Department of Defense
MANUAL
NUMBER 5200.45
April 2, 2013
Incorporating Change 2, Effective September 15, 2020
USD(I&S)
SUBJECT: Instructions for Developing Security Classification Guides
References: See Enclosure 1
1. PURPOSE. This Manual reissues DoD 5200.1-H (Reference (a)) as a DoD Manual in
accordance with the authority in DoD Directive (DoDD) 5143.01 (Reference (b)) and DoD
Instruction (DoDI) 5200.01 (Reference (c)) to provide guidance for the development of security
classification guidance pursuant to section 2.2 of Executive Order (E.O.) 13526 (Reference (d)),
part 2001.15 of title 32, Code of Federal Regulations (CFR) (Reference (e)), and DoD Manual
5200.01 (Reference (f)).
2. APPLICABILITY. This Manual 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 DoD (hereinafter referred to
collectively as the “DoD Components”).
3. DEFINITIONS. See Glossary.
4. RESPONSIBILITIES
a. Under Secretary of Defense for Intelligence and Security (USD(I&S)). The USD(I&S)
shall, in accordance with Reference (c), oversee the DoD Information Security Program, which
includes the development, distribution, maintenance, revision, and cancellation of security
classification guides.
b. Original Classification Authorities (OCAs). OCAs, as required by Reference (f), shall:
(1) Issue and disseminate security classification guidance for each system, plan,
program, project, or mission involving classified information under their jurisdiction.
