1、Department of Defense INSTRUCTION NUMBER 5210.83 July 12,2012 Incorporating Change 2,Effective October 2,2020 USD(I&S)SUBJECT:DoD Unclassified Controlled Nuclear Information(UCNI)References:See Enclosure 1 1.PURPOSE.This Instruction:a.Reissues DoD Directive(DoDD)5210.83(Reference(a)as a DoD Instruct
2、ion(DoDI)in accordance with the authority in DoDD 5143.01(Reference(b).b.Updates policies,assigns responsibilities and prescribes procedures for the implementation of section 128 of title 10,United States Code(U.S.C.)(Reference(c),which is the statutory basis for controlling unclassified information
3、 on the physical protection of DoD special nuclear material(SNM),SNM equipment,and SNM facilities.Such information is referred to as DoD UCNI,to distinguish it from a similar Department of Energy(DOE)program.c.Identifies the authority to be used for denying disclosure of DoD UCNI pursuant to section
4、 552 of title 5,U.S.C.(also known and hereinafter referred to as“The Freedom of Information Act”(FOIA)(Reference(d).d.Supplements security classification guidance contained in DoDI 5210.67(Reference(e),DOE classification guide CG-SS-4(Reference(f),and DoD/DOE joint classification guides by establish
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