Question of the day

Can any State request International Monitoring System (IMS) data on any other State?

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Current Treaty Status
Member States182
Total Ratifications151
Annex Ratifications35
Latest State SignatoryTrinidad & Tobago
Latest Ratifying StateMarshall Islands
"1945-1998"

by Isao HASHIMOTO
A multimedia artist's take on worldwide nuclear testing from 1945-1998.

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Press Releases and Media Advisories

28 February 2010

CTBTO contributes to tsunami warning following the earthquake in Chilemore

23 February 2010

CTBTO launches Newsroom for journalistsmore

17 February 2010

Stephen Smith, Australia's Foreign Minister, will encourage other nations in the Asia Pacific to sign up to the Treaty and to ratify it.more

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Highlights

15 March 2010

“The CTBT must come into force as soon as humanly possible,” Gareth Evans says in Vienna.more

12 March 2010

Member States encouraged to promote the CTBT at global and regional meetings more

12 March 2010

Video Interview with Professor Gareth Evans on Eliminating Nuclear Threats. Watch it on CTBTO's YouTube Channel.more

05 March 2010

CTBTO contributes to tsunami warning following the earthquake in Chile.more

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CTBT in the News

Nuclear Pre-Game Huddle by Joe Cirincione (Huffington Post)

The Path to Nuclear Security by David Shorr (Stanley Foundation)

U.S. and Russia make 'good progress' on nuclear arms deal (BBC)

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Article XIV Conferences

Find all the documents of the latest conference here.