154.1—Purpose.

(a) To establish policies and procedures to ensure that acceptance and retention of personnel in the Armed Forces, acceptance and retention of civilian employees in the Department of Defense (DoD), and granting members of the Armed Forces, DoD civilian employees, DoD contractors, and other affiliated persons access to classified information are clearly consistent with the interests of national security.
(b) This part: (1) Establishes DoD personnel security policies and procedures;
(2) Sets forth the standards, criteria and guidelines upon which personnel security determinations shall be based;
(3) Prescribes the kinds and scopes of personnel security investigations required;
(4) Details the evaluation and adverse action procedures by which personnel security determinations shall be made; and
(5) Assigns overall program management responsibilities.