Comprehensive Nuclear-Test-Ban Treaty

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Comprehensive Nuclear-Test-Ban Treaty (CTBT)

Participation in the Comprehensive Nuclear-Test-Ban Treaty   Annex 2, signed and ratified   Annex 2, signed but not ratified   Annex 2, non-signatory   Not Annex 2, signed and ratified   Not Annex 2, signed but not ratified   Not Annex 2, non-signatory
Signed	24 September 1996; 27 years ago (1996-09-24)
Location	New York City
Effective	Not in force
Condition	180 days after ratification by all 44 Annex 2 countries Algeria, Argentina, Australia, Austria, Bangladesh, Belgium, Brazil, Bulgaria, Canada, Chile, China, Colombia, Egypt, Finland, France, Germany, Hungary, India, Indonesia, Iran, Israel, Italy, Japan, Mexico, Netherlands, North Korea, Norway, Pakistan, Peru, Poland, Romania, Russia, Slovakia, South Africa, South Korea, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom, United States, Vietnam, Zaire
Signatories	187
Ratifiers	178 (states that need to take further action for the treaty to enter into force: China, Egypt, India, Iran, Israel, North Korea, Pakistan, Russia, United States)
Depositary	Secretary-General of the United Nations
Languages	Arabic, Chinese, English, French, Russian, and Spanish
www.ctbto.org

The Comprehensive Nuclear-Test-Ban Treaty (CTBT) is a multilateral treaty to ban nuclear weapons test explosions and any other nuclear explosions, for both civilian and military purposes, in all environments. It was adopted by the United Nations General Assembly on 10 September 1996, but has not entered into force, as eight specific nations have not ratified the treaty.