Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper into the United States

This proclamation declares adjustments to tariff regimes on imports of aluminum, steel, and copper effective June 1, 2026, modifying previous proclamations that imposed additional ad valorem duties under section 232 of the Trade Expansion Act of 1962. It directs the Secretary of Commerce and other relevant federal agencies to implement and monitor specified tariff rates — including a 50% ad valorem duty on products made of those metals, a 25% duty on derivative products predominately composed of those metals, and a temporarily reduced 15% duty on a subset of derivative products (fixed industrial machinery and power equipment) — and to take measures to address impacts on domestic industries