Department of Defense
INSTRUCTION
NUMBER 5210.45
November 14, 2008
Certified Current Through November 14, 2015
USD(I)
SUBJECT: Personnel Security Policies and Procedures for Sensitive Cryptologic Information in
the National Security Agency/Central Security Service
References: See Enclosure 1
1. PURPOSE. This Instruction:
a. Reissues DoD Directive (DoDD) 5210.45 (Reference (a)) as a DoD Instruction (DoDI) in
accordance with the guidance in DoDI 5025.01 (Reference (b)) and updates policies and
responsibilities under the authority in DoDD 5143.01 (Reference (c)).
b. Prescribes the personnel security policies and procedures for the protection of sensitive
cryptologic information at the National Security Agency (NSA)/Central Security Service (CSS)
in accordance with Chapter 23 of title 50, U.S. Code (Reference (d)).
2. APPLICABILITY. This Instruction applies to:
a. The Office of the Secretary of Defense, the Military Departments (including the Coast
Guard at all times, including when it is a Service in the Department of Homeland Security in
agreement with that Department), 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 (hereafter referred to collectively as the “DoD Components”).
b. All persons employed by, detailed, or assigned to the NSA/CSS, and to all other persons
under the security cognizance of the Director, NSA/Chief, CSS, (DIRNSA/CHCSS) for initial or
continued access to sensitive cryptologic information.
3. DEFINITIONS. See Glossary.
