This document discusses disaster preparedness and response planning for workplaces. It defines a disaster as a sudden catastrophic event that causes injury, death and property destruction. Being prepared helps minimize suffering and losses. Facilities need an "all-hazards" disaster plan that includes staff training, coordination with emergency services, and resource management. Plans should cover evacuation and sheltering-in-place for different disaster scenarios, both internal and external, natural or man-made. The document outlines setting up an incident command system and emergency codes to coordinate an effective response when disaster strikes.