Press Contact: Tom Z. Collina, Research Director, (202) 463-8270 x104
Updated: August 2012
The Chemical Weapons Convention (CWC) currently has 188 states-parties. Two signatory states have not yet ratified. The CWC entered into force on April 29, 1997, 180 days after the deposit of the 65th instrument of ratification. A country that did not ratify the CWC before it entered into force becomes a state-party to the CWC 30 days after it deposits its instruments of ratification or accession with the UN secretary-general.
For a guide to the terms of the convention, see The Chemical Weapons Convention (CWC) at a Glance.
Country |
Signature |
Ratification/Accession |
| Afghanistan | 1/14/93 |
9/24/03
|
| Albania | 1/14/93 |
5/11/94
|
| Algeria | 1/13/93 |
8/14/95
|
| Andorra | — | 2/27/03 |
| Antigua & Barbuda | — | 8/29/05 |
| Argentina | 1/13/93 |
10/2/95
|
| Armenia | 3/19/93 |
1/27/95
|
| Australia | 1/13/93 |
5/6/94
|
| Austria | 1/13/93 |
8/17/95
|
| Azerbaijan | 1/13/93 |
2/29/00
|
| Bahamas | 3/2/94 |
4/21/09
|
| Bahrain | 2/24/93 |
4/28/97
|
| Bangladesh | 1/14/93 |
4/25/97
|
| Barbados | — |
3/7/07
|
| Belarus | 1/14/93 |
7/11/96
|
| Belgium | 1/13/93 |
1/27/97
|
| Belize | — | 12/1/03 |
| Benin | 1/14/93 |
5/14/98
|
| Bhutan | 4/23/97 |
8/18/05
|
| Bolivia | 1/14/93 |
8/14/98
|
| Bosnia and Herzegovina | 1/16/97 |
2/25/97
|
| Botswana | — |
8/31/98
|
| Brazil | 1/13/93 |
3/13/96
|
| Brunei Darussalem | 1/13/93 |
7/28/97
|
| Bulgaria | 1/13/93 |
8/10/94
|
| Burkina Faso | 1/14/93 |
7/8/97
|
| Burundi | 1/15/93 |
9/4/98
|
| Cambodia | 1/15/93 |
7/19/05
|
| Cameroon | 1/14/93 |
9/16/96
|
| Canada | 1/13/93 |
9/26/95
|
| Cape Verde | 1/15/93 |
10/10/03
|
| Central African Republic | 1/14/93 |
9/20/06
|
| Chad | 10/11/94 |
2/13/04
|
| Chile | 1/14/93 |
7/12/96
|
| China | 1/13/93 |
4/25/97
|
| Colombia | 1/13/93 |
4/5/00
|
| Comoros | 1/13/93 |
9/17/06
|
| Congo | 1/15/93 |
12/4/07
|
| Cook Islands | 1/14/93 |
7/15/94
|
| Costa Rica | 1/14/93 |
5/31/96
|
| Côte d'Ivoire | 1/13/93 |
12/18/95
|
| Croatia | 1/13/93 |
5/23/95
|
| Cuba | 1/13/93 |
4/29/97
|
| Cyprus | 1/13/93 |
8/28/98
|
| Czech Republic | 1/14/93 |
3/6/96
|
| Democratic Republic of Congo | 1/14/93 |
10/12/05
|
| Denmark | 1/14/93 |
7/13/95
|
| Djibouti | 9/28/93 |
1/25/06
|
| Dominica | 8/2/93 |
2/12/01
|
| Dominican Republic | 1/13/93 |
3/26/09
|
| Ecuador | 1/14/93 |
9/6/95
|
| El Salvador | 1/14/93 |
10/30/95
|
| Equatorial Guinea | 1/14/93 |
4/25/97
|
| Eritrea | — |
2/14/00
|
| Estonia | 1/14/93 |
5/26/99
|
| Ethiopia | 1/14/93 |
5/13/96
|
| Fiji | 1/14/93 |
1/20/93
|
| Finland | 1/14/93 |
2/7/95
|
| France | 1/13/93 |
3/2/95
|
| Gabon | 1/13/93 |
9/8/00
|
| Gambia | 1/13/93 |
5/19/98
|
| Georgia | 1/14/93 |
11/27/95
|
| Germany | 1/13/93 |
8/12/94
|
| Ghana | 1/14/93 |
7/9/97
|
| Greece | 1/13/93 |
12/22/94
|
| Grenada | 4/9/97 |
6/3/05
|
| Guatemala | 1/14/93 |
2/12/03
|
| Guinea | 1/14/93 |
6/9/97
|
| Guinea-Bissau | 1/14/93 |
6/19/08
|
| Guyana | 10/6/93 |
9/12/97
|
| Haiti | 1/14/93 |
2/22/06
|
| Holy See | 1/14/93 |
5/12/99
|
| Honduras | 1/13/93 |
8/29/05
|
| Hungary | 1/13/93 |
10/31/96
|
| Iceland | 1/13/93 |
4/28/97
|
| India | 1/14/93 |
9/3/96
|
| Indonesia | 1/13/93 |
11/12/98
|
| Iran | 1/13/93 |
11/3/97
|
| Iraq | — | 1/13/09 |
| Ireland | 1/14/93 |
6/24/96
|
| Israel | 1/13/93 |
—
|
| Italy | 1/13/93 |
12/8/95
|
| Jamaica | 4/18/97 |
9/8/00
|
| Japan | 1/13/93 |
9/15/95
|
| Jordan | — |
10/29/97
|
| Kazakhstan | 1/14/93 |
3/23/00
|
| Kenya | 1/15/93 |
4/25/97
|
| Kiribati | — |
9/7/00
|
| Kuwait | 1/27/93 |
5/28/97
|
| Kyrgyzstan | 2/22/93 |
9/29/03
|
| Laos | 5/13/93 |
2/25/97
|
| Latvia | 5/6/93 |
7/23/96
|
| Lebanon | — | 11/20/08 |
| Lesotho | 12/7/94 |
12/7/94
|
| Liberia | 1/15/93 |
3/25/06
|
| Libya | — | 1/6/04 |
| Liechtenstein | 7/21/93 |
11/24/99
|
| Lithuania | 1/13/93 |
4/15/98
|
| Luxembourg | 1/13/93 |
4/15/97
|
| Macedonia | — |
6/20/97
|
| Madagascar | 1/15/93 |
10/20/04
|
| Malawi | 1/14/93 |
6/11/98
|
| Malaysia | 1/13/93 |
4/20/00
|
| Maldives | 10/1/93 |
5/31/94
|
| Mali | 1/13/93 |
4/28/97
|
| Malta | 1/13/93 |
4/28/97
|
| Marshall Islands | 1/13/93 |
5/19/04
|
| Mauritania | 1/13/93 |
2/9/98
|
| Mauritius | 1/14/93 |
2/9/93
|
| Mexico | 1/13/93 |
8/29/94
|
| Micronesia | 1/13/93 |
6/21/99
|
| Moldova | 1/13/93 |
7/8/96
|
| Monaco | 1/13/93 |
6/1/95
|
| Mongolia | 1/14/93 |
1/17/95
|
| Montenegro | — |
10/23/06
|
| Morocco | 1/13/93 |
12/28/95
|
| Mozambique | — |
8/15/00
|
| Myanmar | 1/14/93 |
—
|
| Namibia | 1/13/93 |
11/27/95
|
| Nauru | 1/13/93 |
11/12/01
|
| Nepal | 1/19/93 |
11/18/97
|
| Netherlands | 1/14/93 |
6/30/95
|
| New Zealand | 1/14/93 |
7/15/96
|
| Nicaragua | 3/9/93 |
11/5/99
|
| Niger | 1/14/93 |
4/9/97
|
| Nigeria | 1/13/93 |
5/20/99
|
| Niue | — |
4/21/05
|
| Norway | 1/13/93 |
4/7/94
|
| Oman | 2/2/93 |
2/8/95
|
| Pakistan | 1/13/93 |
10/28/97
|
| Palau | — | 2/3/03 |
| Panama | 6/16/93 |
10/7/98
|
| Papua New Guinea | 1/14/93 |
4/17/96
|
| Paraguay | 1/14/93 |
12/1/94
|
| Peru | 1/14/93 |
7/20/95
|
| Philippines | 1/13/93 |
12/11/96
|
| Poland | 1/13/93 |
8/23/95
|
| Portugal | 1/13/93 |
9/10/96
|
| Qatar | 2/1/93 |
9/3/97
|
| Romania | 1/13/93 |
2/15/95
|
| Russia | 1/13/93 |
11/5/97
|
| Rwanda | 5/17/93 |
3/31/04
|
| St. Kitts & Nevis | 3/16/94 |
5/21/04
|
| St. Lucia | 3/29/93 |
4/9/97
|
| St. Vincent & the Grenadines | 9/20/93 |
9/18/02
|
| Samoa | 1/14/93 |
9/27/02
|
| San Marino | 1/13/93 |
12/10/99
|
| Sao Tome and Principe | — | 9/9/03 |
| Saudi Arabia | 1/20/93 |
8/9/96
|
| Senegal | 1/13/93 |
7/20/98
|
| Serbia | — | 4/20/00 |
| Seychelles | 1/15/93 |
4/7/93
|
| Sierra Leone | 1/15/93 |
9/30/04
|
| Singapore | 1/14/93 |
5/21/97
|
| Slovak Republic | 1/14/93 |
10/27/95
|
| Slovenia | 1/14/93 |
6/11/97
|
| Solomon Islands | — |
9/23/04
|
| South Africa | 1/14/93 |
9/13/95
|
| South Korea | 1/14/93 |
4/28/97
|
| Spain | 1/13/93 |
8/3/94
|
| Sri Lanka | 1/14/93 |
8/19/94
|
| Sudan | — |
5/24/99
|
| Suriname | 4/28/97 |
4/28/97
|
| Swaziland | 9/23/93 |
11/20/96
|
| Sweden | 1/13/93 |
6/17/93
|
| Switzerland | 1/14/93 |
3/10/95
|
| Tajikistan | 1/14/93 |
1/11/95
|
| Tanzania | 2/25/94 |
6/25/98
|
| Thailand | 1/14/93 |
12/10/02
|
| Timor Leste | — | 5/7/03 |
| Togo | 1/13/93 |
4/23/97
|
| Tonga | — | 5/29/03 |
| Trinidad & Tobago | — |
6/24/97
|
| Tunisia | 1/13/93 |
4/15/97
|
| Turkey | 1/14/93 |
5/12/97
|
| Turkmenistan | 10/12/93 |
9/29/94
|
| Tuvalu | — |
1/19/04
|
| Uganda | 1/14/93 |
11/30/01
|
| Ukraine | 1/13/93 |
10/16/98
|
| United Arab Emirates | 2/2/93 |
11/28/00
|
| United Kingdom | 1/13/93 |
5/13/96
|
| United States | 1/13/93 |
4/25/97
|
| Uruguay | 1/15/93 |
10/6/94
|
| Uzbekistan | 11/24/95 |
7/23/96
|
| Vanuatu | — |
9/16/05
|
| Venezuela | 1/14/93 |
12/3/97
|
| Vietnam | 1/13/93 |
9/30/98
|
| Yemen | 2/8/93 |
10/2/00
|
| Zambia | 1/13/93 |
2/9/01
|
| Zimbabwe | 1/13/93 |
4/25/97
|
5 States have neither signed, or ratified or acceded to the CWC:
- Angola
- Egypt
- North Korea
- Somalia
- South Sudan
- Syria
Source: Organization for the Prohibition of Chemical Weapons