CFR›Title 32›Subtitle A›Chapter I›Part 156 ContainsSections 156.1–156.7CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 156—DEPARTMENT OF DEFENSE PERSONNEL SECURITY PROGRAM (PSP) Sections 156.1 § 156.1 Purpose. 156.2 § 156.2 Applicability. 156.3 § 156.3 Policy. 156.4 § 156.4 Responsibilities. 156.5 § 156.5 National security positions. 156.6 § 156.6 Common access card (CAC) investigation and adjudication. 156.7 § 156.7 Definitions. AuthorityE.O. 12968, as amended; E.O. 10450, as amended; E.O. 10865, as amended; E.O. 13526; E.O. 12829, as amended; E.O. 13467; E.O. 13488; E.O. 12333, as amended; 5 U.S.C. 301 and 7532; section 1072 of Pub. L. 110-181, as amended; 15 U.S.C. 278g-3; 40 U.S.C. 11331; 10 U.S.C. 1564; 50 U.S.C. 3343; 5 CFR parts 731, 731.101, 732, and 736; and HSPD-12.Source79 FR 18163, Apr. 1, 2014, unless otherwise noted. Previous 155 Part 155—Defense Industrial Personnel Security Clearance Program Next 157 Part 157—DoD Investigative and Adjudicative Guidance for Issuing the Common Access Card (CAC)