The Unified Command allows different jurisdictions to manage and direct activities with a single action plan together.
In the Incident Command System, it is authority, in which two or more individuals share the role of commanders of actions, each already have authority in a different agency to which it is responsible. This type of command is used when the simultaneous operation of multiple agencies and jurisdictions is required. A unique command allows agencies with different legal, geographic and functional areas to act effectively without affecting the authority of individual agencies.
Under a Unified Command, all activities are focused on a coordinated plan for an incident, and that plan governs all activities.