What is a NSDD - National Security Decision Directive

UNCLASSIFIED February 25, 2026

NSDD

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) The Presidential Review Memorandum (PRM) and Presidential Directive (PD) are hereby discontinued.

http://www.fas.org/irp/offdocs/nsdd/nsdd-001.htm