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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 40
Chapter I
Part 11 - PART 11—SECURITY CLASSIFICATION REGULATIONS PURSUANT TO EXECUTIVE ORDER 11652
§ 11.1 - Purpose.
§ 11.2 - Background.
§ 11.3 - Responsibilities.
§ 11.4 - Definitions.
§ 11.5 - Procedures.
§ 11.6 - Access by historical researchers and former Government officials.
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