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Index/Topics/Executive Order 13526 and National Security Classification

Executive Order 13526 and National Security Classification

Executive Order 13526 is the current governing order for classifying, safeguarding, and declassifying national security information. It defines categories of information that may be classified and sets standards for original classification authority, declassification timelines, and special access programs.

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Feb 7, 2026

What was the executive order that was signed to keep top secret government programs classified in interest of national security and what aspect of Apollo program was national security

, signed December 29, 2009, is the current governing order that prescribes how the executive branch classifies, safeguards, and declassifies national security information and therefore underpins the l...