Question of the day

How does a State become an accredited observer 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

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

24 February 2010

Australia and the CTBTO to work together to win support for the Treaty. more

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CTBT in the News

2010, the Year for Re-building the Movement for Nuclear Disarmament by Lisa Putkey and Kevin Martin (OpEdNews)

Yes He Can: Obama's First Steps Toward Zero by Elise Connor (Stimson Center)

U.S. Clinton to talk nuclear arms cuts in Moscow next week (RIA Novosti)

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Article XIV Conferences

Find all the documents of the latest conference here.