CSMS 45993349·System update·January 29, 2021·View on csms.cbp.gov ↗

ACE PRODUCTION Scheduled Maintenance, Sat. Jan 30, 2021@ 10pm to 4am ET Sun. Jan 31

Plain-English explanation

CSMS 45993349 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on January 29, 2021. It carries the official CBP guidance brokers and importers must follow for the topic — "ACE PRODUCTION Scheduled Maintenance, Sat. Jan 30, 2021@ 10pm to 4am ET Sun. Jan 31". 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 #45993349 - ACE PRODUCTION Scheduled Maintenance, Sat. Jan 30, 2021@ 10pm to 4am ET Sun. Jan 31 U.S. Customs and Border Protection sent this bulletin at 01/29/2021 03:15 PM EST Cargo Systems Messaging Service CSMS #45993349 - ACE PRODUCTION Scheduled Maintenance, Sat. Jan 30, 2021@ 10pm to 4am ET Sun. Jan 31 There will be ACE PRODUCTION regularly-scheduled Maintenance Saturday evening, January 30, 2021 from 10:00pm ET to 4:00am ET Sunday, January 31, 2021 for ACE Infrastructure maintenance and the following ACE Deployment: ACE Import Manifest Truck Manifest: Fixed issue where entries added after a trip was released/exited remained in ‘Arrived’ status. 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 45993349?

CSMS 45993349 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "ACE PRODUCTION Scheduled Maintenance, Sat. Jan 30, 2021@ 10pm to 4am ET Sun. Jan 31". 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 45993349 published?

CBP published CSMS 45993349 on January 29, 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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