An office of emergency management (OEM) (also known as a office of emergency services (OES), emergency management office (EMO), or emergency management agency (EMA)) is a local, municipal, tribal, state, federal/national, or international organization responsible for: planning for, responding to, and dealing with recovery efforts related to natural, manmade, technological, or otherwise hazardous disasters by planning and implementing large scale emergency response plans/procedures, coordinating emergency assets during a disaster, and providing logistical, administrative and financial support to a disaster response effort. [1][2][3][4]
The U.S. Department of Health and Human Services' Public Health Emergency Preparedness (replaced by the Office of the Assistant Secretary for Preparedness and Response)
Tierney, Kathleen J.; Lindell, Michael K.; Perry, Ronald W. (2001). Facing the Unexpected: Disaster Preparedness and Response in the United States. Washington, D.C.: Joseph Henry Press. ISBN0-309-06999-8.
Waugh, William L. (2000). Living with Hazards, Dealing with Disasters: an Introduction to Emergency Management. Armonk, NY: ME Sharpe. ISBN978-0-76563-163-3.