This online course is intended as an overview and introduction to public health law in emergency preparedness. It raises questions to consider in the planning and delivery of public health or healthcare services in large scale emergencies, across different jurisdictions. The content for this course was developed in partnership with the Network for Public Health Law Western Region Office at the Sandra Day O’Connor College of Law, Arizona State University. It is part of a series of courses and resources funded by the Robert Wood Johnson Foundation to support public health law training.