U.S. disaster management policy has evolved in a piecemeal and multi-level fashion over time. Key laws include the National Flood Insurance Act of 1968, Stafford Act of 1988, and Disaster Mitigation Act of 2000. The system operates in a bottom-up manner from local to state to federal levels. Recent major events like Hurricane Katrina and Superstorm Sandy have prompted shifts towards prioritizing preparedness, mitigation and recovery. Emerging challenges include integrating statutory policies with new administrative systems and ensuring coordinated long-term hazard mitigation and adaptation.