WASHINGTON D.C. -- Michael D. Brown, Under Secretary of the U.S. Department of Homeland Security for Emergency Preparedness and Response, announced today the release of the new IS-800 The National Response Plan (NRP), an Introduction. This course introduces emergency management practitioners to the NRP, including the concept of operations upon which the plan is built, the roles and responsibilities of the key players, and the organizational structures used to manage response resources. The NRP provides a framework to further ensure all response elements work together whenever this nation and residents are threatened.