U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 12Chapter IVPart 403 - PART 403—CLASSIFICATION, DECLASSIFICATION, AND SAFEGUARDING OF NATIONAL SECURITY INFORMATION
§ 403.1 - General policies and definitions.
§ 403.2 - Responsibilities.
§ 403.3 - Classification principles and authority.
§ 403.4 - Derivative classification.
§ 403.5 - Declassification and downgrading.
§ 403.6 - Systematic review for declassification.
§ 403.7 - Mandatory review for declassification.
§ 403.8 - Appeals.
§ 403.9 - Fees.
§ 403.10 - Safeguarding.
§ 403.11 - Enforcement and investigation procedures.
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