National Security Decision Directive 1
NATIONAL SECURITY COUNCIL DIRECTIVES
The following two directive series are hereby established to inform the Departments and Agencies of Presidential actions:
NATIONAL SECURITY DECISION DIRECTIVE (NSDD)
This series shall be used to promulgate Presidential decisions implementing national policy and objectives in all areas involving national security. All decision directives in this series shall be individually identified by number and signed by the President.
NATIONAL SECURITY STUDY DIRECTIVE (NSSD)
This series shall be used to direct that studies be undertaken involving national security policy and objectives.
The Presidential Review Memorandum (PRM) and Presidential Directive (PD) series are hereby discontinued. An NSDD will be issued setting forth the status and disposition of existing PRMs, PDs, and other NSC directives.
REVISED (December 17, 1991)