On November 5, 2025, the U.S. Supreme Court heard oral arguments in a consolidation of actions challenging tariffs imposed pursuant to the International Emergency Economic Powers Act (IEEPA). These actions cover tariffs, such as:
IEEPA China Fentanyl
IEEPA Mexico
IEEPA Canada
IEEPA Universal/Reciprocal
At this time, importers should urgently consider filing their own court actions to challenge IEEPA tariffs to avoid having to file transactional refund requests, and secure comparable treatment as the lead litigants in this case.













