This Manual is composed of three volumes, each containing its own purpose. The purpose of the overall Manual, as authorized by DoD Directive (DoDD) 5143.01 and DoD Instruction (DoDI) 5200.01, is to reissue DoD 5200.1-R as a DoD Manual 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 and E.O. 13556, and part 2001 of title 32, Code of Federal Regulations. This combined guidance is known as the DoD Information Security Program. This Volume: (1) Describes the DoD Information Security Program. (2) Provides guidance for classification and declassification of DoD information that requires protection in the interest of the national security. (3) Cancels Reference (c) and DoD O-5200.1-I (Reference (g)). (4) Incorporates and cancels Directive-Type Memorandums 04-010 (Reference (h)) and 11-004. This Volume: a. Applies to OSD, the Military Departments, the Office of the Chairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the Office of the Inspector General of the Department of Defense, the Defense Agencies, the DoD Field Activities, and all other organizational entities within the Department of Defense (hereinafter referred to collectively as the "DoD Components"). b. Does NOT alter existing authorities and responsibilities of the Director of National Intelligence (DNI) or of the heads of elements of the Intelligence Community pursuant to policies issued by the DNI. Consistent with Reference (b), SCI shall be safeguarded in accordance with the policies and procedures issued by the DNI, as implemented by DoD 5105.21-M-1 and other applicable guidance.