CSMS Weekly Digest: Aug 1 - Aug 7, 2026
Here's your weekly summary of 6 CSMS messages from U.S. Customs and Border Protection.
Action Required(3)
This week's critical items include upcoming changes to Post Summary Correction processing, a UK pharmaceutical tariff reduction under Presidential Proclamation 11020, and a final call to register for CBP's August Trade Enforcement Webinars. Brokers should prioritize reviewing the PSC modifications and new UK tariff guidance to ensure compliance and avoid entry processing issues.
Final Reminder: Register for U.S. Customs and Border Protection’s August Trade Enforcement Webinars
This is a final reminder to register for U.S. Customs and Border Protection (CBP) Office of Trade’s free quarterly trade enforcement webinars scheduled for next week, August 10 and 12. These sessions ...
Modifications to the Processing of Post Summary Corrections
The purpose of this message is to announce modifications to the processing of Post Summary Corrections (PSCs). These modifications were announced in Federal Register Notice 91 FR 41053, “Modification ...
Reduction of Tariffs on Patented Pharmaceuticals and Pharmaceutical Ingredients for Products of the United Kingdom Implemented by Presidential Proclamation 11020
This message provides guidance regarding the reduction of tariffs on patented pharmaceuticals and associated pharmaceutical ingredients that are products of the United Kingdom amending Presidential Pr...
Policy Guidance(1)
CBP has announced modifications to how Post Summary Corrections are processed in ACE, which may affect current workflows for corrections filed after entry summary liquidation. Brokers should review CSMS #69428352 closely to identify any required adjustments to internal PSC procedures.
Tariff(2)
HSU 2619 brings the latest Harmonized System classification updates, and Presidential Proclamation 11020 implements reduced tariffs on patented pharmaceuticals and pharmaceutical ingredients originating from the United Kingdom. Brokers handling UK pharmaceutical imports should verify applicable HTS classifications and confirm correct duty rate application immediately.
Harmonized System Update (HSU) 2619
Harmonized System Update (HSU) 2619 was created on August 1, 2026, and contains 6 harmonized tariff records and 25 ABI records. HSU 2619 contains the Section 232 Pharmaceutical United Kingdom duty re...
Reduction of Tariffs on Patented Pharmaceuticals and Pharmaceutical Ingredients for Products of the United Kingdom Implemented by Presidential Proclamation 11020
This message provides guidance regarding the reduction of tariffs on patented pharmaceuticals and associated pharmaceutical ingredients that are products of the United Kingdom amending Presidential Pr...
System Maintenance(2)
A resolved quota processing issue in ACE was confirmed this week, and a standard invasive maintenance window is scheduled from 10:00 p.m. ET Saturday, August 8, through 4:00 a.m. ET Sunday, August 9, 2026. Plan accordingly for any quota-sensitive filings or ACE transactions that may fall within that window.
Resolved - Quota Processing Issue in the Automated Commercial Environment (ACE)
The issue with quota processing in the Automated Commercial Environment (ACE) related to specific chapter 99 harmonized tariff schedule (HTS) codes has been resolved. Related Message Number(s): CS...
ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, August 8, 2026 to 4:00 a.m. ET Sunday, August 9, 2026
There will be ACE production standard invasive maintenance from 10:00 p.m. ET Saturday, August 8, 2026 to 4:00 a.m. ET Sunday, August 9, 2026.
Deadline Reminder(1)
This is the final reminder to register for CBP's August Trade Enforcement Webinars — registration deadlines are imminent. Brokers who have not yet signed up should act now to secure a spot, as these sessions typically cover enforcement priorities directly relevant to compliance planning.