The Full Form of NSCS is National Security Council System.

National security includes the defense of the United States of America, protection of our constitutional system of government, and the advancement of United States interests around the globe. National security also depends on America’s opportunity to prosper in the world economy. The National Security Act of 1947, as amended, established the National Security Council to advise the President with respect to the integration of domestic, foreign, and military policies relating to national security. That remains its purpose. The NSC shall advise and assist me in integrating all aspects of national security policy as it affects the United States – domestic, foreign, military, intelligence, and economics (in conjunction with the National Economic Council (NEC)). The National Security Council system is a process to coordinate executive departments and agencies in the effective development and implementation of those national security policies.

The National Security Council (NSC) shall have as its regular attendees (both statutory and non-statutory) the President, the Vice President, the Secretary of State, the Secretary of the Treasury, the Secretary of Defense, and the Assistant to the President for National Security Affairs. The Director of Central Intelligence and the Chairman of the Joint Chiefs of Staff, as statutory advisors to the NSC, shall also attend NSC meetings. The Chief of Staff to the President and the Assistant to the President for Economic Policy are invited to attend any NSC meeting. The Counsel to the President shall be consulted regarding the agenda of NSC meetings, and shall attend any meeting when, in consultation with the Assistant to the President for National Security Affairs, he deems it appropriate. The Attorney General and the Director of the Office of Management and Budget shall be invited to attend meetings pertaining to their responsibilities. For the Attorney General, this includes both those matters within the Justice Department’s jurisdiction and those matters implicating the Attorney General’s responsibility under 28 U.S.C. 511 to give his advice and opinion on questions of law when required by the President. The heads of other executive departments and agencies, as well as other senior officials, shall be invited to attend meetings of the NSC when appropriate.

The NSC shall meet at my direction. When I am absent from a meeting of the NSC, at my direction the Vice President may preside. The Assistant to the President for National Security Affairs shall be responsible, at my direction and in consultation with the other regular attendees of the NSC, for determining the agenda, ensuring that necessary papers are prepared, and recording NSC actions and Presidential decisions. When international economic issues are on the agenda of the NSC, the Assistant to the President for National Security Affairs and the Assistant to the President for Economic Policy shall perform these tasks in concert.