The Office of the United States Trade Representative (USTR) opened docket USTR-2026-0661 on 8 October on the effect on US trade of the EU's Carbon Border Adjustment Mechanism (CBAM), the levy on the carbon content of certain imports, and of proposals to expand its coverage1. Comments close on 10 November.
The docket follows USTR's annual comment window for the 2027 National Trade Estimate report, which named the EU among markets with restrictive technology requirements, and July's order for a Section 301 investigation into EU digital rules. A comment docket gathers submissions from companies and governments; it imposes no measure by itself.
