Executive Order 13546
Optimizing the Security of Biological Select Agents and Toxins in the United States
This executive order directs a risk-based overhaul of how the U.S. regulates dangerous biological agents and toxins (BSAT). It mandates creating a highest-risk "Tier 1" subset of pathogens, revising security regulations, coordinating federal oversight across multiple agencies, and establishing an advisory panel to guide implementation.