"This document is intended to help emergency planners prepare public communications prior to and during a radiological emergency; it is designed to be worked into emergency response plans and standard operating procedures. Each radiological emergency is unique; the messages contained in this book need to be adapted for the specific emergency at hand. Based on the safety measures in the U.S. Environmental Protection Agency (EPA) 'Protective Action Guide (PAG) Manual', this document is applicable to all types of radiological emergencies that may necessitate the implementation of a protective action. It complements the planning considerations presented in the 'PAG Manual' and Federal Emergency Management Agency's incident-specific messaging documents 'Improvised Nuclear Device Response and Recovery: Communicating in the Immediate Aftermath and Communicating During and After a Nuclear Power Plant Incident'. The questions and answers in this document represent the best of the work produced through other government emergency radiological communications efforts. This document includes new messages addressing potassium iodide administration and populations that require special consideration, including pregnant and breastfeeding women, children, and individuals with disabilities. Ideally, these messages never will be needed; nevertheless, we have a responsibility to be prepared to empower the public by effectively communicating how people can protect themselves and their families in the event of a radiological or nuclear emergency."