Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare

Signed at Geneva: 17 June 1925 
 
Entered into force: 8 February 1928
 
Depositary: Government of France
 
State Signature Deposit Deposit Type
Colombia 24 November 2015  
Accession
The former Yugoslav Republic of Macedonia 20 August 2015  
Accession
Republic of Moldova 4 November 2010  
Accession
Costa Rica 22 July 2009  
Accession
Slovenia 8 April 2008  
Accession
El Salvador 17 June 1925  
26 February 2008  
Ratification
Croatia 16 August 2006  
Accession
Serbia 3 June 2006  
Succession
Ukraine 15 July 2003  
Succession
Saint Vincent and the Grenadines 8 May 1999  
Succession
Slovakia 28 October 1997 *
Succession
Czech Republic 17 September 1993 *
Succession
Algeria 27 January 1992 *
Accession
Liechtenstein 6 September 1991  
Accession
Swaziland 23 July 1991  
Accession
Cape Verde 16 May 1991  
Accession
Angola 8 November 1990 *
Accession
Nicaragua 17 June 1925  
5 October 1990 *
Ratification
Albania 20 December 1989  
Accession
Saint Kitts and Nevis 26 October 1989  
Succession
Cameroon 20 July 1989  
Accession
Lao People's Democratic Republic 20 May 1989  
Accession
Guinea-Bissau 20 May 1989  
Accession
Grenada 20 May 1989  
Succession
Equatorial Guinea 20 May 1989  
Accession
Bangladesh 20 May 1989 *
Accession
Republic of Korea 4 January 1989 *
Accession
Saint Lucia 14 December 1988  
Succession
Bahrain 9 December 1988 *
Accession
Democratic People's Republic of Korea 8 December 1988 *
Accession
Antigua and Barbuda 27 April 1988  
Succession
Yemen 9 December 1986 *
Accession
Benin 9 December 1986  
Accession
Afghanistan 9 December 1986  
Accession
Peru 21 May 1985  
Accession
Guatemala 3 May 1983  
Accession
Cambodia 15 March 1983 *
Accession
Solomon Islands 1 June 1981 *
Succession
Sudan 17 December 1980  
Accession
Viet Nam 15 December 1980 *
Accession
Papua New Guinea 11 December 1980 *
Succession
Bolivia (Plurinational State of) 19 February 1979  
Accession
Bhutan 19 February 1979  
Accession
Senegal 20 July 1977  
Accession
Uruguay 17 June 1925  
12 April 1977  
Ratification
Jordan 20 March 1977 *
Accession
Qatar 18 October 1976  
Accession
Barbados 16 July 1976 *
Succession
United States of America 17 June 1925  
10 April 1975 *
Ratification
Philippines 8 June 1973  
Accession
Fiji 21 March 1973 *
Succession
Lesotho 15 March 1973  
Succession
Libya 29 December 1971 *
Accession
Kuwait 15 December 1971 *
Accession
Tonga 19 July 1971  
Succession
Togo 5 April 1971  
Accession
Burkina Faso 3 March 1971  
Accession
Saudi Arabia 27 January 1971  
Accession
Indonesia 13 January 1971  
Succession
Mauritius 23 December 1970  
Succession
Malaysia 10 December 1970  
Accession
Dominican Republic 8 December 1970  
Accession
Panama 4 December 1970 *
Accession
Trinidad and Tobago 24 November 1970  
Succession
Morocco 13 October 1970  
Accession
Malta 9 October 1970  
Succession
Ecuador 16 September 1970  
Accession
Malawi 14 September 1970  
Accession
Brazil 17 June 1925  
28 August 1970  
Ratification
Central African Republic 30 July 1970  
Accession
Jamaica 28 July 1970  
Succession
Côte d'Ivoire 27 July 1970  
Accession
Kenya 6 July 1970  
Accession
Japan 17 June 1925  
21 May 1970  
Ratification
Argentina 12 May 1969  
Accession
Nepal 9 May 1969  
Accession
Lebanon 17 April 1969  
Accession
Israel 20 February 1969 *
Accession
Syrian Arab Republic 17 December 1968 *
Accession
Mongolia 6 December 1968 *
Accession
Nigeria 15 October 1968 *
Accession
Iceland 2 November 1967  
Accession
Tunisia 12 July 1967  
Accession
Madagascar 21 June 1967  
Accession
Ghana 3 May 1967  
Accession
Sierra Leone 20 March 1967  
Accession
Niger 18 March 1967  
Succession
Monaco 6 January 1967  
Accession
Maldives 19 December 1966  
Accession
Cyprus 21 November 1966  
Succession
Gambia 11 November 1966  
Succession
Holy See 18 October 1966  
Accession
Cuba 24 June 1966  
Accession
Uganda 2 April 1965  
Accession
Rwanda 21 March 1964  
Succession
United Republic of Tanzania 28 February 1963  
Accession
Pakistan 3 June 1960 *
Succession
Sri Lanka 18 December 1953  
Accession
Hungary 27 August 1952  
Accession
China 13 July 1952 *
Succession
Luxembourg 17 June 1925  
1 September 1936  
Ratification
Ethiopia 17 June 1925  
7 October 1935  
Ratification
Chile 17 June 1925  
2 July 1935 *
Ratification
Bulgaria 17 June 1925  
7 March 1934 *
Ratification
Paraguay 22 October 1933 *
Accession
Lithuania 17 June 1925  
15 June 1933  
Ratification
Norway 17 June 1925  
27 July 1932  
Ratification
Switzerland 17 June 1925  
12 July 1932  
Ratification
Mexico 15 March 1932  
Accession
Estonia 17 June 1925  
28 August 1931 *
Ratification
Thailand 17 June 1925  
6 June 1931  
Ratification
Latvia 17 June 1925  
3 June 1931  
Ratification
Greece 17 June 1925  
30 May 1931  
Ratification
Iraq 7 April 1931 *
Accession
Netherlands 17 June 1925  
31 October 1930 *
Ratification
Ireland 18 August 1930 *
Accession
Portugal 17 June 1925  
1 July 1930 *
Ratification
South Africa 24 May 1930 *
Accession
Canada 17 June 1925  
6 May 1930 *
Ratification
Denmark 17 June 1925  
5 May 1930  
Ratification
Sweden 17 June 1925  
25 April 1930  
Ratification
United Kingdom of Great Britain and Northern Ireland 17 June 1925  
9 April 1930 *
Ratification
India 17 June 1925  
9 April 1930 *
Ratification
New Zealand 22 January 1930 *
Accession
Australia 22 January 1930 *
Accession
Turkey 17 June 1925  
5 October 1929  
Ratification
Romania 17 June 1925  
23 August 1929 *
Ratification
Spain 17 June 1925  
22 August 1929 *
Ratification
Iran (Islamic Republic of) 3 August 1929  
Accession
Finland 17 June 1925  
26 June 1929  
Ratification
Germany 17 June 1925  
25 April 1929  
Ratification
Poland 17 June 1925  
4 February 1929  
Ratification
Egypt 17 June 1925  
6 December 1928  
Ratification
Belgium 17 June 1925  
4 December 1928 *
Ratification
Austria 17 June 1925  
9 May 1928  
Ratification
Russian Federation 5 April 1928 *
Ratification
Italy 17 June 1925  
3 April 1928  
Ratification
Venezuela (Bolivarian Republic of) 17 June 1925  
8 February 1928  
Ratification
Liberia 2 April 1927  
Accession
France 17 June 1925  
10 May 1926 *
Ratification

* A note, statement, declaration, or reservation, is attached to the signature or depository action. Click on the action date to view the details.

  Glossary of treaty-related terms

Number of Signatory States: 36
Number of States Parties: 140