US Investigates EU Carbon Border Tax Over Alleged Trade Barriers

Washington has launched an investigation into the European Union's Carbon Border Adjustment Mechanism (CBAM) to determine whether the levy harms American commerce and erects unfair trade barriers. According to an official document published Thursday, the Office of the United States Trade Representative (USTR) is examining the regulatory and financial impacts of the policy on American manufacturers, particularly as Brussels prepares to expand the scope of the tariff to additional industrial and consumer goods.

The USTR is soliciting feedback from American enterprises until November 9, scrutinizing the cost burdens, export impacts, and access limitations imposed by the mechanism. The agency specifically criticized the EU's use of default emission values, asserting that Brussels applies a "punitive markup" against foreign businesses unable to deliver specific emissions datasets. "The USTR is seeking comments on the impact of the CBAM on US trade with the EU, as well as the potential impact of the EU’s proposals to expand CBAM coverage," the official document stated, signaling rising friction under President Donald Trump's administration.

Initially launched to cover carbon-intensive imports including aluminum, cement, fertilizers, hydrogen, iron, and steel, CBAM aims to prevent carbon leakage and level competition between domestic and foreign producers. However, the measure has faced intense international pushback. The World Trade Organization recently established a dispute panel at Russia's request to probe the legality of the tax, with Moscow characterizing it as an illegal trade barrier accompanied by unfair domestic European subsidies.

Simultaneously, European institutions remain divided over upcoming revisions. While the European Commission seeks to widen coverage to items like automotive parts and appliances, member states and the European Parliament dispute which specific clean tech goods should be incorporated and whether emergency exemption clauses should be permitted. With the Irish EU Council presidency pushing for a unified compromise before late October, the American probe adds substantial external pressure on the bloc's climate-trade architecture.