This Manual is composed of several volumes, each containing its own purpose. The purpose of the overall Manual, as authorized by DoD Directive (DoDD) 5143.01 (Reference (a)) and DoD Instruction (DoDI) 5200.01 (Reference (b)), is to reissue DoD 5200.1-R (Reference (c)) as a DoD Manual (DoDM) to implement policy, assign responsibilities, and provide procedures for the designation, marking, protection, and dissemination of controlled unclassified information (CUI) and classified information, including information categorized as collateral, sensitive compartmented information (SCI), and Special Access Program (SAP). This guidance is developed in accordance with Reference (b), Executive Order (E.O.) 13526, E.O. 13556, and parts 2001 and 2002 of title 32, Code of Federal Regulations (References (d), (e), and (f)). This combined guidance is known as the DoD Information Security Program.