11 March 2026

USTR initiates Section 301 investigations relating to structural excess capacity and production in manufacturing sectors

On March 11, the Office of the United States Trade Representative (USTR) announced new investigations under Section 301 of the Trade Act of 1974 relating to Acts, Policies, and Practices of Certain Economies Relating to Structural Excess Capacity. This announcement follows the recent Supreme Court ruling that tariffs enacted under the International Emergency Economic Powers Act (IEEPA) were unlawful. Additional Section 301 investigations may be initiated in the coming weeks.

Additional information is available in the attached WCEY Trade Alert.

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Attachment

USTR Section 301 investigations

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Contact Information

For additional information concerning this Alert, please contact:

Washington Council Ernst & Young

Document ID: 2026-0626