The All Hazards Disaster Response (AHDR) course employs a systems-based approach to disaster preparedness and response, with a focus on caring for ill and injured patients during a mass-casualty incident or disaster. The course teaches students how to respond to the many types of disaster scenarios they may encounter, including natural disasters, infrastructure failings, fires and radiological events, pandemics, active shooter incidents, and other mass casualty events. AHDR educates participants on the critical actions required to support patient and practitioner safety during disaster response.