The U.S. trade enforcement environment has changed more in the past twelve months than in any comparable period in recent memory, and the pace of change has not slowed. A Supreme Court ruling in February 2026 invalidated the tariff framework that had defined U.S. trade policy throughout 2025, and the administration’s response has already produced new statutory authorities, a new global surcharge, and the broadest set of trade investigations ever launched under a single statute.
For businesses importing into the United States — and for the attorneys advising them — a working understanding of where things stand today is essential. What follows is a plain-language overview of the statutes, agencies, and concepts most relevant to current practice.
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