What is the difference between the CTBTO Preparatory Commission and the CTBTO?

The CTBTO Preparatory Commission lays the groundwork for the period in the future when the Treaty enters into force and the CTBTO is established. The main task of the Commission is to establish the global Verification Regime so that it will be fully operational once the Treaty enters into force. The main task of the CTBTO will be to ensure international verification of compliance with the CTBT and to provide a forum for consultation and cooperation among States Parties.

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