CSMS 64166463·Operational·February 19, 2025·View on csms.cbp.gov ↗

Procedures to Follow During CBP One™ Mobile Application Interruptions

Plain-English explanation

CSMS 64166463 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on February 19, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Procedures to Follow During CBP One™ Mobile Application Interruptions". 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 # 64166463 - Procedures to Follow During CBP One™ Mobile Application Interruptions U.S. Customs and Border Protection sent this bulletin at 02/19/2025 11:09 AM EST Cargo Systems Messaging Service CSMS # 64166463 - Procedures to Follow During CBP One™ Mobile Application Interruptions CBP One™ previously allowed members of the trade community to request CBP inspection appointments for perishable cargo and other processes, such as boarding vessels, at select ports of entry. CBP and the trade community work together to enable safeguarding measures to secure imports and exports from a multitude of risks. Agriculture threats, such as foreign animal diseases and exotic plant pests, are a risk to crops, livestock, the food supply and, the U.S. economy and national security To request cargo inspections, please contact your local port of entry. Contact information for CBP ports of entry is available at cbp.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 64166463?

CSMS 64166463 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Procedures to Follow During CBP One™ Mobile Application Interruptions". 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 64166463 published?

CBP published CSMS 64166463 on February 19, 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.

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