The US Section 301 is a provision of the Trade Act of 1974 (19 U.S.C. § 2411) that grants the Office of the United States Trade Representative (USTR) the authority to investigate and respond to foreign trade practices deemed unfair. It was created in 1974 to provide the U.S. government with a legal framework to address "unjustifiable," "unreasonable," or "discriminatory" acts by foreign governments that burden or restrict U.S. commerce. The original intent was to compel trading partners to negotiate and open their markets to U.S. exports.
The mechanism allows the USTR to self-initiate an investigation or act on a petition from a U.S. firm or industry group. If the USTR determines that a foreign act violates a trade agreement or is unjustifiable and burdens U.S. commerce, action is mandatory. The authorized actions include imposing new tariffs, withdrawing or suspending trade agreement concessions, or negotiating binding agreements to eliminate the practice. The law does not require the U.S. to wait for authorization from the World Trade Organization (WTO) before taking enforcement actions.
Section 301 is closely connected to the WTO's Dispute Settlement Understanding (DSU), which was established in 1995 and led to a significant decrease in formal Section 301 investigations as the U.S. initially favored the multilateral process. However, the provision was revitalized by the Trump administration in 2017 to impose tariffs on China over intellectual property and technology transfer policies. Recently, the use of Section 301 has broadened, with the USTR initiating new investigations in March 2026 against 16 economies, including India, over "structural excess capacity" in manufacturing sectors. The USTR also initiated investigations against 60 economies in March 2026 regarding the failure to enforce prohibitions on the importation of goods made with forced labor.