CSMS 64248000·Operational·February 26, 2025·View on csms.cbp.gov ↗

Reminder: Upcoming deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program

Plain-English explanation

CSMS 64248000 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on February 26, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Reminder: Upcoming deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program". 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 # 64248000 - Reminder: Upcoming deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program U.S. Customs and Border Protection sent this bulletin at 02/26/2025 05:03 PM EST Cargo Systems Messaging Service CSMS # 64248000 - Reminder: Upcoming deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program The refinements related to the EPA Hydrofluorocarbon (HFC) program will be deployed to the U.S. Customs and Border Protection (CBP) Automated Commercial Environment (ACE) PRODUCTION environment on March 1, 2025 . For any questions, please contact EPA at: HFCAllocation@epa.gov . For any questions about this CSMS please email crem@cbp.dhs.gov . Related Messages: CSMS # 64065330, 63839859, 63476238, 63114216 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 64248000?

CSMS 64248000 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Reminder: Upcoming deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program". 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 64248000 published?

CBP published CSMS 64248000 on February 26, 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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