Alternate Title: NSDD 3: Crisis Management
This directive states that "A national security matter for which the Presidential decisions and implementing instructions are required more rapidly than routine interdepartment NSC staff support provides may be considered in the context of crisis management". It also directs that "Crisis management shall be the responsibility of a Special Situation Group (SSG) chaired by the Vice President," and explains the role of this group in further detail.
National Security Decision Directive 3; NSDD 3
Federation of American Scientists: http://www.fas.org/