Central African Republic signs
Comprehensive Nuclear-Test-Ban Treaty

The Central African Republic became the latest signatory of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) on 19 December, bringing the number of States Signatories to a total of 165. To date, 89 States have deposited their instruments of ratification of the CTBT.

The Central African Republic hosts an infrasound station (IS12) and a primary seismic station (PS11), both located at Bangui. These stations form part of the International Monitoring System (IMS) currently being set up under the terms of the Treaty to verify compliance. The IMS consists of a global network of 337 monitoring facilities which record data using four complementary technologies. These technologies – seismic, hydroacoustic, infrasound and radionuclide – can register vibrations from a possible nuclear explosion underground, in the seas and in the air, and can detect radioactive debris released into the atmosphere. The data are transmitted to the International Data Centre (IDC) in Vienna, where they are used to detect, locate and characterize events. These data and IDC products are provided to the States Signatories for their final analysis.

The CTBT prohibits all nuclear explosions in any environment. Drafted at the Conference on Disarmament in Geneva, and adopted by the General Assembly on 10 September 1996, the Treaty was opened for signature on 24 September 1996 at United Nations headquarters in New York.

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The 165 States that have so far signed the treaty are: Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Belarus, Belgium, Belize, Benin, Bolivia, Bosnia and Herzegovina, Brazil, Brunei Darussalam, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Cape Verde, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo, Cook Islands, Costa Rica, Cote d'Ivoire, Croatia, Cyprus, Czech Republic, Democratic Republic of the Congo, Denmark, Djibouti, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Estonia, Ethiopia, Fiji, Finland, France, Gabon, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy See, Honduras, Hungary, Iceland, Indonesia, Iran, Islamic Republic of, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Lao People's Democratic Republic, Latvia, Lesotho, Liberia, Libyan Arab Jamahiriya, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mexico, Micronesia, Federated States of, Monaco, Mongolia, Morocco, Mozambique, Myanmar, Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, Norway, Oman, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Republic of Korea, Republic of Moldova, Romania, Russian Federation, Saint Lucia, Samoa, San Marino, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, South Africa, Spain, Sri Lanka, Suriname, Swaziland, Sweden, Switzerland, Tajikistan, Thailand, the former Yugoslav Republic of Macedonia, Togo, Tunisia, Turkey, Turkmenistan, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States of America, Uruguay, Uzbekistan, Vanuatu, Venezuela, Viet Nam, Yemen, Yugoslavia, Zambia and Zimbabwe.

The 89 States that have deposited their instruments of ratification of the CTBT are: Argentina, Australia, Austria, Azerbaijan, Bangladesh, Belarus, Belgium, Benin, Bolivia, Brazil, Bulgaria, Cambodia, Canada, Chile, Costa Rica, Croatia, Czech Republic, Denmark, Ecuador, El Salvador, Estonia, Fiji, Finland, France, Gabon, Germany, Greece, Grenada, Guyana, Holy See, Hungary, Iceland, Ireland, Italy, Jamaica, Japan, Jordan, Kenya, Kiribati, Latvia, Lao People’s Democratic Republic, Lesotho, Lithuania, Luxembourg, Maldives, Mali, Malta, Mexico, Micronesia (Federated States of), Monaco, Mongolia, Morocco, Namibia, Nauru, Netherlands, New Zealand, Nicaragua, Nigeria, Norway, Panama, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Republic of Korea, Romania, Russian Federation, Saint Lucia, Senegal, Sierra Leone, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Tajikistan, the former Yugoslav Republic of Macedonia, Turkey, Turkmenistan, Uganda, Ukraine, United Arab Emirates, United Kingdom of Great Britain and Northern Ireland, Uruguay and Uzbekistan.

For further information on the CTBTO, please see www.ctbto.org or contact:
Annika Thunborg, Chief, Public Information  
T    +43 1 26030-6375  
E    annika.thunborgping@ctbtopong.org
M    +43 699 1459 6375       
I    www.ctbto.org