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    4. Secretariat

      The Secretariat, one of the main organs of the UN, is organized along departmental lines, with each department or office having a distinct area of action and responsibility. Offices and departments coordinate with each other to ensure cohesion as they carry out the day to day work of the Organization in offices and duty stations around the world.  At the head of the United Nations Secretariat is the Secretary-General.

      A view of the Secretariat Building, with Members States’ flags flying in the foreground, at United Nations headquarters in New York.

      Secretary-General

      The Secretary-General is the chief administrative officer and head of the Secretariat.

      Offices and Departments at Headquarters in New York

      Executive Office of the Secretary-General
      Office of Internal Oversight Services
      Office of Legal Affairs
      Department of Political and Peacebuilding Affairs
      Office for Disarmament Affairs
      • Weapons of Mass Destruction Branch
      • Conventional Arms Branch
      • Information and Outreach Branch
      • Regional Disarmament Branch
      • Conference on Disarmament Secretariat and Conference Support Branch
      Department of Peace Operations
      Department of Operational Support
      Office for the Coordination of Humanitarian Affairs
      Office of Counter-Terrorism (OCT)
      Department of Economic and Social Affairs
      Department for General Assembly and Conference Management
      Department of Global Communications
      Department of Safety and Security
      • Field Support Service
      • Division of Regional Operations
      • Division of Headquarters Security and Safety Services
      Department of Management Strategy, Policy and Compliance
      Internal Justice Bodies
      Other Offices
      Special Advisers, Representatives and Envoys

      Offices Outside the Main Headquarters

      Geneva
      Nairobi
      Vienna

      UN Regional Commissions

      Bangkok
      Beirut
      Addis Ababa
      Geneva
      Santiago

      See also UN System chart

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