The document discusses incident management systems and the incident command system (ICS). It describes how ICS was developed in response to wildfires in southern California in 1970. ICS provides a standardized framework for managing emergency incidents and allows different agencies to work together. It has specific components including common terminology, a modular organization structure, integrated communications, and comprehensive resource management. The document also discusses the National Incident Management System (NIMS) and how it was established by the Department of Homeland Security.