on September 19, 2021. It carries the official CBP guidance brokers and importers must follow for the topic — "PRODUCTION ACE Maintenance Today, Sunday, Sept. 19th, 3pm to 5pm ET". 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 #49444642 - PRODUCTION ACE Maintenance Today, Sunday, Sept. 19th, 3pm to 5pm ET U.S. Customs and Border Protection sent this bulletin at 09/19/2021 02:35 PM EDT Cargo Systems Messaging Service CSMS #49444642 - PRODUCTION ACE Maintenance Today, Sunday, Sept. 19th, 3pm to 5pm ET To resolve the current issue with the ACE Truck Manifest Trade Portal, ACE will perform Maintenance in the Production environment this afternoon, Sunday, September 19, 2021, from 3pm to 5pm ET. During this time the ACE Portal as well as ACE EDI message processing will be impacted. 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 49444642?

CSMS 49444642 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "PRODUCTION ACE Maintenance Today, Sunday, Sept. 19th, 3pm to 5pm ET". 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 49444642 published?

CBP published CSMS 49444642 on September 19, 2021. 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.

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