Arms control & security
Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction
Source: UN Treaty Collection · scraped 2026-09-26
Figures below count the 193 UN member states separately from other parties to this treaty (international organizations and non-member observer states) — a treaty can have more parties than there are UN member states.
189/193
RatifiedUN member states
193 in total, incl. 4 non-UN members (Cook Islands, Holy See, Niue, State of Palestine)
1
Signed, not ratifiedUN member states
0
WithdrawnUN member states
3
No actionUN member states
| Country | Signature | Ratification | Withdrawal | Status |
|---|---|---|---|---|
| Afghanistan | 1993-01-14 | 2003-09-24 | — | Ratified |
| Albania | 1993-01-14 | 1994-05-11 | — | Ratified |
| Algeria | 1993-01-13 | 1995-08-14 | — | Ratified |
| Andorra | — | 2003-02-27(Accession) | — | Ratified |
| Angola | — | 2015-09-16(Accession) | — | Ratified |
| Antigua and Barbuda | — | 2005-08-29(Accession) | — | Ratified |
| Argentina | 1993-01-13 | 1995-10-02 | — | Ratified |
| Armenia | 1993-03-19 | 1995-01-27 | — | Ratified |
| Australia | 1993-01-13 | 1994-05-06 | — | Ratified |
| Austria | 1993-01-13 | 1995-08-17 | — | Ratified |
| Azerbaijan | 1993-01-13 | 2000-02-29 | — | Ratified |
| Bahamas | 1994-03-02 | 2009-04-21 | — | Ratified |
| Bahrain | 1993-02-24 | 1997-04-28 | — | Ratified |
| Bangladesh | 1993-01-14 | 1997-04-25 | — | Ratified |
| Barbados | — | 2007-03-07(Accession) | — | Ratified |
| Belarus | 1993-01-14 | 1996-07-11 | — | Ratified |
| Belgium | 1993-01-13 | 1997-01-27 | — | Ratified |
| Belize | — | 2003-12-01(Accession) | — | Ratified |
| Benin | 1993-01-14 | 1998-05-14 | — | Ratified |
| Bhutan | 1997-04-24 | 2005-08-18 | — | Ratified |
| Bolivia | 1993-01-14 | 1998-08-14 | — | Ratified |
| Bosnia and Herzegovina | 1997-01-16 | 1997-02-25 | — | Ratified |
| Botswana | — | 1998-08-31(Accession) | — | Ratified |
| Brazil | 1993-01-13 | 1996-03-13 | — | Ratified |
| Brunei Darussalam | 1993-01-13 | 1997-07-28 | — | Ratified |
| Bulgaria | 1993-01-13 | 1994-08-10 | — | Ratified |
| Burkina Faso | 1993-01-14 | 1997-07-08 | — | Ratified |
| Burundi | 1993-01-15 | 1998-09-04 | — | Ratified |
| Cabo Verde | 1993-01-15 | 2003-10-10 | — | Ratified |
| Cambodia | 1993-01-15 | 2005-07-19 | — | Ratified |
| Cameroon | 1993-01-14 | 1996-09-16 | — | Ratified |
| Canada | 1993-01-13 | 1995-09-26 | — | Ratified |
| Central African Republic | 1993-01-14 | 2006-09-20 | — | Ratified |
| Chad | 1994-10-11 | 2004-02-13 | — | Ratified |
| Chile | 1993-01-14 | 1996-07-12 | — | Ratified |
| China | 1993-01-13 | 1997-04-25 | — | Ratified |
| Colombia | 1993-01-13 | 2000-04-05 | — | Ratified |
| Comoros | 1993-01-13 | 2006-08-18 | — | Ratified |
| Congo | 1993-01-15 | 2007-12-04 | — | Ratified |
| Cook IslandsNon-UN member | 1993-01-14 | 1994-07-15 | — | Ratified |
| Costa Rica | 1993-01-14 | 1996-05-31 | — | Ratified |
| Croatia | 1993-01-13 | 1995-05-23 | — | Ratified |
| Cuba | 1993-01-13 | 1997-04-29 | — | Ratified |
| Cyprus | 1993-01-13 | 1998-08-28 | — | Ratified |
| Czech Republic | 1993-01-14 | 1996-03-06 | — | Ratified |
| Côte d'Ivoire | 1993-01-13 | 1995-12-18 | — | Ratified |
| Democratic Republic of the Congo | 1993-01-14 | 2005-10-12 | — | Ratified |
| Denmark | 1993-01-14 | 1995-07-13 | — | Ratified |
| Djibouti | 1993-09-28 | 2006-01-25 | — | Ratified |
| Dominica | 1993-08-02 | 2001-02-12 | — | Ratified |
| Dominican Republic | 1993-01-13 | 2009-03-27 | — | Ratified |
| Ecuador | 1993-01-14 | 1995-09-06 | — | Ratified |
| El Salvador | 1993-01-14 | 1995-10-30 | — | Ratified |
| Equatorial Guinea | 1993-01-14 | 1997-04-25 | — | Ratified |
| Eritrea | — | 2000-02-14(Accession) | — | Ratified |
| Estonia | 1993-01-14 | 1999-05-26 | — | Ratified |
| Eswatini | 1993-09-23 | 1996-11-20 | — | Ratified |
| Ethiopia | 1993-01-14 | 1996-05-13 | — | Ratified |
| Fiji | 1993-01-14 | 1993-01-20 | — | Ratified |
| Finland | 1993-01-14 | 1995-02-07 | — | Ratified |
| France | 1993-01-13 | 1995-03-02 | — | Ratified |
| Gabon | 1993-01-13 | 2000-09-08 | — | Ratified |
| Gambia | 1993-01-13 | 1998-05-19 | — | Ratified |
| Georgia | 1993-01-14 | 1995-11-27 | — | Ratified |
| Germany | 1993-01-13 | 1994-08-12 | — | Ratified |
| Ghana | 1993-01-14 | 1997-07-09 | — | Ratified |
| Greece | 1993-01-13 | 1994-12-22 | — | Ratified |
| Grenada | 1997-04-09 | 2005-06-03 | — | Ratified |
| Guatemala | 1993-01-14 | 2003-02-12 | — | Ratified |
| Guinea | 1993-01-14 | 1997-06-09 | — | Ratified |
| Guinea-Bissau | 1993-01-14 | 2008-05-20 | — | Ratified |
| Guyana | 1993-10-06 | 1997-09-12 | — | Ratified |
| Haiti | 1993-01-14 | 2006-02-22 | — | Ratified |
| Holy SeeNon-UN member | 1993-01-14 | 1999-05-12 | — | Ratified |
| Honduras | 1993-01-13 | 2005-08-29 | — | Ratified |
| Hungary | 1993-01-13 | 1996-10-31 | — | Ratified |
| Iceland | 1993-01-13 | 1997-04-28 | — | Ratified |
| India | 1993-01-14 | 1996-09-03 | — | Ratified |
| Indonesia | 1993-01-13 | 1998-11-12 | — | Ratified |
| Iran | 1993-01-13 | 1997-11-03 | — | Ratified |
| Iraq | — | 2009-01-13(Accession) | — | Ratified |
| Ireland | 1993-01-14 | 1996-06-24 | — | Ratified |
| Italy | 1993-01-13 | 1995-12-08 | — | Ratified |
| Jamaica | 1997-04-18 | 2000-09-08 | — | Ratified |
| Japan | 1993-01-13 | 1995-09-15 | — | Ratified |
| Jordan | — | 1997-10-29(Accession) | — | Ratified |
| Kazakhstan | 1993-01-14 | 2000-03-23 | — | Ratified |
| Kenya | 1993-01-15 | 1997-04-25 | — | Ratified |
| Kiribati | — | 2000-09-07(Accession) | — | Ratified |
| Kuwait | 1993-01-27 | 1997-05-29 | — | Ratified |
| Kyrgyzstan | 1993-02-22 | 2003-09-29 | — | Ratified |
| Lao People's Democratic Republic | 1993-05-13 | 1997-02-25 | — | Ratified |
| Latvia | 1993-05-06 | 1996-07-23 | — | Ratified |
| Lebanon | — | 2008-11-20(Accession) | — | Ratified |
| Lesotho | 1994-12-07 | 1994-12-07 | — | Ratified |
| Liberia | 1993-01-15 | 2006-02-23 | — | Ratified |
| Libya | — | 2004-01-06(Accession) | — | Ratified |
| Liechtenstein | 1993-07-21 | 1999-11-24 | — | Ratified |
| Lithuania | 1993-01-13 | 1998-04-15 | — | Ratified |
| Luxembourg | 1993-01-13 | 1997-04-15 | — | Ratified |
| Madagascar | 1993-01-15 | 2004-10-20 | — | Ratified |
| Malawi | 1993-01-14 | 1998-06-11 | — | Ratified |
| Malaysia | 1993-01-13 | 2000-04-20 | — | Ratified |
| Maldives | 1993-10-04 | 1994-05-31 | — | Ratified |
| Mali | 1993-01-13 | 1997-04-28 | — | Ratified |
| Malta | 1993-01-13 | 1997-04-28 | — | Ratified |
| Marshall Islands | 1993-01-13 | 2004-05-19 | — | Ratified |
| Mauritania | 1993-01-13 | 1998-02-09 | — | Ratified |
| Mauritius | 1993-01-14 | 1993-02-09 | — | Ratified |
| Mexico | 1993-01-13 | 1994-08-29 | — | Ratified |
| Micronesia | 1993-01-13 | 1999-06-21 | — | Ratified |
| Monaco | 1993-01-13 | 1995-06-01 | — | Ratified |
| Mongolia | 1993-01-14 | 1995-01-17 | — | Ratified |
| Montenegro | — | 2006-10-23(Succession) | — | Ratified |
| Morocco | 1993-01-13 | 1995-12-28 | — | Ratified |
| Mozambique | — | 2000-08-15(Accession) | — | Ratified |
| Myanmar | 1993-01-14 | 2015-07-08 | — | Ratified |
| Namibia | 1993-01-13 | 1995-11-24 | — | Ratified |
| Nauru | 1993-01-13 | 2001-11-12 | — | Ratified |
| Nepal | 1993-01-19 | 1997-11-18 | — | Ratified |
| Netherlands | 1993-01-14 | 1995-06-30 | — | Ratified |
| New Zealand | 1993-01-14 | 1996-07-15 | — | Ratified |
| Nicaragua | 1993-03-09 | 1999-11-05 | — | Ratified |
| Niger | 1993-01-14 | 1997-04-09 | — | Ratified |
| Nigeria | 1993-01-13 | 1999-05-20 | — | Ratified |
| NiueNon-UN member | — | 2005-04-21(Accession) | — | Ratified |
| North Macedonia | — | 1997-06-20(Accession) | — | Ratified |
| Norway | 1993-01-13 | 1994-04-07 | — | Ratified |
| Oman | 1993-02-02 | 1995-02-08 | — | Ratified |
| Pakistan | 1993-01-13 | 1997-10-28 | — | Ratified |
| Palau | — | 2003-02-03(Accession) | — | Ratified |
| Panama | 1993-06-16 | 1998-10-07 | — | Ratified |
| Papua New Guinea | 1993-01-14 | 1996-04-17 | — | Ratified |
| Paraguay | 1993-01-14 | 1994-12-01 | — | Ratified |
| Peru | 1993-01-14 | 1995-07-20 | — | Ratified |
| Philippines | 1993-01-13 | 1996-12-11 | — | Ratified |
| Poland | 1993-01-13 | 1995-08-23 | — | Ratified |
| Portugal | 1993-01-13 | 1996-09-10 | — | Ratified |
| Qatar | 1993-02-01 | 1997-09-03 | — | Ratified |
| Republic of Korea | 1993-01-14 | 1997-04-28 | — | Ratified |
| Moldova | 1993-01-13 | 1996-07-08 | — | Ratified |
| Romania | 1993-01-13 | 1995-02-15 | — | Ratified |
| Russian Federation | 1993-01-13 | 1997-11-05 | — | Ratified |
| Rwanda | 1993-05-17 | 2004-03-31 | — | Ratified |
| Samoa | 1993-01-14 | 2002-09-27 | — | Ratified |
| San Marino | 1993-01-13 | 1999-12-10 | — | Ratified |
| Sao Tome and Principe | — | 2003-09-09(Acceptance) | — | Ratified |
| Saudi Arabia | 1993-01-20 | 1996-08-09 | — | Ratified |
| Senegal | 1993-01-13 | 1998-07-20 | — | Ratified |
| Serbia | — | 2000-04-20(Accession) | — | Ratified |
| Seychelles | 1993-01-15 | 1993-04-07 | — | Ratified |
| Sierra Leone | 1993-01-15 | 2004-09-30 | — | Ratified |
| Singapore | 1993-01-14 | 1997-05-21 | — | Ratified |
| Slovakia | 1993-01-14 | 1995-10-27 | — | Ratified |
| Slovenia | 1993-01-14 | 1997-06-11 | — | Ratified |
| Solomon Islands | — | 2004-09-23(Accession) | — | Ratified |
| Somalia | — | 2013-05-29(Accession) | — | Ratified |
| South Africa | 1993-01-14 | 1995-09-13 | — | Ratified |
| Spain | 1993-01-13 | 1994-08-03 | — | Ratified |
| Sri Lanka | 1993-01-14 | 1994-08-19 | — | Ratified |
| Saint Kitts and Nevis | 1994-03-16 | 2004-05-21 | — | Ratified |
| Saint Lucia | 1993-03-29 | 1997-04-09 | — | Ratified |
| Saint Vincent and the Grenadines | 1993-09-20 | 2002-09-18 | — | Ratified |
| State of PalestineNon-UN member | — | 2017-12-29(Accession) | — | Ratified |
| Sudan | — | 1999-05-24(Accession) | — | Ratified |
| Suriname | 1997-04-28 | 1997-04-28 | — | Ratified |
| Sweden | 1993-01-13 | 1993-06-17 | — | Ratified |
| Switzerland | 1993-01-14 | 1995-03-10 | — | Ratified |
| Syrian Arab Republic | — | 2013-09-14(Accession) | — | Ratified |
| Tajikistan | 1993-01-14 | 1995-01-11 | — | Ratified |
| Thailand | 1993-01-14 | 2002-12-10 | — | Ratified |
| Timor-Leste | — | 2003-05-07(Accession) | — | Ratified |
| Togo | 1993-01-13 | 1997-04-23 | — | Ratified |
| Tonga | — | 2003-05-29(Accession) | — | Ratified |
| Trinidad and Tobago | — | 1997-06-24(Accession) | — | Ratified |
| Tunisia | 1993-01-13 | 1997-04-15 | — | Ratified |
| Turkmenistan | 1993-10-12 | 1994-09-29 | — | Ratified |
| Tuvalu | — | 2004-01-19(Accession) | — | Ratified |
| Türkiye | 1993-01-14 | 1997-05-12 | — | Ratified |
| Uganda | 1993-01-14 | 2001-11-30 | — | Ratified |
| Ukraine | 1993-01-13 | 1998-10-16 | — | Ratified |
| United Arab Emirates | 1993-02-02 | 2000-11-28 | — | Ratified |
| United Kingdom | 1993-01-13 | 1996-05-13 | — | Ratified |
| United Republic of Tanzania | 1994-02-25 | 1998-06-25 | — | Ratified |
| United States of America | 1993-01-13 | 1997-04-25 | — | Ratified |
| Uruguay | 1993-01-15 | 1994-10-06 | — | Ratified |
| Uzbekistan | 1995-11-24 | 1996-07-23 | — | Ratified |
| Vanuatu | — | 2005-09-16(Accession) | — | Ratified |
| Venezuela | 1993-01-14 | 1997-12-03 | — | Ratified |
| Viet Nam | 1993-01-13 | 1998-09-30 | — | Ratified |
| Yemen | 1993-02-08 | 2000-10-02 | — | Ratified |
| Zambia | 1993-01-13 | 2001-02-09 | — | Ratified |
| Zimbabwe | 1993-01-13 | 1997-04-25 | — | Ratified |