Part 3a—National Security Information

1. CFR
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3. Title 18
4. ›
5. Chapter I
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7. Part 3a

Subject Groups

• Access to Classified Materials
  Access to Classified Materials Section 3a.41
• Accountability For Classified Material
  Accountability For Classified Material Section 3a.71
• Classification
  Classification Sections 3a.11–3a.13
• Classification Markings and Special Notations
  Classification Markings and Special Notations Section 3a.31
• Data Index System
  Data Index System Section 3a.91
• Declassification and Downgrading
  Declassification and Downgrading Sections 3a.21–3a.23
• General
  General Sections 3a.1–3a.2
• Security Officers
  Security Officers Section 3a.51
• Storage and Custody of Classified Information
  Storage and Custody of Classified Information Section 3a.61
• Transmittal of Classified Material
  Transmittal of Classified Material Section 3a.81