From the Preface and Transmittal: "Providing the public timely and accurate lifesaving information during major incidents remains our highest priority. The Emergency Support Function (ESF) 15 Standard Operating Procedures (SOP) 2019 edition is our primary guiding document to coordinate outreach and ensure consistent public information through an integrated Federal incident communications system. This document, an update to the 2016 SOP, builds upon the external affairs policy established in Presidential Policy Directive 8, Homeland Security Presidential Directive 5, the National Response Framework, National Incident Management System and Incident Command System. This 2019 SOP has been updated using lessons learned from Hurricane Maria, nation state nuclear threat communication planning and other impacts from the 2017 and 2018 hurricane seasons. This version also includes two new Department of Homeland Security components: Countering Weapons of Mass Destruction (CWMD) Office and the Cybersecurity and Infrastructure Security Agency (CISA)."
Federal Emergency Management Administration: http://www.fema.gov/