Further Strengthening Actions Taken to Adjust Imports of Aluminum into the United States

This proclamation declares updated actions regarding imports of aluminum into the United States for the period beginning with this proclamation issued July 20, 2026, adjusting the tariff regime originally established under section 232 to address aluminum imports that were found to threaten national security. It directs the Secretary of Commerce to implement modifications to the aluminum tariff regime—including changes to ad valorem duties and related measures described in prior proclamations—to strengthen domestic primary aluminum production and the defense industrial base, and cites the Secretary’s findings that existing duties have bolstered U.S. aluminum industries but that additional measures are needed to increase domestic supply.