The measure temporarily lowers Section 232 duties on selected agriculture and construction equipment, while making deeper tariff relief depend on documented U.S.-origin metal content.
The Trump Administration’s June 1 Proclamation reshapes U.S. Section 232 tariffs on steel, aluminium and copper in a move aimed at easing pressure on equipment manufacturers without abandoning protection for domestic metals production. From June 8 through December 31, 2027, selected agriculture, construction and industrial equipment imports will see duties reduced from 25% to 15%, while qualifying capital equipment using predominantly U.S.-origin metal may benefit from a 10% tariff rate.
Section 232 gives the U.S. President authority to restrict imports when they are found to “threaten to impair” national security. In this case, the tariff framework is being used to support domestic production of strategic metals while adjusting the treatment of downstream products that play a role in agriculture, construction, logistics, housing and industrial activity.
For the equipment sector, the most visible change is the temporary expansion of the reduced 15% tariff treatment. The Proclamation lowers duties from 25% to 15% for selected agricultural equipment and certain other covered products, including categories such as combines and harvesters, while also extending the 15% treatment to certain mobile industrial equipment, including bulldozers and forklifts, when imported from eligible trade partner countries. The changes apply to goods entered for consumption from June 8, 2026, through December 31, 2027.
The measure also introduces a stronger link between tariff relief and U.S.-origin metal content. According to the White House, qualifying capital equipment may be eligible for a 10% duty rate when it includes at least 85% U.S. melted and poured or smelted and cast steel or aluminium by weight. The Proclamation also lowers the threshold used to treat metal content as entirely U.S.-origin from 95% to 85% for aluminium, steel and copper.
This creates a new compliance challenge for manufacturers and importers. Eligibility will not depend only on the type of machine or where it is assembled. It will also depend on documentation showing the origin and weight of the metal content inside the product. For OEMs with global supply chains, that may require closer coordination with suppliers, customs teams and trade compliance specialists.
The Proclamation also applies different treatment by country. For products from Argentina, Ecuador, El Salvador, Guatemala, Japan, South Korea, Liechtenstein, Switzerland, Taiwan, the United Kingdom and EU member states, the duty calculation is tied to existing tariff rates. Where the current duty is below 15%, the combined duty will be brought up to 15%. Where the existing duty is already 15% or higher, no additional Section 232 duty applies under this specific provision.
Canada and Mexico are treated separately under the USMCA framework. For qualifying products, the 25% duty applies only to the non-U.S. content of the product. However, the Proclamation also sets a minimum effective duty of 15%, meaning that qualifying North American products may still face an additional tariff even when they contain significant U.S. content. U.S. Customs and Border Protection is expected to enforce the content certification rules, with penalties possible in cases of fraud or deliberate misrepresentation.
For equipment manufacturers, the immediate effect is a partial easing of tariff pressure. For dealers, rental companies, contractors and fleet owners, the impact will vary by product classification, country of origin, supplier structure and timing of import. Similar machines may therefore carry different cost implications depending on whether they qualify for the reduced rate, the 10% treatment or the USMCA-related calculation.
AEM said it has engaged with the White House, the Department of Commerce and the United States Trade Representative since the introduction of Section 232 tariffs, pressing for relief for equipment manufacturers and their customers. The association described the new Proclamation as a recognition that tariffs affect equipment costs and competitiveness, while giving manufacturers more time to adjust sourcing and production strategies.
Beyond the immediate tariff reduction, the Proclamation points to a more detailed and content-based approach to trade policy. For the equipment industry, the issue is no longer only the tariff rate itself. It is also the ability to prove where metal inputs come from, how much U.S.-origin content is used, and whether supply chains can be adapted without disrupting cost, availability or production planning.
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