Article Out Loud – Interoperability During Mass Casualty Incidents

Full article by Charles Guddemi and Catherine Feinman, an Article Out Loud from Domestic Preparedness, April 3, 2024.

In this featured article, the District of Columbia’s Homeland Security and Emergency Management Agency’s statewide interoperability coordinator and the editor of Domestic Preparedness highlight the key takeaways from a 2024 interoperability workshop. During a mass casualty incident, response agencies must be able to communicate in real time. However, lessons learned from incidents have shown that hospitals and other often overlooked “responders” are not always included in interoperability plans.

Listen to what agencies in Washington, DC, are doing to close communication gaps during a mass casualty incident.

Listen on

Charles Guddemi
Charles J. Guddemi

Charles Guddemi is the District of Columbia’s Homeland Security and Emergency Management Agency’s (HSEMA) statewide interoperability coordinator (SWIC). He is responsible for coordinating interoperability and communications projects involving voice, data, and video. He chairs the District’s Interoperable Communications Committee and Cellular Industry/WiFi Provider Working Group. He serves as the secretary for the Statewide Interoperability Executives Council, is a member of the National Council of Statewide Interoperability Coordinators and current co-chair of FEMA’s Region III Regional Emergency Communications Coordinators Working Group. He also participates on several Metropolitan Washington Council of Governments (MWCOG) committees and working groups. He joined HSEMA after a 25-year career with the United States Park Police (USPP). His assignments included working in Washington, D.C., New York Field Office, San Francisco Field Office, and the National Park Service Northeast Regional Headquarters in Philadelphia, Pennsylvania. He achieved the rank of deputy chief serving as the commander of the Services Division.

Catherine L. Feinman

Catherine L. Feinman, M.A., joined Domestic Preparedness in January 2010. She has more than 35 years of publishing experience and currently serves as editor of the Domestic Preparedness Journal,, and The Weekly Brief. She works with writers and other contributors to build and create new content that is relevant to the emergency preparedness, response, and recovery communities. She received a bachelor’s degree in International Business from the University of Maryland, College Park, and a master’s degree in Emergency and Disaster Management from American Military University.



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