CSMS 52673901·Operational·July 20, 2022·View on csms.cbp.gov ↗

Intermittent connectivity issues ACE and TMM

Plain-English explanation

CSMS 52673901 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on July 20, 2022. It carries the official CBP guidance brokers and importers must follow for the topic — "Intermittent connectivity issues ACE and TMM". 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 #52673901 - Intermittent connectivity issues ACE and TMM U.S. Customs and Border Protection sent this bulletin at 07/20/2022 12:10 PM EDT Cargo Systems Messaging Service CSMS #52673901 - Intermittent connectivity issues ACE and TMM CBP technicians are aware that access to ACE and TMM (Truck Manifest Modernization) systems is intermittent. We are in the process of troubleshooting and will provide continuous updates as they become available. 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 52673901?

CSMS 52673901 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Intermittent connectivity issues ACE and TMM". 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 52673901 published?

CBP published CSMS 52673901 on July 20, 2022. 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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