Section 406 Hazard Mitigation helps FEMA PA applicants turn disaster repairs into long-term resilience projects. This Govstar resource explains how to use 406 funding to harden damaged infrastructure, protect functionally interdependent systems, and avoid repetitive loss. Topics include Categories C–G eligibility, damaged-portion nexus, PA 406 vs. HMGP stacking, Appendix J, the 15% and 100% cost-effectiveness rules, BCA strategy, floodwalls, drainage, safe rooms, MEP elevation, generator quick-connects, bridge and marine hardening, EHP compliance, HMP workflow, historic assets, and snow declaration rules.