U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 6Chapter IPart 7Subpart B - Subpart B—Classified Information
§ 7.20 - Classification and declassification authority.
§ 7.21 - Classification of information, limitations.
§ 7.22 - Classification pending review.
§ 7.23 - Emergency release of classified information.
§ 7.24 - Duration of classification.
§ 7.25 - Identification and markings.
§ 7.26 - Derivative classification.
§ 7.27 - Declassification and downgrading.
§ 7.28 - Automatic declassification.
§ 7.29 - National Declassification Center.
§ 7.30 - Documents of permanent historical value.
§ 7.31 - Classification challenges.
§ 7.32 - Mandatory declassification review.
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