Department of Defense MANUAL

1 Department of Defense MANUAL NUMBER April 2, 2013 Incorporating Change 2, Effective September 15, 2020 USD(I&S) SUBJECT: Instructions for Developing Security Classification Guides References: See Enclosure 1 This MANUAL reissues DoD (Reference (a)) as a DoD MANUAL inaccordance with the authority in DoD Directive (DoDD) (Reference (b)) and DoDInstruction (DoDI) (Reference (c)) to provide guidance for the development of securityclassification guidance pursuant to section of Executive Order ( ) 13526 (Reference (d)),part of title 32, Code of Federal Regulations (CFR) (Reference (e)), and DoD (Reference (f)). This MANUAL applies to OSD, the Military Departments, the Office of theChairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the Officeof the Inspector General of the Department of Defense , the Defense Agencies, the DoD FieldActivities, and all other organizational entities within the DoD (hereinafter referred tocollectively as the DoD Components ).

2 See 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. DoDM , April 2, 2013 Change 2, 09/15/2020 2 (2)Review security classification guidance issued under their authority once every5 years to ensure currency and accuracy, or sooner when necessitated by significant changes in policy or in the system, plan, program, project, or mission, and update the guides as required.

3 (3) Revise, whenever necessary for effective derivative classification, the securityclassification guides issued under their authority. (4) Provide copies of any security classification guides issued under their authority asrequired by Enclosure 6 of Volume 1of Reference (f). (5)Cancel security classification guides when all information the guide specified asclassified has been declassified, or when a new classification guide incorporates the classified information covered by the old guide and there is no reasonable likelihood that any information not incorporated by the new guide shall be the subject of derivative classification. (6)Coordinate, pursuant to part 1045 of title 10, CFR (Reference (g)), with theDepartment of Energy (DOE), Office of Classification, through the Deputy Assistant Secretary of Defense for Nuclear Matters (DASD(NM)), whenever they develop or revise security classification guides with Restricted Data (RD) or Formerly Restricted Data (FRD) information.

4 See Enclosure Cleared for public release. This MANUAL is available on the DirectivesDivision Website at OF CHANGE 2. This administrative change updates:a. The title of the Under Secretary of Defense for Intelligence to the Under Secretary ofDefense for Intelligence and Security in accordance with Public Law 116-92 (Reference (h)). b. Additional organizational changes reflecting direction in statute or Secretary and DeputySecretary of Defense direction. DoDM , April 2, 2013 Change 2, 09/15/2020 3 DATE. This MANUAL is effective April 2, G. Vickers Under Secretary of Defense for Intelligence Enclosures Specific Types of Format for a Security Classification GuideGlossary DoDM , April 2, 2013 Change 2, 09/15/2020 CONTENTS 4 TABLE OF CONTENTS ENCLOSURE 1: REFERENCES.

5 7 ENCLOSURE 2: PROCEDURES ..8 INTRODUCTION ..8 CLASSIFICATION AND DECLASSIFICATION ..9 Classification Decisions ..9 When to Declassify ..11 Exemptions ..12 PLAN OF ACTION FOR WRITING CLASSIFICATION GUIDES ..12 Step 1 Consider Related Current Guidance ..12 Step 2 Determine the State-of-the-Art Status ..13 Step 3 Identify National Advantage ..13 Step 4 Make Initial Classification Determination ..14 Step 5 Identify Specific Items of Information That Require Classification ..14 Step 6 Determine the Duration of Classification ..15 Step 7 Write the Guide ..16 APPENDIXES 1: ORIGINAL CLASSIFICATION PROCESS ..19 2: CLASSIFICATION FACTORS ..20 3: CLASSIFYING DETAILS ..23 4: SPECIFIC ITEMS OF INFORMATION TO CONSIDER.

6 28 ENCLOSURE 3: CLASSIFYING SPECIFIC TYPES OF INFORMATION ..31 CLASSIFYING HARDWARE ITEMS ..31 Basic Considerations ..31 User Considerations ..32 CLASSIFYING MILITARY OPERATIONS INFORMATION ..32 General ..32 Military Operations Classification Considerations ..32 CLASSIFYING INTELLIGENCE INFORMATION ..33 Intelligence Classification Considerations ..33 Intelligence Declassification Considerations ..37 Classification Guide Illustrations ..37 CLASSIFYING FOREIGN RELATIONS INFORMATION ..38 General ..38 Foreign Relations Classification Considerations ..38 Classification Guide Illustrations ..40 DoDM , April 2, 2013 Change 2, 09/15/2020 CONTENTS 5 ENCLOSURE 4: RECOMMENDED FORMAT FOR A SECURITY CLASSIFICATION GUIDE.

7 42 INTRODUCTION ..42 COVER CONTENT ..43 APPENDIX FORMAT VARIATIONS ..51 GLOSSARY ..52 PART I: ABBREVIATIONS AND ACRONYMS ..52 PART II: DEFINITIONS ..53 TABLES 1. Performance and Capability Related Data ..28 2. Specifications Related Data (Detailed, Basic) ..29 3. Vulnerability Related Data ..29 4. Procurement, Production, and Logistics Related Data ..29 5. Operations Related Data ..30 6. Testing Related Data ..30 7. Examples of Information Related to Military Operations ..33 8. HUMINT Classification Guidance Example ..38 9. Example of Classifying Foreign Government Information Involving Foreign Affairs ..41 10. Example of Classifying Foreign Government Information with Military Implications.

8 4111. Example of Use of Remarks Column ..47 12. Example of Specifications ..48 13. Example Showing Classified Administrative 14. Example Showing Hardware Classification ..50 FIGURES 1. Original Classification Process Flow Chart ..19 2. Classification Factors Flow Chart ..21 3. Security Classification Guide Cover Page Format ..43 4. Sample Section 1 General Instructions ..44 5. Sample Section 2 Overall Effort ..46 6. Sample Section 3 Performance and Capabilities ..46 7. Sample Section 4 Specifications ..48 8. Sample Section 5 Critical Elements ..48 9. Sample Section 6 Vulnerabilities and Weaknesses ..49 10. Sample Section 7 Administrative Data ..49 11. Sample Section 8 Hardware.

9 50 12. Format Variation 1 ..51 DoDM , April 2, 2013 Change 2, 09/15/2020 CONTENTS 6 13. Format Variation 2 ..51 14. Format Variation 3 ..51 15. Format Variation 4 ..51 DoDM , April 2, 2013 Change 2, 09/15/2020 ENCLOSURE 1 7 ENCLOSURE 1 REFERENCES (a)DoD , Department of Defense Handbook for Writing Security ClassificationGuidance, November 1999 (hereby cancelled)(b)DoD Directive , Under Secretary of Defense for Intelligence and Security(USD(I&S)), October 24, 2014, as amended(c)DoD Instruction , DoD Information Security Program and Protection of SensitiveCompartmented Information (SCI), April 21, 2016, as amended(d)Executive Order 13526, Classified National Security Information, December 29, 2009(e)Part 2001 of title 32, Code of Federal Regulations(f)DoD MANUAL , DoD Information Security Program, February 24, 2012, asamended(g)

10 Part 1045 of title 10, Code of Federal Regulations(h)Public Law 116-92, National Defense Authorization Act for Fiscal Year 2020, December 20, 2019(i)DoD Instruction , Clearance of DoD Information for Public Release, January 25, 2019(j)DoD Instruction , Online Information Management and Electronic Messaging, January 2, 2019(k)Sections 2014 and 2162, et seq., of title 42, United States Code (also known as TheAtomic Energy Act of 1954, as amended )(l)DoD Instruction , Access to and Dissemination of Restricted Data and FormerlyRestricted Data, June 3, 2011, as amended(m)DoD Instruction , Distribution Statements on Technical Documents, August 23, 2012, as amended(n) National Security Decision Directive 189, National Policy on the Transfer of Scientific,Technical and Engineering Information, September 21, 1985(o) Under Secretary of Defense for Acquisition, Technology, and Logistics Memorandum, Fundamental Research, May 24, 20101(p)DoD Instruction , Critical Program Information (CPI)