CSMS Weekly Digest: Dec 6 - Dec 12, 2025
Weekly summary of 7 CSMS messages from U.S. Customs and Border Protection.
Action Required(3)
Customs brokers must prepare for new seafood import certification requirements under the Marine Mammal Protection Act, updated US-Korea trade deal tariff corrections, and upcoming enforcement of e214 submission validations.
NMFS Update: Implementation of Seafood Import Prohibitions under the Marine Mammal Protection Act Import Provisions; Certification of Admissibility for Designated Fish and Fish Products; Announcement of Upcoming Webinars
The National Marine Fisheries Service (NMFS) is issuing this message to inform industry that, beginning January 1, 2026, certain fish and fish products from nations with fisheries that have been denie...
Correction – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal
This guidance is being issued to provide a correction to a single reference in the Harmonized Tariff Schedule reporting instructions for Reciprocal tariffs applicable to products of South Korea, publi...
US Customs and Border Protection to enforce validations related to e214 submissions
U.S. Customs and Border Protection (CBP) reminds filers about the FIRMS Code, Zone ID, and Port of Entry data submitted to the Automated Commercial Environment (ACE) in Foreign Trade Zone Admission tr...
Tariff(2)
CBP has issued corrections to the US-Korea Strategic Trade and Investment Deal implementation and released Harmonized System Update 2542 with classification changes.
Correction – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal
This guidance is being issued to provide a correction to a single reference in the Harmonized Tariff Schedule reporting instructions for Reciprocal tariffs applicable to products of South Korea, publi...
Harmonized System Update (HSU) 2542
The Harmonized System Update (HSU) 2542 was created on December 4, 2025. It contains thirteen Harmonized Tariff records and forty ABI records. HSU 2542 contains the updates pursuant to the United St...
Pga Update(1)
NMFS is implementing new seafood import prohibitions and certification requirements under the Marine Mammal Protection Act, with upcoming webinars to explain the changes.
System Update(2)
CBP has posted an updated ACE development schedule and will begin enforcing new validations for e214 submissions.
Updated ACE Development and Deployment Schedule Posted to CBP.gov/ACE
An updated Automated Commercial Environment (ACE) Development and Deployment Schedule [ https://www.cbp.gov/document/guidance/ace-development-and-deployment-schedule ] is now available on CBP.gov. Ple...
US Customs and Border Protection to enforce validations related to e214 submissions
U.S. Customs and Border Protection (CBP) reminds filers about the FIRMS Code, Zone ID, and Port of Entry data submitted to the Automated Commercial Environment (ACE) in Foreign Trade Zone Admission tr...
System Maintenance(2)
ACE systems will undergo maintenance on December 10th (Certification environment) and December 13-14th (Production environment) with temporary service disruptions expected.
ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, December 13, 2025, to 4:00 a.m. ET Sunday, December 14, 2025
Please be advised there will be an ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, December 13, 2025, to 4:00 a.m. ET Sunday, December 14, 2025.
ACE Certification Standard Invasive Maintenance Window on Wednesday, December 10, 2025, from 5:00 pm to 8:00 pm ET
*Please be advised there will be an ACE Certification Standard Invasive Maintenance Window on Wednesday, December 10, 2025, from 5:00 pm to 8:00 pm ET.*