President Trump Again Modifies Section 232 Tariffs on Steel, Aluminum, Copper

On Monday, June 1, 2026, President Trump signed a Proclamation modifying Section 232 measures on steel, aluminum, and copper tariffs, effective 12:01 AM ET on Monday, June 8, 2026. 

Key Updates from the Presidential Proclamation: 

Starting June 8, 2026, certain agricultural equipment, mobile industrial equipment, machinery, heating, ventilation, and air conditioning equipment listed in Annex 1-C will become subject to new changes. 

• The current 25% Section 232 tariff would be temporarily reduced to 15% through December 31, 2027. 
• Products imported from certain countries—including Argentina, Ecuador, El Salvador, Guatemala, Japan, South Korea, Liechtenstein, Switzerland, Taiwan, the United Kingdom, and European Union countries—would be subject to a total tariff rate of 15%, including any standard import duties. 
• Aluminum products that are entirely cast and smelted in the United States, and steel products that are entirely melted and poured in the United States, would be subject to a lower 10% tariff. 
• For products that qualify under the U.S.-Mexico-Canada Agreement (USMCA), the 25% Section 232 tariff would apply only to the non-U.S. portion of the product. However, a minimum 15% Section 232 tariff would still be required. 
• Certain steel and aluminum products, including steel racks and aluminum lithographic plates, would be added to the list of metal derivative products subject to a 25% tariff on their full value. 
• Of importance, the Proclamation would also make it easier for products to qualify for the lower 10% tariff. A product would only need to contain at least 85% U.S.-made steel, aluminum, or copper (down from the current 95% requirement) to be considered "entirely" made of U.S. materials.

To read the Presidential Proclamation, click here.

The RV Industry Association will continue to provide information as it becomes available, including guidance on whether importers should file their own lawsuits. For a comprehensive overview of tariffs currently enacted, view the tariff tracker. 

For additional information, please contact Samantha Rocci, Director of Federal Affairs (srocci@rvia.org).