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"[Arms Control Today is] Absolutely essential reading for the upcoming Congressional budget debate on the 2018 #NPR and its specific recommendations ... well-informed, insightful, balanced, and filled with common sense."

– Frank Klotz
former Administrator of the National Nuclear Security Administration
March 7, 2018
Treaty Membership and Signatory Status

The Status of the Comprehensive Test Ban Treaty: Signatories and Ratifiers

February 2019

Contact: Daryl Kimball, Executive Director, (202) 463-8270 x107

Updated: February 2019

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 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 October 13, 1999. President Obama, however, stated in February 2009 that he intended to pursue Senate advice and consent to ratification of the treaty "immediately and aggressively."

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, 184 states have signed and 168 have ratified the treaty. Yet 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: 184
Total Ratifiers: 168

Annex 2 Ratifications (out of 44): 36

Country
Signature
Ratification
Afghanistan9/24/039/24/03
Albania9/27/964/23/03
Algeria*10/15/967/11/03
Andorra9/24/967/12/06
Angola9/27/963/20/15
Antigua and Barbuda4/16/971/11/06
Argentina*9/24/9612/4/98
Armenia10/1/967/12/06
Australia*9/24/967/9/98
Austria*9/24/963/13/98
Azerbaijan7/28/972/2/99
Bahamas2/4/0511/30/07
Bahrain9/24/964/12/04
Bangladesh*10/24/963/8/00
Barbados1/14/081/14/08
Belarus9/24/969/13/00
Belgium*9/24/966/29/99
Belize11/14/013/26/04
Benin9/27/963/6/01
Buhtan  
Bolivia9/24/9610/4/99
Bosnia and Herzegovina9/24/9610/26/06
Botswana9/16/0210/28/02
Brazil*9/24/967/24/98
Brunei Darussalam1/22/971/10/13
Bulgaria*9/24/969/29/99
Burkina Faso9/27/964/17/02
Burundi9/24/969/24/08
Cambodia9/26/9611/10/00
Cameroon11/16/012/6/06
Canada*9/24/9612/18/98
Cape Verde10/1/963/1/06
Central African Republic12/19/015/26/10
Chad10/8/962/8/13
Chile*9/24/967/12/00
China*9/24/96 
Colombia*9/24/961/29/08
Comoros12/12/96 
Congo2/11/979/2/14
Cook Islands12/5/979/6/05
Costa Rica9/24/969/25/01
Côte d'Ivoire9/25/963/11/03
Croatia9/24/963/2/01
Cuba  
Cyprus9/24/967/18/03
Czech Republic11/12/969/11/97
Dem. Republic of Congo*10/4/969/28/04
Denmark9/24/9612/21/98
Djibouti10/21/967/15/05
Dominica  
Dominican Republic10/3/969/4/07
Ecuador9/24/9611/12/01
Egypt*10/14/96 
El Salvador9/24/969/11/98
Equatorial Guinea10/9/96 
Eritrea11/11/0311/11/03
Estonia11/20/968/13/99
Ethiopia9/25/968/8/06
Fiji9/24/9610/10/96
Finland*9/24/961/15/99
France*9/24/964/6/98
Gabon10/7/969/20/00
Gambia4/9/03 
Georgia9/24/969/27/02
Germany*9/24/968/20/98
Ghana10/3/9606/14/11
Greece9/24/964/21/99
Grenada10/10/968/19/98
Guatemala9/20/991/12/12
Guinea10/3/9609/20/11
Guinea-Bissau4/11/9709/30/13
Guyana9/7/003/7/01
Haiti9/24/9612/1/05
Holy See9/24/967/18/01
Honduras9/25/9610/30/03
Hungary*9/25/967/13/99
Iceland9/24/96

6/26/00

India*  
Indonesia*9/24/962/6/12
Iran*9/24/96 
Iraq8/19/0809/26/13
Ireland9/24/967/15/99
Israel*9/25/96 
Italy*9/24/962/1/99
Jamaica11/11/9611/13/01
Japan*9/24/967/8/97
Jordan9/26/968/25/98
Kazakhstan9/30/965/14/02
Kenya11/14/9611/30/00
Kiribati9/7/009/7/00
Kuwait9/24/965/6/03
Kyrgyzstan10/8/9610/02/03
Laos7/30/9710/5/00
Latvia9/24/9611/20/01
Lebanon9/16/0511/21/08
Lesotho9/30/969/14/99
Liberia10/1/968/17/09
Libya11/13/011/6/04
Liechtenstein9/27/969/21/04
Lithuania10/7/962/7/00
Luxembourg9/24/965/26/99
Macedonia10/29/983/14/00
Madagascar10/9/969/15/05
Malawi10/9/9611/21/08
Malaysia7/23/981/17/08
Maldives10/1/979/7/00
Mali2/18/978/4/99
Malta9/24/967/23/01
Marshall Islands9/24/9610/28/09
Mauritania9/24/964/30/03
Maritius  
Mexico*9/24/9610/5/99
Micronesia9/24/967/25/97
Moldova9/24/971/16/07
Monaco10/1/9612/18/98
Mongolia10/1/968/8/97
Montenegro10/23/0610/23/06
Morocco9/24/964/17/00
Mozambique9/26/9611/4/08
Myanmar11/25/969/21/16
Namibia9/24/966/29/01
Nauru9/8/0011/12/01
Nepal10/8/96 
Netherlands*9/24/963/23/99
New Zealand9/27/963/19/99
Nicaragua9/24/9612/5/00
Niger10/3/969/9/02
Nigeria9/8/00

9/27/01

Niue4/9/123/5/14
North Korea*  
Norway*9/24/967/15/99
Oman9/23/996/13/03
Pakistan*  
Palau8/12/038/1/07
Panama9/24/963/23/99
Papua New Guinea9/25/96 
Paraguay9/25/9610/4/01
Peru*9/25/9611/12/97
Philippines9/24/962/23/01
Poland*9/24/965/25/99
Portugal9/24/966/26/00
Qatar9/24/963/3/97
Romania*9/24/9610/5/99
Russia*9/24/966/30/00
Rwanda11/30/'200411/30/04
St. Kitts and Nevis3/33/044/27/05
St. Lucia10/4/964/5/01
St. Vincent and the Grenadines7/2/099/23/09
Samoa10/9/969/27/02
San Marino10/7/963/12/02
Sao Tome and Principe9/26/96 
Saudi Arabia  
Senegal9/26/966/9/99
Serbia and Montenegro6/8/015/19/04
Seychelles9/24/964/13/04
Sierra Leone9/8/009/17/01
Singapore1/14/9911/10/01
Slovakia*9/30/963/3/98
Slovenia9/24/968/31/99
Solomon Islands10/3/96 
Somalia  
South Africa*9/24/963/30/99
South Korea*9/24/969/24/99
South Sudan  
Spain*9/24/967/31/98
Sri Lanka10/24/96 
Sudan6/10/046/10/04
Suriname1/14/972/7/06
Swaziland9/24/969/21/16
Sweden*9/24/9612/2/98
Switzerland*9/24/9610/1/99
Syria  
Tajikistan10/7/966/10/98
Tarzania9/30/049/30/04
Thailand11/12/969/25/18
Timor-Leste9/26/08 
Togo10/2/967/2/04
Tonga  
Trinidad and Tobago10/8/095/26/10
Tunisia10/16/969/23/04
Turkey*9/24/962/16/00
Turkmenistan9/24/962/20/98
Tuvalu9/25/18 
Uganda11/7/963/14/01
Ukraine*9/27/962/23/01
United Arab Emirates9/25/969/18/00
United Kingdom*9/24/964/6/98
United States*9/24/96 
Uruguay9/24/969/21/01
Uzbekistan10/3/965/29/97
Vanuatu9/24/969/16/05
Venezuela10/3/965/13/02
Viet Nam*9/24/963/10/06
Yemen9/30/96 
Zambia12/3/962/23/06
Zimbabwe10/13/992/13/19

Nuclear Testing

Country Resources:

Biological Weapons Convention Signatories and States-Parties

September 2018

Contact: Kelsey Davenport, Director for Nonproliferation Policy, (202) 463-8270 x102

Updated: September 2018

The Biological Weapons Convention (BWC) currently has 182 states-parties, including Palestine, and five signatories (Egypt, Haiti, Somalia, Syria, and Tanzania). Ten states have neither signed nor ratified the BWC (Chad, Comoros, Djibouti, Eritrea, Israel, Kiribati, Micronesia, Namibia, South Sudan and Tuvalu). The BWC opened for signature on April 10, 1972 and entered into force on March 26, 1975. A country that did not ratify the BWC before it entered into force may accede to it at any time.

For a guide to the terms of the convention, see The Biological Weapons Convention (BWC) at a Glance.

 

Country

Signature

Ratification/Accession

Afghanistan4/10/72
3/26/75
Albania-
6/3/92
Algeria-
7/22/01
Andorra-
02/27/15
Angola-
07/26/16
Antigua & Barbuda-1/29/03
Argentina8/1/7211/27/79
Armenia-
6/7/94
Australia4/10/72
10/5/77
Austria4/10/72
8/10/73
Azerbaijan-
2/26/04
Bahamas-11/26/86
Bahrain-
10/28/88
Bangladesh-
3/11/85
Barbados2/16/732/16/73
Belarus4/10/72
3/26/75
Belgium4/10/72
3/15/79
Belize [1]-10/20/86
Benin4/10/72
4/25/75
Bhutan-
6/8/78
Bolivia4/10/72
4/25/75
Bosnia and Herzegovina [2]-
8/15/94
Botswana4/10/72
2/5/92
Brazil4/10/72
2/27/73
Brunei Darussalem-
1/31/91
Bulgaria4/10/72
8/2/72
Burkina Faso-
4/17/91
Burundi4/10/72
10/18/11
Cambodia4/10/72
3/9/83
Cameroon-1/18/13
Canada4/10/72
9/18/72
Cape Verde-
10/20/77
Central African Republic4/10/729/25/18
Chile4/10/72
4/22/80
China-
11/15/84
Colombia4/10/72
12/19/83
Congo-
10/23/78
Cook Islands-12/4/08
Costa Rica4/10/72
12/17/73
Côte d'Ivoire5/23/72
3/23/16
Croatia [2]-
4/28/93
Cuba4/10/72
4/21/76
Cyprus4/10/72
11/6/73
Czech Republic [3]-
4/5/93
Democratic Republic of Congo [4]4/10/72
9/16/75
Denmark4/10/72
3/1/73
Dominica-
11/8/78
Dominican Republic4/10/72
2/23/73
Ecuador6/14/72
3/21/73
Egypt4/10/72-
El Salvador4/10/72
12/31/91
Equatorial Guinea-
1/16/89
Estonia-
6/21/93
Ethiopia4/10/72
5/26/75
Fiji2/22/73
9/4/73
Finland4/10/72
2/4/74
France-
9/27/84
Gabon4/10/72
8/16/07
Gambia6/2/72
11/21/91
Georgia-
5/23/96
Germany [5]4/10/72
11/28/72
Ghana4/10/72
6/6/75
Greece4/10/72
12/10/75
Grenada-
10/22/86
Guatemala5/9/72
9/19/73
Guinea 11/9/16
Guinea-Bissau-
8/20/76
Guyana1/3/73
3/26/13
Haiti4/10/72
-
Holy See1/4/02
1/4/02
Honduras4/10/72
3/14/79
Hungary4/10/7212/27/72
Iceland4/10/72
2/15/73
India1/15/73
7/15/74
Indonesia6/20/72
2/19/92
Iran4/10/72
8/22/73
Iraq5/11/726/19/91
Ireland4/10/7210/27/72
Italy4/10/72
5/30/75
Jamaica-
8/13/75
Japan4/10/72
6/8/82
Jordan4/10/72
5/30/75
Kazakhstan-
6/15/07
Kenya-
11/7/76
Kuwait4/14/72
7/18/72
Kyrgyzstan-10/15/04
Laos4/10/72
3/20/73
Latvia-
2/6/97
Lebanon4/10/723/26/75
Lesotho4/10/72
9/6/77
Liberia4/10/72
11/4/16
Libya-1/19/82
Liechtenstein-
5/30/91
Lithuania-
2/10/98
Luxembourg4/10/72
3/23/76
Macedonia [2]-
12/24/96
Madagascar10/13/72
3/7/08
Malawi4/10/72
4/2/13
Malaysia4/10/72
9/6/91
Maldives-
8/2/93
Mali4/10/72
11/25/02
Malta9/11/72
4/7/75
Marshall Islands 11/15/12
Mauritania 1/28/15
Mauritius4/10/72
8/7/72
Mexico4/10/72
4/8/74
Moldova-1/25/05
Monaco-
4/30/99
Mongolia4/10/72
9/5/72
Montenegro [6]4/10/72
6/3/06
Morocco5/2/72
3/21/02
Mozambique-3/29/11
Myanmar4/10/72 12/1/14
Nauru-3/5/13
Nepal4/10/72
11/4/16
Netherlands4/10/72
6/22/81
New Zealand4/10/72
12/13/72
Nicaragua4/10/72
7/8/75
Niger4/21/72
6/23/72
Nigeria7/3/72
7/3/73
Niue 6/14/18
North Korea-3/13/87
Norway4/10/72
8/1/73
Oman-
3/31/92
Pakistan4/10/72
9/25/74
Palau-2/20/03
Palestine-1/9/18
Panama5/2/723/20/74
Papua New Guinea-
10/27/80
Paraguay-
6/9/76
Peru4/10/72
6/5/85
Philippines4/10/72
5/21/73
Poland4/10/72
1/25/73
Portugal6/29/72
5/15/75
Qatar11/14/72
4/17/75
Romania4/10/72
7/25/79
Russia [7]4/10/72
3/26/75
Rwanda4/10/72
5/20/75
St. Kitts & Nevis-
4/2/91
St. Lucia [8]-
11/26/86
St. Vincent & the Grenadines [8]-
4/2/91
Samoa 9/21/17
San Marino9/12/72
3/11/75
Sao Tome and Principe-8/24/79
Saudi Arabia4/10/72
5/24/72
Senegal4/10/72
3/26/75
Serbia [2] [6]4/10/7210/25/73
Seychelles-
10/11/79
Sierra Leone11/7/72
6/29/76
Singapore6/19/72
12/2/75
Slovakia [3]-
5/17/93
Slovenia [2]-
4/7/92
Solomon Islands [8]-
6/17/81
Somalia7/3/72-
South Africa4/10/72
11/3/75
South Korea4/10/72
6/25/87
Spain4/10/72
6/20/79
Sri Lanka4/10/72
11/18/86
Sudan-
10/17/03
Suriname-
1/6/93
Swaziland-
6/18/91
Sweden2/27/75
2/5/76
Switzerland4/10/72
5/4/76
Syria4/14/72-
Tajikistan-6/27/05
Tanzania8/16/72
-
Thailand1/17/73
5/28/75
Timor Leste-5/5/03
Togo4/10/72
11/10/76
Tonga-9/28/76
Trinidad & Tobago-7/19/07
Tunisia4/10/72
5/18/73
Turkey4/10/72
10/25/74
Turkmenistan-1/11/96
Uganda-
5/12/92
Ukraine4/10/72
3/26/75
United Arab Emirates9/28/72
6/19/08
United Kingdom4/10/72
3/26/75
United States4/10/72
3/26/75
Uruguay-
4/6/81
Uzbekistan-
1/11/96
Vanuatu-
10/12/90
Venezuela4/10/72
10/18/78
Vietnam-
6/20/80
Yemen [9]4/26/72
6/1/79
Zambia-
1/15/08
Zimbabwe-
11/5/90

Taiwan (the Republic of China) has also stated its intent to abide by the treaty, despite not being a state party. The Republic of China signed the treaty on April 10, 1972 and ratified it on February 9, 1973.

Source: UN Website

Research assistance by Marissa Papatola

Footnotes

1. Succession from the United Kingdom

2. Succession from Yugoslavia

3. Succession from Czechoslovakia

4. Ratification as Zaire

5. Ratification as East Germany and West Germany

6. Ratified as Serbia and Montenegro

7. Ratified as the Soviet Union

8. Succession from the United Kingdom

9. Ratified as South Yemen and North Yemen

Strategic Arms Control and Policy

Country Resources:

Chemical Weapons Convention Signatories and States-Parties

June 2018 

Contact: Daryl KimballExecutive Director, (202) 463-8270 x107

Updated: June 2018

The Chemical Weapons Convention (CWC) entered into force on April 29, 1997 and currently has 193 states-parties. One state has signed but not ratified (Israel). Three states have neither signed nor ratified (Egypt, North Korea, and South Sudan).

For a guide to the convention, see The Chemical Weapons Convention (CWC) at a Glance.

 

Country

Signature

Ratification/Accession

Afghanistan1/14/93
9/24/03
Albania1/14/93
5/11/94
Algeria1/13/93
8/14/95
Andorra2/27/03
Angola9/16/15
Antigua & Barbuda8/29/05
Argentina1/13/93
10/2/95
Armenia3/19/93
1/27/95
Australia1/13/93
5/6/94
Austria1/13/93
8/17/95
Azerbaijan1/13/93
2/29/00
Bahamas3/2/94
4/21/09
Bahrain2/24/93
4/28/97
Bangladesh1/14/93
4/25/97
Barbados
3/7/07
Belarus1/14/93
7/11/96
Belgium1/13/93
1/27/97
Belize12/1/03
Benin1/14/93
5/14/98
Bhutan4/23/97
8/18/05
Bolivia1/14/93
8/14/98
Bosnia and Herzegovina1/16/97
2/25/97
Botswana
8/31/98
Brazil1/13/93
3/13/96
Brunei Darussalem1/13/93
7/28/97
Bulgaria1/13/93
8/10/94
Burkina Faso1/14/93
7/8/97
Burundi1/15/93
9/4/98
Cambodia1/15/93
7/19/05
Cameroon1/14/93
9/16/96
Canada1/13/93
9/26/95
Cape Verde1/15/93
10/10/03
Central African Republic1/14/93
9/20/06
Chad10/11/94
2/13/04
Chile1/14/93
7/12/96
China1/13/93
4/25/97
Colombia1/13/93
4/5/00
Comoros1/13/93
9/17/06
Congo1/15/93
12/4/07
Cook Islands1/14/93
7/15/94
Costa Rica1/14/93
5/31/96
Côte d'Ivoire1/13/93
12/18/95
Croatia1/13/93
5/23/95
Cuba1/13/93
4/29/97
Cyprus1/13/93
8/28/98
Czech Republic1/14/93
3/6/96
Democratic Republic of Congo1/14/93
10/12/05
Denmark1/14/93
7/13/95
Djibouti9/28/93
1/25/06
Dominica8/2/93
2/12/01
Dominican Republic1/13/93
3/26/09
Ecuador1/14/93
9/6/95
El Salvador1/14/93
10/30/95
Egypt  
Equatorial Guinea1/14/93
4/25/97
Eritrea
2/14/00
Estonia1/14/93
5/26/99
Ethiopia1/14/93
5/13/96
Fiji1/14/93
1/20/93
Finland1/14/93
2/7/95
France1/13/93
3/2/95
Gabon1/13/93
9/8/00
Gambia1/13/93
5/19/98
Georgia1/14/93
11/27/95
Germany1/13/93
8/12/94
Ghana1/14/93
7/9/97
Greece1/13/93
12/22/94
Grenada4/9/97
6/3/05
Guatemala1/14/93
2/12/03
Guinea1/14/93
6/9/97
Guinea-Bissau1/14/93
6/19/08
Guyana10/6/93
9/12/97
Haiti1/14/93
2/22/06
Holy See1/14/93
5/12/99
Honduras1/13/93
8/29/05
Hungary1/13/93
10/31/96
Iceland1/13/93
4/28/97
India1/14/93
9/3/96
Indonesia1/13/93
11/12/98
Iran1/13/93
11/3/97
Iraq1/13/09
Ireland1/14/93
6/24/96
Israel1/13/93
Italy1/13/93
12/8/95
Jamaica4/18/97
9/8/00
Japan1/13/93
9/15/95
Jordan
10/29/97
Kazakhstan1/14/93
3/23/00
Kenya1/15/93
4/25/97
Kiribati
9/7/00
Kuwait1/27/93
5/28/97
Kyrgyzstan2/22/93
9/29/03
Laos5/13/93
2/25/97
Latvia5/6/93
7/23/96
Lebanon11/20/08
Lesotho12/7/94
12/7/94
Liberia1/15/93
3/25/06
Libya1/6/04
Liechtenstein7/21/93
11/24/99
Lithuania1/13/93
4/15/98
Luxembourg1/13/93
4/15/97
Macedonia
6/20/97
Madagascar1/15/93
10/20/04
Malawi1/14/93
6/11/98
Malaysia1/13/93
4/20/00
Maldives10/1/93
5/31/94
Mali1/13/93
4/28/97
Malta1/13/93
4/28/97
Marshall Islands1/13/93
5/19/04
Mauritania1/13/93
2/9/98
Mauritius1/14/93
2/9/93
Mexico1/13/93
8/29/94
Micronesia1/13/93
6/21/99
Moldova1/13/93
7/8/96
Monaco1/13/93
6/1/95
Mongolia1/14/93
1/17/95
Montenegro
10/23/06
Morocco1/13/93
12/28/95
Mozambique
8/15/00
Myanmar1/14/9308/07/15
Namibia1/13/93
11/27/95
Nauru1/13/93
11/12/01
Nepal1/19/93
11/18/97
Netherlands1/14/93
6/30/95
New Zealand1/14/93
7/15/96
Nicaragua3/9/93
11/5/99
Niger1/14/93
4/9/97
Nigeria1/13/93
5/20/99
Niue
4/21/05
North Korea  
Norway1/13/93
4/7/94
Oman2/2/93
2/8/95
Pakistan1/13/93
10/28/97
Palau2/3/03
Palestine5/17/18
Panama6/16/93
10/7/98
Papua New Guinea1/14/93
4/17/96
Paraguay1/14/93
12/1/94
Peru1/14/93
7/20/95
Philippines1/13/93
12/11/96
Poland1/13/93
8/23/95
Portugal1/13/93
9/10/96
Qatar2/1/93
9/3/97
Romania1/13/93
2/15/95
Russia1/13/93
11/5/97
Rwanda5/17/93
3/31/04
St. Kitts & Nevis3/16/94
5/21/04
St. Lucia3/29/93
4/9/97
St. Vincent & the Grenadines9/20/93
9/18/02
Samoa1/14/93
9/27/02
San Marino1/13/93
12/10/99
Sao Tome and Principe9/9/03
Saudi Arabia1/20/93
8/9/96
Senegal1/13/93
7/20/98
Serbia4/20/00
Seychelles1/15/93
4/7/93
Sierra Leone1/15/93
9/30/04
Singapore1/14/93
5/21/97
Slovak Republic1/14/93
10/27/95
Slovenia1/14/93
6/11/97
Solomon Islands
9/23/04
Somalia5/29/13
South Africa1/14/93
9/13/95
South Korea1/14/93
4/28/97
South Sudan  
Spain1/13/93
8/3/94
Sri Lanka1/14/93
8/19/94
Sudan
5/24/99
Suriname4/28/97
4/28/97
Swaziland9/23/93
11/20/96
Sweden1/13/93
6/17/93
Switzerland1/14/93
3/10/95
Syria 9/12/13*
Tajikistan1/14/93
1/11/95
Tanzania2/25/94
6/25/98
Thailand1/14/93
12/10/02
Timor Leste5/7/03
Togo1/13/93
4/23/97
Tonga5/29/03
Trinidad & Tobago
6/24/97
Tunisia1/13/93
4/15/97
Turkey1/14/93
5/12/97
Turkmenistan10/12/93
9/29/94
Tuvalu
1/19/04
Uganda1/14/93
11/30/01
Ukraine1/13/93
10/16/98
United Arab Emirates2/2/93
11/28/00
United Kingdom1/13/93
5/13/96
United States1/13/93
4/25/97
Uruguay1/15/93
10/6/94
Uzbekistan11/24/95
7/23/96
Vanuatu
9/16/05
Venezuela1/14/93
12/3/97
Vietnam1/13/93
9/30/98
Yemen2/8/93
10/2/00
Zambia1/13/93
2/9/01
Zimbabwe1/13/93
4/25/97

*Syria sent a letter to the United Nations Secretary General which said that Assad signed a legislative decree providing the accession of Syria to the Chemical Weapons Convention. In the letter, Assad said Syria would observe its CWC obligations immediately, as opposed to 30 days from the date of accession, as stipulated in the treaty.

    Source: Organization for the Prohibition of Chemical Weapons

    Chemical/Biological Arms Control

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