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Concept

The formal U.S. government system for designating and controlling access to national security information based on three sensitivity levels (Confidential, Secret, Top Secret) and compartmented access restrictions, governed by Executive Order 13526 (2009).

O sistema formal do governo dos EUA para designar e controlar o acesso a informações de segurança nacional com base em três níveis de sensibilidade (Confidencial, Secreto, Secretíssimo) e restrições de acesso compartimentado, regido pela Ordem Executiva 13526 (2009).

Enrichment

• Classified information in the United States
  Wikipedia▎ high· 2026-05-14
  • Three classification levels: Confidential, Secret, Top Secret
  • Sensitive Compartmented Information (SCI) for intelligence sources/methods
  • Special Access Programs (SAP) restrict access regardless of clearance level
  • Automatic declassification after 25 years with exemptions
  • Approximately 1.25 million individuals held Top Secret clearance as of 2019
• Executive Order 13526 - Classified National Security Information
  National Archives▎ high· 2026-05-14
  • Executive Order 13526 issued December 29, 2009 by President Obama
  • Establishes uniform system for classifying, safeguarding, declassifying national security information
  • Eight protected categories including military operations, intelligence, WMD development
  • Original classification authority delegated only to minimum required officials
  • Mandatory annual training required for classification authorities
• 5 FAM 480 - Classifying and Declassifying National Security Information
  U.S. Department of State▎ high· 2026-05-14
  • Standard classification duration: 10 years; extended classification up to 25 years
  • All classified documents require declassification date or event
  • Interagency Security Classification Appeals Panel reviews classification challenges
  • Eight classification categories defined by Executive Order