To help coordinate communication during the response phase of a crisis, the U.S. Federal Emergency Management Agency (FEMA) within the Department of Homeland Security administers the National Response Plan (NRP). This plan is intended to integrate public and private response by providing a common language and outlining a chain-of-command when multiple parties are mobilized. It is based on the premise that incidences should be handled at the lowest organizational level possible. The NRP recognizes the private sector as a key partner in domestic incident management, particularly in the area of critical infrastructure protection and restoration.