Proclamation 10947
Adjusting Imports of Aluminum and Steel Into the United States
This proclamation doubles the existing Section 232 tariffs on steel and aluminum imports from 25% to 50% ad valorem, effective June 4, 2025. It modifies how Executive Order 14289's tariffs interact with these duties, subjects non-steel/non-aluminum content to reciprocal tariffs under EO 14257, mandates strict CBP compliance enforcement, and carves out the United Kingdom at 25% pending potential EPD implementation or quota adjustments after July 9, 2025.