CSMS Weekly Digest: May 30 - Jun 5, 2026
Here's your weekly summary of 7 CSMS messages from U.S. Customs and Border Protection.
Action Required(2)
CBP has issued further adjustments to the Section 232 tariff regimes covering aluminum, steel, and copper imports — brokers should review the updated requirements and ensure classifications are current. HSU 2611 also requires immediate attention for any affected entries.
Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the United States
The purpose of this message is to provide guidance on the implementation of the June 1, 2026, Proclamation, “Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the Un...
Harmonized System Update (HSU) 2611
Harmonized System Update (HSU) 2611 was created on May 28, 2026, and contains six harmonized tariff records and eighteen automated broker interface (ABI) records. This HSU contains the Section 232 ...
Tariff(3)
Two Harmonized System Updates (HSU 2611 and 2612) have been issued alongside the latest Section 232 adjustments for aluminum, steel, and copper, signaling potential HTS classification changes that may impact duty rates and filing requirements. Brokers should cross-reference affected HTS codes against open and pending entries.
Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the United States
The purpose of this message is to provide guidance on the implementation of the June 1, 2026, Proclamation, “Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the Un...
Harmonized System Update (HSU) 2612
Harmonized System Update (HSU) 2612 was created on June 1, 2026, and contains 69 harmonized tariff records and 412 Automated Broker Interface (ABI) records. This HSU contains tariff updates related...
Harmonized System Update (HSU) 2611
Harmonized System Update (HSU) 2611 was created on May 28, 2026, and contains six harmonized tariff records and eighteen automated broker interface (ABI) records. This HSU contains the Section 232 ...
Pga Update(1)
CBP has released the quarterly update to the PGA Error Code Dictionary — brokers and trade tech teams should review any new or modified error codes to ensure accurate PGA filing and avoid unnecessary entry rejections.
System Maintenance(2)
ACE Certification will be unavailable June 3 from 5:00–8:00 p.m. ET, and ACE Production will undergo invasive maintenance the night of June 6–7 from 10:00 p.m. to 4:00 a.m. ET — plan filings accordingly to avoid disruptions during these windows.
ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, June 6, 2026 to 4:00 a.m. ET Sunday, June 7, 2026
There will be ACE production standard invasive maintenance from 10:00 p.m. ET Saturday, June 6, 2026, to 4:00 a.m. ET Sunday, June 7, 2026.
ACE Certification Standard Invasive Maintenance Window on June 3, 2026 from 5:00 p.m. ET to 8:00 p.m. ET
There will be an ACE certification standard invasive maintenance window on June 3, 2026, from 5:00 p.m. ET to 8:00 p.m. ET.
General Notice(1)
CBP's National Commodity Specialist Division has announced webinars scheduled for July 2026, offering brokers an opportunity to engage directly with commodity classification specialists on complex tariff questions.