HSPD-5 directed the Secretary of Homeland Security to develop and administer an NRP to integrate the current family of federal domestic prevention, preparedness, response and recovery plans into a single all-discipline, all-hazards plan in an attempt to unify domestic incident management. The NRP has superseded other emergency response plans (e.g., US Government Interagency Domestic Terrorism Concept of Operations Plan, Federal Radiological Emergency Response Plan, Mass Migration Emergency Plan, and the National Oil and Hazardous Substances Pollution Contingency Plan). In addition to consolidating federal plans, other modifications within the NRP that impact DOD are the establishment of a Homeland Security Operations Center, the establishment of an interagency incident management group, and the creation of a principal federal official who may be appointed to represent the Secretary of Homeland Security at the incident site". (JCS/DoD, Homeland Security, 2005, p. IV-13).