This vital Federal Emergency Management Agency (FEMA) training course manual is one of the series of influential FEMA documents providing crucial material on disasters and emergency response. Course Background Information - This course provides training on and resources for personnel who require a basic understanding of the Incident Command System (ICS). ICS 100, Introduction to the Incident Command System, introduces the Incident Command System (ICS) and provides the foundation for higher level ICS training. This course describes the history, features and principles, and organizational structure of the Incident Command System. It also explains the relationship between ICS and the National Incident Management System (NIMS). The target audience includes persons involved with emergency planning, and response or recovery efforts. The NIMS Integration Center (NIC) is responsible for facilitating the development of national guidelines for incident management training and exercises at all jurisdictional levels. This document provides guidelines for Incident Command System (ICS) instructors. While individual agencies and organizations are responsible for establishing and certifying instructors, the NIC urges those agencies and organizations to follow these guidelines. The NIC recommends the following general instructor guidelines: Instructor Levels) Lead instructors must have sufficient experience in presenting all units of the course to be capable of last-minute substitution for unit instructors. Unit instructors must be experienced in the lesson content they are presenting. The training is comprised of the following lessons: Unit 1: Course Overview; Unit 2: ICS Overview; Unit 3: Basic Features of ICS; Unit 4: Incident Commander & Command Staff Functions; Unit 5: General Staff Functions; Unit 6: ICS Facilities; Unit 7: Common Responsibilities; Unit 8: Course Summary.