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"I actually have a pretty good collection of Arms Control Today, which I have read throughout my career. It's one of the few really serious publications on arms control issues."
– Gary Samore
Former White House Coordinator for Arms Control and WMD Terrorism
The CTB Treaty: Signatories and Ratifiers
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The Comprehensive Test Ban (CTB) Treaty was opened for signature at the United Nations on September 24, 1996. On that day, 71 countries, including all five of the declared nuclear-weapon states, signed the treaty. As of October 31, 1998, 151 states have signed and 21 have ratified the treaty.

The CTB Treaty will formally enter into force 180 days after 44 designated states have deposited their instruments of ratification with the secretary-general of the United Nations. These 44 states include the five declared nuclear-weapon states, India, Israel, Pakistan and 36 other states that are participating members of the Conference on Disarmament and recognized by the International Atomic Energy Agency as possessing nuclear power and/or research reactors.

Of the 44 states that must deposit instruments of ratification for formal entry into force, 41 (identified in bold in the roster below) have signed the treaty. The other three states are India, Pakistan (both of which have indicated they will sign by September 1999) and North Korea. The list below identifies the states that have signed and ratified (ratifiers are identified in italics) the CTB Treaty as of October 31, 1998.

Country Signature
Albania 9/27/96
Algeria 10/15/96
Andorra 9/24/96
Angola 9/27/96
Antigua and Barbuda 4/16/97
Argentina 9/24/96
Armenia 10/1/96
Australia 9/24/96

(Ratified 7/9/98)

Austria 9/24/96

(Ratified 3/13/98)

Azerbaijan 7/28/97
Bahrain 9/24/96
Bangladesh 10/24/96
Belarus 9/24/96
Belgium 9/24/96
Benin 9/27/96
Bolivia 9/24/96
Country Signature
Bosnia and Herzegovina 9/24/96
Brazil 9/24/96

(Ratified 7/24/98)

Brunei Darussalem 1/22/97
Bulgaria 9/24/96
Burkina Faso 9/27/96
Burundi 9/24/96
Cambodia 9/26/96
Canada 9/24/96
Cape Verde 10/1/96
Chad 10/8/96
Chile 9/24/96
China 9/24/96
Colombia 9/24/96
Comoros 12/12/96
Congo 2/11/97
Congo Republic1 10/4/96
Cook Islands 12/5/97
Costa Rica 9/24/96
Cote d'Ivoire 9/25/96
Croatia 9/24/96
Cyprus 9/24/96
Czech Republic 11/12/96

(Ratified 9/11/97)

Denmark 9/24/96
Djibouti 10/21/96
Dominican Republic 10/3/96
Ecuador 9/24/96
Egypt 10/14/96
El Salvador 9/24/96

(Ratified 9/11/98)

Equatorial Guinea 10/9/96
Estonia 11/20/96
Ethiopia 9/25/96
Country Signature
Fiji 9/24/96

(Ratified 10/10/96)

Finland 9/24/96
France 9/24/96

(Ratified 4/6/98)

Gabon 10/7/96
Georgia 9/24/96
Germany 9/24/96

(Ratified 8/20/98)

Ghana 10/3/96
Greece 9/24/96
Grenada 10/10/96

(Ratified 8/19/98)

Guinea 10/3/96
Guinea-Bissau 4/11/97
Haiti 9/24/96
Holy See 9/24/96
Honduras 9/25/96
Hungary 9/25/96
Iceland 9/24/96
Indonesia 9/24/96
Iran 9/24/96
Ireland 9/24/96
Israel 9/25/96
Italy 9/24/96
Jamaica 11/11/96
Japan 9/24/96

(Ratified 7/8/97)

Jordan 9/26/96

(Ratified 8/25/98)

Kazakhstan 9/30/96
Kenya 11/14/96
Kuwait 9/24/96
Kyrgyzstan 10/8/96
Laos 7/30/97
Country Signature
Latvia 9/24/96
Lesotho 9/30/96
Liberia 10/1/96
Liechtenstein 9/27/96
Lithuania 10/7/96
Luxembourg 9/24/96
Macedonia 10/29/98
Madagascar 10/9/96
Malawi 10/9/96
Malaysia 7/23/98
Maldives 10/1/97
Mali 2/18/97
Malta 9/24/96
Marshall Islands 9/24/96
Mauritania 9/24/96
Mexico 9/24/96
Micronesia 9/24/96

(Ratified 7/25/97)

Moldova 9/24/97
Monaco 10/1/96
Mongolia 10/1/96

(Ratified 8/8/97)

Morocco 9/24/96
Mozambique 9/26/96
Myanmar (Burma) 11/25/96
Namibia 9/24/96
Nepal 10/8/96
Netherlands 9/24/96
New Zealand 9/27/96
Nicaragua 9/24/96
Niger 10/3/96
Norway 9/24/96
Panama 9/24/96
Country Signature
Papua New Guinea 9/25/96
Paraguay 9/25/96
Peru 9/25/96

(Ratified 11/12/97)

Philippines 9/24/96
Poland 9/24/96
Portugal 9/24/96
Qatar 9/24/96

(Ratified 3/3/97)

Romania 9/24/96
Russia 9/24/96
Saint Lucia 10/4/96
Samoa 10/9/96
San Marino 10/7/96
Sao Tome and Principe 9/26/96
Senegal 9/26/96
Seychelles 9/24/96
Slovakia 9/30/96

(Ratified 3/3/98)

Slovenia 9/24/96
Solomon Islands 10/3/96
South Africa 9/24/96
South Korea 9/24/96
Spain 9/24/96

(Ratified 7/31/98)

Sri Lanka 10/24/96
Suriname 1/14/97
Swaziland 9/24/96
Sweden 9/24/96
Switzerland 9/24/96
Tajikistan 10/7/96

(Ratified 6/10/98)

Thailand 11/12/96
Togo 10/2/96
Country Signature
Tunisia 10/16/96
Turkey 9/24/96
Turkmenistan 9/24/96

(Ratified 2/20/98)

Uganda 11/7/96
Ukraine 9/27/96
United Arab Emirates 9/25/96
United Kingdom 9/24/96

(Ratified 4/6/98)

United States 9/24/96
Uruguay 9/24/96
Uzbekistan 10/3/96

(Ratified 5/29/97)

Vanuatu 9/24/96
Venezuela 10/3/96
Vietnam 9/24/96
Yemen 9/30/96
Zambia 12/3/96
NOTES

1. The Democratic Republic of The Congo, formerly Zaire. [Back to table]

Sources: UN, ACDA, and ACA.