Question of the day

When did the nuclear weapon States test for the last time?

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Current Treaty Status
Member States182
Total Ratifications153
Annex Ratifications35
Latest State SignatoryTrinidad & Tobago
Latest Ratifying StateCentral African Republic
"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

27 August 2010

The International Day against Nuclear Tests: time to bring the Comprehensive Nuclear-Test-Ban Treaty into forcemore

27 July 2010

EU Council decision - EUR 5 million contribution to strengthen CTBTO verification readinessmore

29 May 2010

CTBTO Executive Secretary Tibor Toth welcomes the adoption of a final document at the 2010 NPT Review Conferencemore

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Highlights

19 August 2010

The first radioactive noble gas measurement system, installed at RN75 in Charlottesville, Virginia, United States, was certified on 19 August 2010.more

16 August 2010

Young people are committed to a world without nuclear tests.more

09 August 2010

Commemorative Ceremony of Atomic Bombings of Hiroshima and Nagasaki held in Vienna. more

06 August 2010

Pacific Islands Forum urges all members to sign and ratify the CTBT.more

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CTBT in the News

World Celebrates International Day Against Nuclear Threats On Aug 29 (Bernama.com)

N.Korea Likely to Conduct Another Nuclear Test in Coming Months (Arirang)

US non-committal on resuming NKorea nuclear talks (AFP)

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Article XIV Conferences

Find all the documents of the latest conference here.