Subpart B. Subpart B—Classified Information

• § 17.21 - Classification and declassification authority.
• § 17.22 - Classification of information; limitations.
• § 17.23 - Emergency classification requests.
• § 17.24 - Duration of classification.
• § 17.25 - Identification and markings.
• § 17.26 - Derivative classification.
• § 17.27 - Declassification and downgrading.
• § 17.28 - Automatic declassification.
• § 17.29 - Documents of permanent historical value.
• § 17.30 - Classification challenges.
• § 17.31 - Mandatory review for declassification requests.
• § 17.32 - Notification of classification changes.