The Status of the Comprehensive Test Ban Treaty: Signatories and Ratifiers | Arms Control Association
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Do not sell or share my personal informationDo not sell or share my personal information Allow selection Customize OKPowered by Cookiebot by Usercentrics ResourcesFact Sheets Issue Briefs Multimedia Resources Policy White Papers Research & Reports Treaties Country Profiles + Arms Control TodaySubscribe Archived Issues Submissions & Letters Focus Editorials Interviews Book Reviews Books of Note Advertise With Us Permissions & Re-Print Requests + Stay InformedArms Control NOW Take Action for a Safer World Inside the Arms Control Association Nuclear Disarmament Monitor P4+1 and Iran Nuclear Deal Alert Chemical Weapons News Roundup North Korea Denuclearization Digest Project for the CTBT + AboutContact Us Our Staff and Board Experts Available ACA In The News Press Room Events & Remarks 50 Years of Accomplishments Special Projects Careers Internships + Join Donate Skip to main content Register for Email Updates Search Register for Email Updates Login Search ResourcesFact Sheets Issue Briefs Multimedia Resources Policy White Papers Research & Reports Treaties Country Profiles Arms Control TodaySubscribe Archived Issues Submissions & Letters Focus Editorials Interviews Book Reviews Books of Note Advertise With Us Permissions & Re-Print Requests Stay InformedArms Control NOW Take Action for a Safer World Inside the Arms Control Association Nuclear Disarmament Monitor P4+1 and Iran Nuclear Deal Alert Chemical Weapons News Roundup North Korea Denuclearization Digest Project for the CTBT AboutContact Us Our Staff and Board Experts Available ACA In The News Press Room Events & Remarks 50 Years of Accomplishments Special Projects Careers Internships Join Donate Fact Sheets Issue Briefs Policy White Papers Research & Reports Treaties Country Resources Login/Logout Username:* Password:* "No one can solve this problem alone, but together we can change things for the better." – Setsuko Thurlow Hiroshima Survivor June 6, 2016 The Status of the Comprehensive Test Ban Treaty: Signatories and Ratifiers Latest ACA Resources EU / NATO IAEA Board Censures Iran Again(November 21, 2022) NATO, Russia Conduct Simultaneous Nuclear Exercises(November 1, 2022) Nuclear Testing U.S., Russia Discuss Threats of Nuclear Use (November 17, 2022) U.S., Marshall Islands Grapple With Nuclear Legacy (November 1, 2022) Treaties and Agreements The Iranian Nuclear Crisis: Time for Plan B (December 1, 2022) Russia Delays Meeting on New START (December 1, 2022) Fact Sheets & Briefs Last Reviewed: August 2022Contact: Daryl Kimball, Executive Director, (202) 463-8270 x107 Despite nearly 20 years of global efforts to promote the entry into force of the Comprehensive Test Ban Treaty (CTBT), the treaty’s enactment appears a long way off. President George H. W. Bush signed into law the unilateral declaration to forego full-scale nuclear weapons testing on October 2, 1992. The United States signed the CTBT on September 24, 1996, the day it opened for signature, but the Senate dealt a severe blow to the near-term prospects for U.S. participation when it refused to provide its advice and consent. On October 13, 1999. President Obama stated in February 2009 that he intended to pursue Senate advice and consent to ratification of the treaty "immediately and aggressively," but he ultimately did not do so. The CTBT will formally enter into force after 44 designated “nuclear-capable states” (as listed in Annex 2 of the treaty) have deposited their instruments of ratification with the UN secretary-general. To date, 186 states have signed and 174 have ratified the treaty. Of the 44 specified countries, India, Pakistan, and North Korea still have not signed, and only 36 have ratified the treaty. For more information on the CTBT, see Comprehensive Test Ban Treaty at a Glance. The following chart identifies the treaty’s signatories and ratifiers. States whose ratification is required for the treaty to take effect are shaded and marked with an asterisk (*). Total Signatories: 186Total Ratifiers: 174 Annex 2 Ratifications (out of 44): 36 Country Signature Ratification Afghanistan 9/24/03 9/24/03 Albania 9/27/96 4/23/03 Algeria* 10/15/96 7/11/03 Andorra 9/24/96 7/12/06 Angola 9/27/96 3/20/15 Antigua and Barbuda 4/16/97 1/11/06 Argentina* 9/24/96 12/4/98 Armenia 10/1/96 7/12/06 Australia* 9/24/96 7/9/98 Austria* 9/24/96 3/13/98 Azerbaijan 7/28/97 2/2/99 Bahamas 2/4/05 11/30/07 Bahrain 9/24/96 4/12/04 Bangladesh* 10/24/96 3/8/00 Barbados 1/14/08 1/14/08 Belarus 9/24/96 9/13/00 Belgium* 9/24/96 6/29/99 Belize 11/14/01 3/26/04 Benin 9/27/96 3/6/01 Buhtan Bolivia 9/24/96 10/4/99 Bosnia and Herzegovina 9/24/96 10/26/06 Botswana 9/16/02 10/28/02 Brazil* 9/24/96 7/24/98 Brunei Darussalam 1/22/97 1/10/13 Bulgaria* 9/24/96 9/29/99 Burkina Faso 9/27/96 4/17/02 Burundi 9/24/96 9/24/08 Cambodia 9/26/96 11/10/00 Cameroon 11/16/01 2/6/06 Canada* 9/24/96 12/18/98 Cape Verde 10/1/96 3/1/06 Central African Republic 12/19/01 5/26/10 Chad 10/8/96 2/8/13 Chile* 9/24/96 7/12/00 China* 9/24/96 Colombia* 9/24/96 1/29/08 Comoros 12/12/96 Congo 2/11/97 9/2/14 Cook Islands 12/5/97 9/6/05 Costa Rica 9/24/96 9/25/01 Côte d'Ivoire 9/25/96 3/11/03 Croatia 9/24/96 3/2/01 Cuba Cyprus 9/24/96 7/18/03 Czech Republic 11/12/96 9/11/97 Dem. Republic of Congo* 10/4/96 9/28/04 Denmark 9/24/96 12/21/98 Djibouti 10/21/96 7/15/05 Dominica Dominican Republic 10/3/96 9/4/07 Ecuador 9/24/96 11/12/01 Egypt* 10/14/96 El Salvador 9/24/96 9/11/98 Equatorial Guinea 10/9/96 Eritrea 11/11/03 11/11/03 Estonia 11/20/96 8/13/99 Ethiopia 9/25/96 8/8/06 Fiji 9/24/96 10/10/96 Finland* 9/24/96 1/15/99 France* 9/24/96 4/6/98 Gabon 10/7/96 9/20/00 Gambia 4/9/03 Georgia 9/24/96 9/27/02 Germany* 9/24/96 8/20/98 Ghana 10/3/96 06/14/11 Greece 9/24/96 4/21/99 Grenada 10/10/96 8/19/98 Guatemala 9/20/99 1/12/12 Guinea 10/3/96 09/20/11 Guinea-Bissau 4/11/97 09/30/13 Guyana 9/7/00 3/7/01 Haiti 9/24/96 12/1/05 Holy See 9/24/96 7/18/01 Honduras 9/25/96 10/30/03 Hungary* 9/25/96 7/13/99 Iceland 9/24/96 6/26/00 India* Indonesia* 9/24/96 2/6/12 Iran* 9/24/96 Iraq 8/19/08 09/26/13 Ireland 9/24/96 7/15/99 Israel* 9/25/96 Italy* 9/24/96 2/1/99 Jamaica 11/11/96 11/13/01 Japan* 9/24/96 7/8/97 Jordan 9/26/96 8/25/98 Kazakhstan 9/30/96 5/14/02 Kenya 11/14/96 11/30/00 Kiribati 9/7/00 9/7/00 Kuwait 9/24/96 5/6/03 Kyrgyzstan 10/8/96 10/02/03 Laos 7/30/97 10/5/00 L… truncated (3,492 more characters in archive)