Overview
- The Court ruled 6–3 that IEEPA does not authorize tariffs, with Chief Justice John Roberts underscoring that Congress holds tariff authority.
- The decision invalidates the administration’s IEEPA-based duties on imports from Canada, Mexico, China and other trading partners.
- Within hours, the president invoked Section 122 to impose a global levy initially set at 10 percent and later stated as 15 percent, scheduled to start Feb. 24 for 150 days.
- Section 122 authority is narrowly constrained by statute, including a 15 percent cap and a maximum 150‑day duration without congressional approval.
- USTR Jamieson Greer said several Section 301 investigations will proceed on an accelerated timeline, with probes expected to cover major partners and issues such as industrial overcapacity, pharmaceutical pricing, tech discrimination and digital services taxes.