EN

CTBT

The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO Preparatory Commission) is an international organization established by the States Signatories to the Treaty on 19 November 1996. It carries out the necessary preparations for the effective implementation of the Treaty.

In order to monitor compliance with the Comprehensive Nuclear-Test-Ban Treaty, a global verification regime is being established. The verification regime consists of the following elements:

  • An International Monitoring System (IMS)
  • Consultation and clarification process
  • On-Site inspections
  • Confidence-building measures


The Preparatory Commission has two subsidiary bodies: Working Group A (WG A) on administrative and budgetary matters and Working Group B (WG B) on verification issues, as well as an Advisory Group on financial, budgetary and associated administrative issues. The Working Groups make proposals and recommendations for consideration and adoption by the Preparatory Commission at its plenary sessions.
The Picture on the right shows the Meeting Room from WG B at the VIC.