From the Document: "Section 232 allows the President to impose import restrictions based on an investigation and affirmative determination by the Department of Commerce (Commerce) that certain imports threaten to impair U.S. national security. President Trump initiated eight Section 232 investigations, and ultimately imposed tariffs under two investigations on steel and aluminum. Through new bilateral agreements, President Biden is addressing the Section 232 tariff measures taken by President Trump and has initiated a new investigation. Actions under Section 232 have generated debate in Congress and at the multilateral level in the World Trade Organization (WTO). Some in Congress support legislative options to amend the congressional delegation of authority."
CRS In Focus, IF10667
Congressional Research Service: https://crsreports.congress.gov/