| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Ratification | 17/03/1932 | |
| Antigua | Application | 04/06/1962 | |
| ARGENTINE REPUBLIC | Ratification | 30/11/1933 | |
| AUSTRIA | Ratification | 26/02/1936 | |
| Bahamas | Application | 04/06/1962 | |
| BAHAMAS | Succession | 25/05/1976 | |
| Barbados | Application | 04/06/1962 | |
| BARBADOS | Succession | 08/05/1967 | |
| BARBADOS | Denunciation | 04/01/2000 | 04/01/2001 |
| Basutoland | Application | 16/06/1965 | |
| Bechuanaland | Application | 21/05/1964 | |
| Bechuanaland | Application | 10/03/1965 | |
| BELGIUM | Ratification | 12/07/1924 | |
| BELIZE | Ratification | 15/12/1983 | |
| BELIZE | Denunciation | 06/03/2000 | 06/03/2001 |
| BENIN | Ratification | 12/12/1960 | |
| Bermuda | Declaration | 03/04/1963 | |
| Bermuda | Application | 03/08/1964 | |
| BOLIVIA | Ratification | 19/07/1954 | |
| BRAZIL | Ratification | 26/04/1934 | |
| British Guiana | Application | 04/06/1962 | |
| British Honduras | Application | 04/06/1962 | |
| British Virgin Islands | Application | 05/10/1962 | |
| Brunei | Application | 26/04/1965 | |
| BULGARIA | Ratification | 14/02/1922 | |
| BULGARIA | Denunciation | 20/07/1960 | |
| CAMEROON | Ratification | 07/06/1960 | |
| CAMEROON | Ratification | 25/05/1970 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 27/10/1960 | |
| CEYLON | Ratification | 27/09/1951 | |
| CHAD | Ratification | 10/11/1960 | |
| CHILE | Ratification | 15/09/1925 | |
| COLOMBIA | Ratification | 20/06/1933 | |
| COMOROS | Ratification | 23/10/1978 | |
| CONGO, REPUBLIC OF | Ratification | 10/11/1960 | |
| CONGO, REPUBLIC OF | Denunciation | 26/11/1999 | 26/11/2000 |
| CUBA | Ratification | 06/08/1928 | |
| CZECH REPUBLIC | Ratification | 01/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Ratification | 24/08/1921 | |
| DENMARK | Ratification | 04/06/1923 | |
| DENMARK | Declaration | 31/05/1954 | |
| DJIBOUTI | Succession | 03/08/1978 | |
| Dominica | Decision Resvd. | 17/09/1964 | |
| DOMINICAN REPUBLIC | Ratification | 04/02/1933 | |
| ESTONIA | Declaration | 01/01/1905 | |
| ESTONIA | Ratification | 20/12/1922 | |
| Falkland Islands | Application | 04/06/1962 | |
| Fiji | Application | 26/06/1962 | |
| FIJI | Succession | 19/04/1974 | |
| FRANCE | Ratification | 29/04/1939 | |
| FRANCE | Declaration | 19/03/1954 | |
| French Cameroons | Extension | 19/03/1954 | |
| French Equatorial Africa | Extension | 19/03/1954 | |
| French Oceania | Extension | 19/03/1954 | |
| French Settlements In India | Extension | 19/03/1954 | |
| French Somaliland | Application | 19/03/1954 | |
| French Togoland | Extension | 19/03/1954 | |
| French West Africa | Application | 19/03/1954 | |
| GABON | Ratification | 14/10/1960 | |
| Gibraltar | Application | 04/06/1962 | |
| Gilbert & Ellice Colony | Application | 04/06/1962 | |
| GREECE | Ratification | 19/11/1920 | |
| Greenland | Extension | 31/05/1954 | |
| Grenada | Application | 27/06/1963 | |
| GRENADA | Succession | 09/07/1979 | |
| Guernsey | Application | 14/07/1921 | |
| GUINEA | Ratification | 21/01/1959 | |
| GUYANA | Ratification | 08/06/1966 | |
| HAITI | Ratification | 12/04/1957 | |
| Hong Kong | Application | 04/06/1962 | |
| INDIA | Ratification | 09/09/1955 | |
| IRELAND, REPUBLIC OF | Denunciation | 01/01/1905 | |
| IRELAND, REPUBLIC OF | Ratification | 04/09/1925 | |
| Isle of Man | Application | 14/07/1921 | |
| IVORY COAST | Ratification | 21/11/1960 | |
| JAPAN | Ratification | 07/08/1926 | |
| Jersey | Application | 14/07/1921 | |
| Kenya | Application | 04/06/1962 | |
| KENYA | Ratification | 13/01/1964 | |
| LATVIA | Ratification | 03/06/1926 | |
| LESOTHO | Ratification | 31/10/1966 | |
| LUXEMBOURG | Ratification | 16/04/1928 | |
| Madagascar | Extension | 19/03/1954 | |
| Madagascar | Denunciation | 31/05/2000 | 31/05/2001 |
| MALAGASY REPUBLIC | Ratification | 01/11/1960 | |
| MALAYSIA | Ratification | 03/03/1964 | |
| MALI | Ratification | 21/06/1960 | |
| Malta | Application | 26/06/1962 | |
| MALTA | Succession | 04/01/1965 | |
| MAURITANIA | Ratification | 20/06/1961 | |
| Mauritius | Application | 04/06/1962 | |
| MAURITIUS | Ratification | 02/12/1969 | |
| Montserrat | Application | 04/06/1962 | |
| NETHERLANDS THE | Ratification | 21/07/1928 | |
| Netherlands West Indies | Decision Resvd. | 24/02/1964 | |
| New Caledonia | Extension | 19/03/1954 | |
| NICARAGUA | Ratification | 12/04/1934 | |
| NICARAGUA | Denunciation | 02/11/1981 | |
| NIGER | Ratification | 27/02/1961 | |
| Northern Rhodesia | Application | 15/01/1963 | |
| NORWAY | Ratification | 07/07/1937 | |
| NORWAY | Denunciation | 08/07/1980 | 08/07/1981 |
| POLAND | Ratification | 21/06/1924 | |
| ROMANIA | Ratification | 13/06/1921 | |
| SAINT LUCIA | Succession | 14/05/1980 | |
| Seychelles | Application | 04/09/1962 | |
| SEYCHELLES | Succession | 06/02/1978 | |
| SEYCHELLES | Denunciation | 07/03/2000 | 07/03/2001 |
| SIERRA LEONE | Ratification | 15/06/1961 | |
| Singapore | Application | 05/07/1962 | |
| SINGAPORE | Succession | 25/10/1965 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| Solomon Islands | Application | 04/06/1962 | |
| Southern Rhodesia | Decision Resvd. | 20/11/1963 | |
| SPAIN | Ratification | 29/09/1932 | |
| St Christopher, Nevis and Anguilla | Application | 29/05/1963 | |
| St Helena | Application | 05/10/1962 | |
| St Lucia | Application | 04/06/1962 | |
| St Pierre and Miquelon | Extension | 19/03/1954 | |
| St Vincent | Application | 23/08/1962 | |
| ST VINCENT AND THE GRENADINES | Ratification | 21/10/1998 | 31/05/1995 |
| SWAZILAND | Succession | 26/04/1978 | |
| SWITZERLAND | Ratification | 09/10/1922 | |
| The Gambia | Application | 05/10/1962 | |
| TOGO | Ratification | 07/06/1960 | |
| Uganda | Application | 04/06/1962 | |
| UGANDA | Ratification | 04/06/1963 | |
| UNITED KINGDOM | Ratification | 14/07/1921 | |
| UNITED KINGDOM | Declaration | 14/07/1921 | |
| UNITED KINGDOM | Declaration | 04/06/1962 | |
| UNITED KINGDOM | Declaration | 26/06/1962 | |
| UNITED KINGDOM | Declaration | 05/07/1962 | |
| UNITED KINGDOM | Declaration | 23/08/1962 | |
| UNITED KINGDOM | Declaration | 05/10/1962 | |
| UNITED KINGDOM | Declaration | 15/01/1963 | |
| UNITED KINGDOM | Declaration | 18/02/1963 | |
| UNITED KINGDOM | Declaration | 03/04/1963 | |
| UNITED KINGDOM | Declaration | 29/05/1963 | |
| UNITED KINGDOM | Declaration | 27/06/1963 | |
| UNITED KINGDOM | Declaration | 20/11/1963 | |
| UNITED KINGDOM | Declaration | 24/02/1964 | |
| UNITED KINGDOM | Declaration | 21/05/1964 | |
| UNITED KINGDOM | Declaration | 03/08/1964 | |
| UNITED KINGDOM | Declaration | 17/09/1964 | |
| UNITED KINGDOM | Declaration | 10/03/1965 | |
| UNITED KINGDOM | Declaration | 26/04/1965 | |
| UNITED KINGDOM | Declaration | 16/06/1965 | |
| UNITED KINGDOM | Declaration | 08/05/1967 | |
| UNITED KINGDOM | Denunciation | 07/06/2000 | 07/06/2001 |
| UPPER VOLTA | Ratification | 21/11/1960 | |
| URUGUAY | Ratification | 06/06/1933 | |
| URUGUAY | Denunciation | 17/10/1955 | |
| VENEZUELA | Ratification | 20/11/1944 | |
| VIETNAM | Ratification | 06/06/1953 | |
| VIETNAM, SOCIALIST REP OF | Ratification | 03/10/1994 | 03/10/1995 |
| YUGOSLAVIA | Ratification | 01/04/1927 | |
| ZAMBIA | Succession | 02/12/1964 | |
| Zanzibar | Application | 04/06/1962 | |