1、Department of Defense MANUAL NUMBER 5105.21,Volume 1 October 19,2012 Incorporating Change 2,Effective October 6,2020 USD(I&S)SUBJECT:Sensitive Compartmented Information(SCI)Administrative Security Manual:Administration of Information and Information Systems Security References:See Enclosure 1 1.PURP
2、OSE a.Manual.This Manual is composed of several volumes,each containing its own purpose,and reissues DoD Manual(DoDM)5105.21-M-1(Reference(a).The purpose of the overall Manual,in accordance with the authority in DoD Directive(DoDD)5143.01(Reference(b),is to implement policy established in DoD Instru
3、ction(DoDI)5200.01(Reference(c),and Director of Central Intelligence Directive(DCID)6/1(Reference(d)for the execution and administration of the DoD Sensitive Compartmented Information(SCI)program.It assigns responsibilities and prescribes procedures for the implementation of Director of Central Inte
4、lligence and Director of National Intelligence(DNI)policies for SCI.b.Volume.This Volume addresses administrative procedures for information security for SCI,including transmission and information systems(IS)security.2.APPLICABILITY.This Volume:a.Applies to OSD,the Military Departments,the Office of
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