Under Section 232 of the Trade Expansion Act of 1962, the president is adjusting imports of Steel and Aluminum to protect national security.
The following Executive orders and Fact Sheet on Steel and aluminum imports have been published:
Adjusting Imports of Steel into The United States – The White House
Adjusting Imports of Aluminum into The United States – The White House
Fact Sheet: President Donald J. Trump Restores Section 232 Tariffs – The White House