Although most health care providers will go through their careers without experiencing a major disaster in their local communities, if one does occur, it can be life and career altering. The American Academy of Pediatrics has been in the forefront of providing education and advocacy on the critical importance of disaster preparedness. From experiences over the past decade, new evidence and analysis have broadened our understanding that the concept of preparedness is also applicable to addressing the unique professional liability risks that can occur when caring for patients and families during a disaster. Concepts explored in this technical report will help to inform pediatric health care providers, advocates, and policy makers about the complexities of how providers are currently protected, with a focus on areas of unappreciated liability. The timeliness of this technical report is emphasized by the fact that during the time of its development (ie, late summer and early fall of 2017), the United States went through an extraordinary period of multiple, successive, and overlapping disasters within a concentrated period of time of both natural and man-made causes. In a companion policy statement (www.pediatrics.org/cgi/doi/10.1542/peds.2018-3892), recommendations are offered on how individuals, institutions, and governments can work together to strengthen the system of liability protections during disasters so that appropriate and timely care can be delivered with minimal fear of legal reprisal or confusion.Drs Santucci and Anderson substantially contributed to the conception and design of the policy statement and technical report, analysis and interpretation of information and references, writing of specific portions of the manuscripts, critical review, and revisions; Dr McDonnell substantially contributed to refining the conception and design of the policy statement and technical report, analysis and interpretation of information, critical review, and revisions; Dr Altman was responsible for the original ideas, conception, and design of the policy statement and technical report, acquisition and analysis of information and references, design of articles, outline of topics, draft of both manuscripts and writing of specific portions, compilation of other authors' contributions, editing, critical review and revisions, and response