Each school day, our nation's schools are entrusted to provide a safe and healthy learning environment for approximately 55 million elementary and secondary school students. Lessons learned from school emergencies highlight the importance of preparing school officials and first responders to implement emergency operations plans. By having plans in place to keep students and staff safe, schools play a key role in taking preventative and protective measures to stop an emergency from occurring or reduce the impact of an incident. Although schools are not traditional response organisations, when a school-based emergency occurs, school personnel respond immediately. They provide first aid, notify response partners, and provide instructions before first responders arrive. They also work with their community partners (ie: governmental organisations that have a responsibility in the school emergency operations plan to provide a cohesive, co-ordinated response). Community partners include first responders (law enforcement officers, fire officials, and emergency medical services personnel) as well as public and mental health entities. Families and communities expect schools to keep their children and youths safe from threats (human-caused emergencies such as crime and violence) and hazards (natural disasters, disease outbreaks, and accidents). In collaboration with their local government and community partners, schools can take steps to plan for these potential emergencies through the creation of a school Emergency Operations Plan (school EOP). This book examines development guides for public schools and institutes of higher learning in emergency operations planning which address a range of threats and hazards.