| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Signature | 20/04/1929 | |
| ALGERIA | Accession | 12/08/1964 | 15/06/1965 |
| ANDORRA | Accession | 03/10/2007 | 01/01/2008 |
| ANDORRA | Reservation | 03/10/2007 | 01/01/2008 |
| Antigua | Extension | 13/10/1960 | 11/01/1961 |
| Antilles And Suriname | Extension | 22/03/1954 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Accession | 05/01/1982 | 05/04/1982 |
| AUSTRIA | Signature | 20/04/1929 | |
| AUSTRIA | Ratification | 25/06/1931 | |
| AUSTRIA | Notification | 09/02/2006 | |
| Bahamas | Extension | 13/10/1960 | 11/01/1961 |
| BAHAMAS | Succession | 09/07/1975 | |
| Barbados | Extension | 07/03/1963 | 05/06/1963 |
| Basutoland | Extension | 13/10/1960 | 11/01/1961 |
| Bechuanaland | Extension | 13/10/1960 | 11/01/1961 |
| BELARUS | Succession | 23/08/2001 | 25/12/1991 |
| BELGIUM | Signature | 20/04/1929 | |
| BELGIUM | Ratification | 06/06/1932 | |
| BELGIUM | Notification | 02/03/2006 | |
| Bermuda | Extension | 13/10/1960 | 11/01/1961 |
| BOSNIA AND HERZEGOVINA | Accession | 27/04/2009 | 26/07/2009 |
| BRAZIL | Accession | 01/07/1935 | |
| British Guiana | Extension | 13/10/1960 | 11/01/1961 |
| British Honduras | Extension | 13/10/1960 | 11/01/1961 |
| British Virgin Islands | Extension | 13/10/1960 | 11/01/1961 |
| BULGARIA | Signature | 20/04/1929 | |
| BULGARIA | Ratification | 22/05/1930 | |
| BULGARIA | Notification | 05/11/2007 | 05/11/2007 |
| CEYLON | Accession | 02/06/1967 | |
| CHINA | Signature | 20/04/1929 | |
| COLOMBIA | Signature | 20/04/1929 | |
| COLOMBIA | Ratification | 09/05/1932 | |
| CROATIA | Succession | 30/12/2003 | 08/10/1991 |
| CUBA | Signature | 20/04/1929 | |
| CUBA | Ratification | 13/06/1933 | |
| CYPRUS | Accession | 10/06/1965 | |
| CYPRUS | Notification | 09/02/2006 | |
| CZECH REPUBLIC | Succession | 09/02/1996 | 01/01/1993 |
| CZECH REPUBLIC | Notification | 09/02/2006 | |
| CZECHOSLOVAKIA | Signature | 20/04/1929 | |
| CZECHOSLOVAKIA | Ratification | 12/09/1931 | |
| DAHOMEY | Accession | 17/03/1966 | |
| DANZIG | Signature | 20/04/1929 | |
| DANZIG | Ratification | 01/03/1935 | |
| DANZIG | Reservation | 01/03/1935 | |
| DENMARK | Signature | 20/04/1929 | |
| DENMARK | Ratification | 19/02/1931 | 01/01/1933 |
| DENMARK | Reservation | 19/02/1931 | |
| DENMARK | Notification | 09/02/2006 | |
| Dominica | Extension | 13/10/1960 | 11/01/1961 |
| ECUADOR | Accession | 25/09/1937 | |
| EGYPT | Accession | 15/07/1957 | |
| ESTONIA | Accession | 30/08/1930 | |
| ESTONIA | Notification | 09/02/2006 | |
| Falkland Islands | Extension | 13/10/1960 | 11/01/1961 |
| Fiji | Extension | 13/10/1960 | 11/01/1961 |
| FIJI | Succession | 25/03/1971 | |
| FINLAND | Accession | 25/09/1936 | |
| FINLAND | Notification | 09/02/2006 | |
| FRANCE | Signature | 20/04/1929 | |
| FRANCE | Ratification | 28/03/1958 | |
| FRANCE | Notification | 09/02/2006 | |
| GABON | Accession | 11/08/1964 | |
| GEORGIA | Accession | 20/07/2000 | 18/10/2000 |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 01/01/1905 | |
| GERMAN DEMOCRATIC REPUBLIC | Re-Application | 08/03/1958 | 06/06/1958 |
| GERMANY | Signature | 20/04/1929 | |
| GERMANY | Ratification | 03/10/1933 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/01/1954 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 29/01/1954 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/03/1954 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 15/06/1954 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 02/03/1976 | |
| GERMANY FEDERAL REPUBLIC | Notification | 09/02/2006 | |
| GHANA | Accession | 09/07/1964 | |
| Gibraltar | Extension | 13/10/1960 | 11/01/1961 |
| Gilbert And Ellice Islands | Extension | 13/10/1960 | 11/01/1961 |
| GREECE | Signature | 20/04/1929 | |
| GREECE | Ratification | 19/05/1931 | |
| GREECE | Notification | 09/02/2006 | |
| Grenada | Extension | 13/10/1960 | 11/01/1961 |
| HUNGARY | Signature | 20/04/1929 | |
| HUNGARY | Ratification | 14/06/1933 | |
| HUNGARY | Notification | 08/01/2007 | |
| INDIA | Signature | 20/04/1929 | |
| INDONESIA | Accession | 03/08/1982 | 01/11/1982 |
| INDONESIA | Reservation | 03/08/1982 | |
| IRAQ | Accession | 14/05/1965 | |
| IRELAND, REPUBLIC OF | Notification | 13/09/2001 | |
| IRELAND, REPUBLIC OF | Notification | 09/02/2006 | |
| ISRAEL | Accession | 10/02/1965 | |
| ITALY | Signature | 20/04/1929 | |
| ITALY | Ratification | 27/12/1935 | |
| ITALY | Notification | 09/02/2006 | |
| IVORY COAST | Accession | 25/05/1964 | |
| Jamaica | Extension | 13/10/1960 | 11/01/1961 |
| JAPAN | Signature | 20/04/1929 | |
| Kenya | Extension | 13/10/1960 | 11/01/1961 |
| KENYA | Succession | 10/11/1977 | 08/02/1978 |
| KUWAIT | Accession | 09/12/1968 | |
| LATVIA | Accession | 22/07/1939 | |
| LATVIA | Notification | 09/06/2005 | |
| LATVIA | Notification | 09/02/2006 | |
| LATVIA | Notification | 31/08/2010 | |
| LEBANON | Accession | 06/10/1966 | 04/01/1967 |
| LIBERIA | Accession | 16/09/2005 | 15/12/2005 |
| LITHUANIA | Accession | 02/04/2004 | 01/07/2004 |
| LITHUANIA | Notification | 02/04/2004 | 01/01/1900 |
| LUXEMBOURG | Signature | 20/04/1929 | |
| LUXEMBOURG | Ratification | 14/03/2002 | 12/06/2002 |
| LUXEMBOURG | Declaration | 14/03/2002 | |
| LUXEMBOURG | Notification | 09/02/2006 | |
| MACEDONIA THE FYR OF | Succession | 07/03/2005 | 17/11/1991 |
| MALAWI | Accession | 18/11/1965 | |
| MALAYSIA | Accession | 04/07/1972 | 02/10/1972 |
| MALI | Accession | 06/01/1970 | 06/04/1970 |
| Mauritius | Extension | 13/10/1960 | 11/01/1961 |
| MAURITIUS | Succession | 18/07/1969 | 12/03/1968 |
| MEXICO | Accession | 30/03/1936 | |
| MONACO | Signature | 20/04/1929 | |
| MONACO | Ratification | 21/10/1931 | |
| Montserrat | Extension | 13/10/1960 | 11/01/1961 |
| MOROCCO | Accession | 10/10/1975 | 02/08/1976 |
| MOROCCO | Reservation | 04/05/1976 | 02/08/1976 |
| NETHERLANDS THE | Signature | 20/04/1929 | |
| NETHERLANDS THE | Ratification | 30/04/1932 | |
| NETHERLANDS THE | Declaration | 22/03/1954 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | |
| NETHERLANDS THE | Notification | 09/02/2006 | |
| NIGER | Accession | 05/05/1969 | |
| North Borneo | Extension | 13/10/1960 | 11/01/1961 |
| NORWAY | Signature | 20/04/1929 | |
| NORWAY | Ratification | 16/03/1931 | |
| PANAMA | Signature | 20/04/1929 | |
| PERU | Accession | 11/05/1970 | 09/08/1970 |
| PHILIPPINES | Accession | 05/05/1971 | 03/08/1971 |
| POLAND | Signature | 20/04/1929 | |
| POLAND | Ratification | 15/06/1934 | |
| POLAND | Notification | 09/02/2006 | |
| PORTUGAL | Signature | 20/04/1929 | |
| PORTUGAL | Ratification | 18/09/1930 | |
| PORTUGAL | Notification | 09/02/2006 | |
| Rhodesia And Nyasaland | Extension | 13/10/1960 | 11/01/1961 |
| ROUMANIA | Signature | 20/04/1929 | |
| ROUMANIA | Ratification | 10/11/1930 | |
| ROUMANIA | Ratification | 07/03/1939 | |
| SAN MARINO | Accession | 18/10/1967 | |
| Sarawak | Extension | 13/10/1960 | 11/01/1961 |
| SENEGAL | Accession | 25/08/1965 | |
| Sierra Leone | Extension | 13/10/1960 | 11/01/1961 |
| Singapore | Extension | 13/10/1960 | 11/01/1961 |
| SINGAPORE | Succession | 12/02/1979 | |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | 01/01/1993 |
| SLOVENIA | Succession | 09/05/2006 | 25/06/1991 |
| SLOVENIA | Notification | 25/07/2006 | |
| SLOVENIA | Notification | 02/02/2007 | |
| Solomon Islands | Extension | 13/10/1960 | 11/01/1961 |
| SOLOMON ISLANDS | Succession | 03/09/1981 | |
| SOUTH AFRICA | Accession | 29/08/1967 | |
| SOVIET UNION | Signature | 20/04/1929 | |
| SOVIET UNION | Ratification | 13/07/1931 | |
| SPAIN | Signature | 20/04/1929 | |
| SPAIN | Ratification | 28/04/1930 | |
| SPAIN | Notification | 12/06/2006 | |
| St Christopher, Nevis and Anguilla | Extension | 13/10/1960 | 11/01/1961 |
| St Lucia | Extension | 13/10/1960 | 11/01/1961 |
| St Vincent | Extension | 31/10/1960 | 11/01/1961 |
| Swaziland | Extension | 13/10/1960 | 11/01/1961 |
| SWEDEN | Accession | 15/03/2001 | 13/06/2001 |
| SWITZERLAND | Signature | 20/04/1929 | |
| SWITZERLAND | Ratification | 30/12/1948 | 01/04/1949 |
| SYRIA | Succession | 14/08/1964 | 20/06/1959 |
| Tanganyika | Extension | 13/10/1960 | 11/01/1961 |
| THAILAND | Accession | 06/06/1963 | |
| The Gambia | Extension | 13/10/1960 | 11/01/1961 |
| TOGO | Accession | 03/10/1978 | 01/01/1979 |
| Trinidad | Extension | 13/10/1960 | 11/01/1961 |
| TURKEY | Accession | 21/01/1937 | |
| Uganda | Extension | 13/10/1960 | 11/01/1961 |
| UGANDA | Succession | 15/04/1965 | |
| UNITED KINGDOM | Signature | 20/04/1929 | |
| UNITED KINGDOM | Ratification | 28/07/1959 | |
| UNITED KINGDOM | Declaration | 13/10/1960 | 11/01/1961 |
| UNITED KINGDOM | Notification | 09/02/2006 | |
| UNITED KINGDOM | Notification | 09/02/2006 | |
| UNITED STATES OF AMERICA | Signature | 20/04/1929 | |
| UPPER VOLTA | Accession | 08/12/1964 | |
| VATICAN CITY | Accession | 01/03/1965 | |
| VIETNAM | Accession | 03/12/1964 | |
| YUGOSLAVIA | Signature | 20/04/1929 | |
| YUGOSLAVIA | Ratification | 24/11/1930 | |
| Zanzibar | Extension | 13/10/1960 | 11/01/1961 |
| ZIMBABWE | Succession | 01/12/1998 | 18/04/1980 |