Who establishes the Defense Readiness Condition (DEFCON) ratings?

The Defense Readiness Condition (DEFCON) ratings are established by the United States Department of Defense, specifically under the authority of the Chairman of the Joint Chiefs of Staff. NORAD (North American Aerospace Defense Command) plays a crucial role in the monitoring and defense of North American airspace and is integral in readiness and alert levels, particularly during heightened tensions or threats. While NORAD does not directly establish DEFCON ratings, it operates within the framework set forth by the Department of Defense and is significantly influenced by DEFCON levels as part of its engagement in national defense protocols.

In contrast, the FBI, NSA, and CIA have distinct roles focused on law enforcement, national security intelligence, and foreign intelligence, respectively. Their functions do not encompass the establishment of military readiness conditions like DEFCON, allowing NORAD's involvement in this context to be more relevant.