Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization

Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization
	The Commission's headquarters are located at the Vienna International Centre.
Abbreviation	CTBTO Preparatory Commission
Formation	19 November 1996
Founded at	United Nations Headquarters, New York City
Type	Intergovernmental
Purpose	Prepare for the entry into force of the Comprehensive Nuclear-Test-Ban Treaty.
Headquarters	Vienna International Centre ; Vienna, Austria
Coordinates	48°14′05″N 16°25′01″E / 48.234722°N 16.416944°E
Fields	Nuclear disarmament
Membership (2017)	186 Member States
Executive Secretary	Robert Floyd
Budget (2018)	$128.1 million
Staff (2018)	278
Website	ctbto.org

The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, or CTBTO Preparatory Commission, is an international organization based in Vienna, Austria, that is tasked with building up the verification regime of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). The organization was established by the States Signatories to the Comprehensive Nuclear-Test-Ban Treaty (CTBT) in 1996.

Its main purpose is twofold: to promote the entry into force of the CTBT, and to establish a global verification regime in preparation for the Treaty's entry into force.^[3]

As the CTBTO Preparatory Commission is an interim organization, it will be dissolved once the CTBT enters into force and will be replaced by the CTBTO, with all its assets being transferred to the CTBTO. This change will occur at the close of the first Conference of States Parties of the CTBT, which will take place when the Treaty has entered into force. For the Treaty to enter into force, the following states need to ratify the CTBT: China, North Korea, Egypt, India, Iran, Israel, Pakistan, Russia, and the United States. Entry into force will occur 180 days after these states ratify the Treaty.^[3]^[4]

^ "Status of Signature and Ratification". Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization. 25 September 2018. Retrieved 29 January 2019.
^ ^a ^b Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (2018). Annual Report 2018 (PDF) (Report). Provisional Technical Secretariat of the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization. Archived from the original (PDF) on 7 February 2021. Retrieved 28 January 2021.
^ ^a ^b Cite error: The named reference Background was invoked but never defined (see the help page).
^ "Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO Preparatory Commission)". Nuclear Threat Initiative. 25 September 2017. Retrieved 29 January 2019.

[Member_States-1] "Status of Signature and Ratification". Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization. 25 September 2018. Retrieved 29 January 2019.

[2018_Report-2] Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (2018). Annual Report 2018 (PDF) (Report). Provisional Technical Secretariat of the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization. Archived from the original (PDF) on 7 February 2021. Retrieved 28 January 2021.

[Background-3] Cite error: The named reference Background was invoked but never defined (see the help page).

[NTI-4] "Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO Preparatory Commission)". Nuclear Threat Initiative. 25 September 2017. Retrieved 29 January 2019.

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