| Country | Action | Action Date | Effective Date |
|---|
| Aden Colony | Extension | 24/02/1938 | |
| Aden Protectorate | Extension | 14/09/1938 | |
| AFGHANISTAN | Accession | 20/02/1969 | 21/05/1969 |
| Akrotiri & Dhekelia | Extension | 03/12/1934 | 03/03/1935 |
| ALGERIA | Succession | 02/06/1964 | 31/08/1964 |
| ANGOLA | Adherence | 10/03/1998 | 08/06/1998 |
| Antigua | Extension | 03/12/1934 | 03/03/1935 |
| Antilles | Extension | 27/12/1985 | 01/01/1986 |
| ARGENTINA | Accession | 21/03/1952 | 19/06/1952 |
| ARMENIA | Accession | 25/11/1998 | 23/02/1999 |
| Aruba | Extension | 27/12/1985 | 01/01/1986 |
| AUSTRALIA | Signature | 12/10/1929 | |
| AUSTRALIA | Ratification | 01/08/1935 | 30/10/1935 |
| AUSTRALIA | Declaration | 01/08/1935 | |
| AUSTRALIA | Declaration | 01/09/1955 | |
| AUSTRIA | Signature | 12/10/1929 | |
| AUSTRIA | Ratification | 28/09/1961 | 27/12/1961 |
| Bahamas | Extension | 03/12/1934 | 03/03/1935 |
| BAHAMAS | Succession | 15/05/1975 | |
| BAHRAIN | Accession | 12/03/1998 | 10/06/1998 |
| BANGLADESH | Succession | 13/02/1979 | 01/03/1979 |
| Barbados | Extension | 03/12/1934 | 03/03/1935 |
| BARBADOS | Succession | 08/01/1970 | 01/03/1970 |
| Basutoland | Extension | 02/09/1952 | |
| Bechuanaland | Extension | 02/09/1952 | |
| Belgian Congo | Extension | 13/07/1936 | 11/10/1936 |
| BELGIUM | Signature | 31/01/1930 | |
| BELGIUM | Ratification | 13/07/1936 | 11/10/1936 |
| BELGIUM | Declaration | 13/07/1936 | |
| BELGIUM | Declaration | 25/06/1953 | |
| BELGIUM | Reservation | 01/09/1955 | |
| BENIN | Succession | 09/01/1962 | |
| Bermuda | Extension | 03/12/1934 | 03/03/1935 |
| BOLIVIA | Accession | 29/12/1998 | 29/03/1999 |
| BOSNIA AND HERZEGOVINA | Succession | 03/03/1995 | |
| BOTSWANA | Succession | 31/01/1977 | |
| BRAZIL | Signature | 12/10/1929 | |
| BRAZIL | Ratification | 02/05/1931 | 13/02/1933 |
| BRAZIL | Declaration | 20/02/1952 | |
| BRAZIL | Reservation | 01/09/1955 | |
| British Antarctic Territory | Extension | 03/12/1934 | 03/03/1935 |
| British Guiana | Extension | 03/12/1934 | 03/03/1935 |
| British Honduras | Extension | 03/12/1934 | 03/03/1935 |
| British Solomon Islands | Extension | 03/12/1934 | 03/03/1935 |
| British Virgin Islands | Extension | 03/12/1934 | 03/03/1935 |
| Brunei | Extension | 03/12/1934 | 03/03/1935 |
| BRUNEI DARUSSALAM | Succession | 28/02/1984 | |
| BULGARIA | Accession | 25/06/1949 | 23/09/1949 |
| BURKINA FASO | Succession | 09/12/1961 | 09/03/1962 |
| Burma | Extension | 24/02/1938 | |
| BYELORUSSIA S S R | Accession | 26/09/1959 | 25/12/1959 |
| Cambodia | Extension | 15/11/1932 | |
| CAMBODIA | Succession | 12/12/1996 | 12/03/1997 |
| CAMEROON | Succession | 21/08/1961 | 02/09/1961 |
| Cameroons | Extension | 03/12/1934 | 03/03/1935 |
| CANADA | Accession | 10/06/1947 | 08/09/1947 |
| CANADA | Reservation | 10/06/1947 | |
| CANADA | Declaration | 09/10/1952 | |
| CANADA | Reservation | 01/09/1955 | |
| Cayman Islands | Extension | 03/12/1934 | 03/03/1935 |
| Ceylon | Extension | 03/12/1934 | 03/03/1935 |
| CHAD | Succession | 01/01/1905 | |
| Channel Islands | Extension | 14/02/1933 | 15/05/1933 |
| CHILE | Accession | 02/03/1979 | 31/05/1979 |
| CHILE | Reservation | 02/03/1979 | |
| CHINA | Accession | 20/07/1958 | 18/10/1958 |
| CHINA | Declaration | 20/07/1958 | |
| COLOMBIA | Accession | 15/08/1966 | 13/11/1966 |
| COMOROS | Succession | 11/06/1991 | 09/09/1991 |
| CONGO, PEOPLES REPUBLIC OF | Succession | 05/01/1962 | |
| CONGO, PEOPLES REPUBLIC OF | Reservation | 19/01/1962 | |
| COSTA RICA | Accession | 10/05/1984 | 08/08/1984 |
| COTE D'IVOIRE | Succession | 07/02/1962 | |
| CROATIA | Succession | 08/07/1993 | 08/10/1991 |
| CUBA | Accession | 21/07/1964 | 19/10/1964 |
| CUBA | Reservation | 21/07/1964 | |
| Cyprus | Extension | 03/12/1934 | 03/03/1935 |
| CYPRUS | Succession | 23/04/1963 | |
| CZECH REPUBLIC | Succession | 29/11/1994 | |
| CZECHOSLOVAKIA | Signature | 31/01/1930 | |
| CZECHOSLOVAKIA | Ratification | 17/11/1934 | 01/10/1937 |
| DANZIG | Accession | 18/03/1935 | |
| DENMARK | Signature | 12/10/1929 | |
| DENMARK | Ratification | 03/07/1937 | 01/10/1937 |
| DENMARK | Declaration | 03/07/1937 | |
| DENMARK | Declaration | 09/04/1951 | |
| DENMARK | Reservation | 01/09/1955 | |
| Dominica | Extension | 03/12/1934 | 03/03/1935 |
| DOMINICAN REPUBLIC | Accession | 25/02/1972 | 25/05/1972 |
| ECUADOR | Accession | 01/12/1969 | 01/03/1970 |
| EGYPT | Accession | 06/09/1955 | 05/12/1955 |
| EGYPT | Declaration | 02/03/1959 | |
| ESTONIA | Accession | 16/03/1998 | 14/06/1998 |
| ETHIOPIA | Accession | 14/08/1950 | 12/11/1950 |
| ETHIOPIA | Reservation | 14/08/1950 | |
| Falkland Island Dependencies | Extension | 03/12/1934 | 03/03/1935 |
| Fiji | Extension | 03/12/1934 | 03/03/1935 |
| FIJI | Succession | 15/03/1972 | |
| FINLAND | Accession | 03/07/1937 | 01/10/1937 |
| FRANCE | Signature | 12/10/1929 | |
| FRANCE | Ratification | 15/11/1932 | 13/02/1933 |
| FRANCE | Declaration | 15/11/1932 | |
| FRANCE | Declaration | 17/04/1951 | |
| FRANCE | Reservation | 01/09/1955 | |
| French Cameroons | Extension | 15/11/1932 | 13/02/1933 |
| French Togoland | Extension | 15/11/1932 | 13/02/1933 |
| French UnionTerritories | Extension | 15/11/1932 | |
| GABON | Accession | 15/02/1969 | 16/05/1969 |
| GERMAN DEMOCRATIC REPUBLIC | Re-Application | 01/09/1955 | |
| GERMANY | Signature | 12/10/1929 | |
| GERMANY | Ratification | 30/09/1933 | 29/12/1933 |
| GERMANY FEDERAL REPUBLIC | Re-Application | 09/06/1951 | |
| GHANA | Accession | 11/08/1997 | 09/11/1997 |
| Gibraltar | Extension | 03/12/1934 | 03/03/1935 |
| Gilbert And Ellice Islands | Extension | 03/12/1934 | 03/03/1935 |
| Gold Coast | Extension | 03/12/1934 | 03/03/1935 |
| GREECE | Signature | 29/01/1930 | |
| GREECE | Ratification | 11/01/1938 | 11/04/1938 |
| GREECE | Declaration | 09/06/1951 | |
| Grenada | Extension | 03/12/1934 | 03/03/1935 |
| GUATEMALA | Accession | 03/02/1997 | 04/05/1997 |
| GUINEA | Accession | 11/09/1961 | 10/12/1961 |
| GUINEA, EQUATORIAL | Accession | 20/12/1988 | 19/03/1989 |
| HONDURAS | Accession | 27/06/1994 | 25/09/1994 |
| Hong Kong | Extension | 03/12/1934 | 03/03/1935 |
| HUNGARY | Accession | 29/05/1936 | 27/08/1936 |
| ICELAND | Accession | 21/08/1948 | |
| India | Extension | 20/11/1934 | |
| INDIA | Declaration | 05/04/1951 | |
| INDIA | Succession | 29/01/1970 | |
| INDONESIA | Declaration | 16/06/1950 | |
| INDONESIA | Succession | 02/02/1952 | |
| IRAN | Accession | 08/07/1975 | 06/10/1975 |
| IRAQ | Accession | 28/06/1972 | 26/09/1972 |
| IRAQ | Declaration | 28/06/1972 | |
| IRELAND, REPUBLIC OF | Accession | 20/09/1935 | 19/12/1935 |
| Irish Free State | Extension | 20/09/1935 | |
| Isle of Man | Extension | 14/02/1933 | 15/05/1933 |
| ISRAEL | Accession | 08/10/1949 | 06/01/1950 |
| ITALY | Signature | 12/10/1929 | |
| ITALY | Ratification | 14/02/1933 | 15/05/1933 |
| ITALY | Reservation | 01/09/1955 | |
| Jamaica | Extension | 03/12/1934 | 03/03/1935 |
| JAPAN | Signature | 12/10/1929 | |
| JAPAN | Ratification | 20/05/1953 | 18/08/1953 |
| JORDAN | Succession | 08/12/1969 | |
| Kenya | Extension | 03/12/1934 | 03/03/1935 |
| KENYA | Succession | 07/10/1964 | 12/12/1963 |
| KENYA | Declaration | 28/08/1968 | |
| KOREA DEMOCRATIC PEOPLE'S REPUBLIC OF | Accession | 01/03/1961 | 30/05/1961 |
| KUWAIT | Accession | 11/08/1975 | 09/11/1975 |
| LAO PEOPLE'S DEMOCRATIC REPUBLIC | Succession | 14/03/1956 | 19/07/1949 |
| LATVIA | Signature | 31/01/1930 | |
| LATVIA | Ratification | 15/11/1932 | 13/02/1933 |
| LEBANON | Succession | 10/02/1962 | 23/02/1962 |
| Leeward Islands | Extension | 03/12/1934 | 03/03/1935 |
| LESOTHO | Succession | 03/03/1975 | |
| LIBERIA | Accession | 02/05/1942 | 31/07/1942 |
| LIBYA | Accession | 16/05/1969 | 14/08/1969 |
| LIECHTENSTEIN | Accession | 09/05/1934 | 07/08/1934 |
| LUXEMBOURG | Signature | 12/10/1929 | |
| LUXEMBOURG | Ratification | 07/10/1949 | 05/01/1950 |
| LUXEMBOURG | Reservation | 01/09/1955 | |
| Macao | Extension | 20/12/1999 | |
| MACEDONIA THE FYR OF | Succession | 01/09/1994 | |
| MADAGASCAR | Succession | 17/08/1962 | |
| MALAWI | Accession | 27/10/1977 | 25/01/1978 |
| Malay States, Federated | Extension | 04/07/1936 | |
| Malay States, Unfederated | Extension | 04/07/1936 | |
| MALAYSIA | Succession | 03/09/1970 | 16/09/1963 |
| MALDIVES | Accession | 13/10/1995 | 11/01/1996 |
| MALI | Accession | 26/01/1961 | 26/04/1961 |
| Malta | Extension | 03/12/1934 | 03/03/1935 |
| MALTA | Succession | 19/02/1986 | 21/09/1964 |
| MAURITANIA | Succession | 06/08/1962 | 04/11/1962 |
| MAURITANIA | Declaration | 06/08/1962 | |
| Mauritius | Extension | 03/12/1934 | 03/03/1935 |
| MAURITIUS | Succession | 17/10/1989 | 15/01/1990 |
| MEXICO | Accession | 14/02/1933 | 15/05/1933 |
| MOLDOVA REPUBLIC OF | Accession | 20/03/1997 | 19/06/1997 |
| MONGOLIA | Accession | 30/04/1962 | 29/07/1962 |
| Montserrat | Extension | 03/12/1934 | 03/03/1935 |
| Morocco | Extension | 15/11/1932 | 13/02/1933 |
| MOROCCO | Accession | 05/01/1958 | 05/04/1958 |
| MYANMAR | Succession | 20/11/1951 | 02/01/1952 |
| MYANMAR | Declaration | 20/11/1951 | |
| Nauru | Extension | 01/08/1935 | 30/10/1935 |
| NAURU | Succession | 04/11/1970 | |
| NEPAL | Accession | 12/02/1966 | 13/05/1966 |
| NETHERLANDS THE | Signature | 31/01/1930 | |
| NETHERLANDS THE | Ratification | 01/07/1933 | |
| NETHERLANDS THE | Declaration | 04/04/1951 | |
| NETHERLANDS THE | Reservation | 01/09/1955 | |
| NETHERLANDS THE | Extension | 27/12/1985 | 01/01/1986 |
| New Guinea | Extension | 01/08/1935 | 30/10/1935 |
| New Zealand | Extension | 06/04/1937 | 05/07/1937 |
| NEW ZEALAND | Succession | 06/04/1937 | 05/07/1937 |
| Newfoundland (UK) | Extension | 06/04/1939 | |
| NIGER | Succession | 20/02/1962 | 03/08/1960 |
| Nigeria | Extension | 03/12/1934 | 03/03/1935 |
| NIGERIA | Succession | 09/10/1963 | |
| Norfolk Island | Extension | 01/08/1935 | 30/10/1935 |
| North Borneo | Extension | 04/07/1936 | |
| Northern Rhodesia | Extension | 03/12/1934 | 03/03/1935 |
| Northern Rhodesia | Declaration | 20/07/1955 | |
| NORWAY | Signature | 31/01/1930 | |
| NORWAY | Ratification | 03/07/1937 | 01/10/1937 |
| NORWAY | Reservation | 01/09/1955 | |
| Nyasaland | Extension | 03/12/1934 | 03/03/1935 |
| Nyasaland | Declaration | 20/07/1955 | |
| OMAN | Accession | 06/08/1976 | 04/11/1976 |
| PAKISTAN | Declaration | 15/08/1947 | |
| PAKISTAN | Declaration | 09/11/1951 | |
| PAKISTAN | Succession | 26/12/1969 | 14/08/1947 |
| Palestine | Extension | 03/12/1934 | 03/03/1935 |
| PANAMA | Accession | 12/11/1996 | 10/01/1997 |
| Papua | Extension | 01/08/1935 | 30/10/1935 |
| PAPUA NEW GUINEA | Succession | 06/11/1975 | |
| PARAGUAY | Accession | 28/08/1969 | 26/11/1969 |
| PERU | Accession | 05/07/1988 | 03/10/1988 |
| PHILIPPINES | Accession | 09/11/1950 | 07/02/1951 |
| PHILIPPINES | Reservation | 09/11/1950 | |
| POLAND | Signature | 12/10/1929 | |
| POLAND | Ratification | 15/11/1932 | 13/02/1933 |
| PORTUGAL | Accession | 20/03/1947 | 18/06/1947 |
| PORTUGAL | Notification | 23/09/1999 | |
| QATAR | Accession | 22/12/1986 | 22/03/1987 |
| ROMANIA | Signature | 30/01/1930 | |
| ROMANIA | Ratification | 08/07/1931 | 13/02/1933 |
| Ruanda Urundi | Extension | 13/07/1936 | 11/10/1936 |
| RUSSIAN FEDERATION | Succession | 11/02/1992 | |
| RWANDA | Succession | 01/12/1964 | 01/07/1962 |
| SAMOA | Succession | 16/10/1963 | 20/01/1964 |
| Sarawak | Extension | 04/07/1936 | |
| SAUDI ARABIA | Accession | 27/01/1969 | 27/04/1969 |
| SENEGAL | Succession | 19/06/1964 | 17/09/1964 |
| Seychelles | Extension | 03/12/1934 | 03/03/1935 |
| SEYCHELLES | Succession | 24/06/1980 | 22/09/1980 |
| Sierra Leone | Extension | 03/12/1934 | 03/03/1935 |
| SIERRA LEONE | Declaration | 06/03/1968 | |
| SIERRA LEONE | Succession | 21/03/1968 | 27/04/1961 |
| SINGAPORE | Succession | 04/09/1971 | 03/12/1971 |
| SLOVAK REPUBLIC | Succession | 24/03/1995 | 03/02/1994 |
| SLOVENIA | Succession | 07/08/1998 | 25/06/1991 |
| SOLOMON ISLANDS | Succession | 07/07/1978 | 09/09/1981 |
| Somaliland Protectorate | Extension | 03/12/1934 | 03/03/1935 |
| SOUTH AFRICA | Signature | 12/10/1929 | |
| SOUTH AFRICA | Ratification | 22/12/1954 | 22/03/1955 |
| SOUTH AFRICA | Reservation | 01/09/1955 | |
| Southern Rhodesia | Extension | 03/01/1935 | |
| Southern Rhodesia | Declaration | 20/07/1955 | |
| SOVIET UNION | Signature | 30/01/1930 | |
| SOVIET UNION | Ratification | 20/08/1934 | 18/11/1934 |
| SOVIET UNION | Declaration | 19/03/1951 | |
| SPAIN | Signature | 31/01/1930 | |
| SPAIN | Ratification | 31/03/1930 | 13/12/1933 |
| SPAIN | Declaration | 12/06/1951 | |
| SRI LANKA | Succession | 24/04/1951 | 04/02/1948 |
| SRI LANKA | Declaration | 09/11/1951 | |
| St Christopher, Nevis and Anguilla | Extension | 03/12/1934 | 03/03/1935 |
| St Helena And Dependencies | Extension | 03/12/1934 | 03/03/1935 |
| St Lucia | Extension | 03/12/1934 | 03/03/1935 |
| St Vincent | Extension | 03/12/1934 | 03/03/1935 |
| Straits Settlements | Extension | 03/12/1934 | 03/03/1935 |
| SUDAN | Accession | 11/02/1975 | 12/05/1975 |
| Swaziland | Extension | 02/09/1952 | |
| SWEDEN | Accession | 03/07/1937 | 01/10/1937 |
| SWEDEN | Declaration | 22/05/1951 | |
| SWITZERLAND | Signature | 12/10/1929 | |
| SWITZERLAND | Ratification | 09/05/1934 | 07/08/1934 |
| SWITZERLAND | Declaration | 04/04/1951 | |
| SYRIA | Succession | 13/04/1964 | 02/03/1959 |
| SYRIA | Declaration | 13/04/1964 | |
| TAJIKISTAN | Succession | 03/02/1994 | 04/05/1994 |
| Tanganyika | Extension | 03/12/1934 | 03/03/1935 |
| TANZANIA | Succession | 07/04/1965 | |
| The Gambia | Extension | 03/12/1934 | 03/03/1935 |
| TOGO | Accession | 02/07/1980 | 30/09/1980 |
| Tonga | Extension | 04/07/1936 | |
| TONGA | Succession | 31/01/1977 | |
| Transjordan | Extension | 17/12/1937 | |
| Trinidad And Tobago | Extension | 03/12/1934 | 03/03/1935 |
| TRINIDAD AND TOBAGO | Succession | 10/05/1983 | 31/08/1962 |
| Tunisia | Extension | 15/11/1932 | 13/02/1933 |
| TUNISIA | Succession | 15/11/1963 | 13/02/1964 |
| TURKEY | Accession | 25/03/1978 | 23/06/1978 |
| TURKMENISTAN | Succession | 21/12/1994 | 20/03/1995 |
| Turks And Caicos Islands | Extension | 03/12/1934 | 03/03/1935 |
| Uganda | Extension | 03/03/1934 | 03/03/1935 |
| UGANDA | Succession | 24/07/1963 | |
| UKRAINE | Accession | 14/08/1959 | 12/11/1959 |
| UNITED ARAB EMIRATES | Accession | 04/04/1986 | 03/07/1986 |
| UNITED ARAB REPUBLIC | Declaration | 02/03/1959 | |
| UNITED KINGDOM | Signature | 12/10/1929 | |
| UNITED KINGDOM | Ratification | 14/02/1933 | 15/05/1933 |
| UNITED KINGDOM | Declaration | 20/11/1934 | |
| UNITED KINGDOM | Declaration | 03/12/1934 | |
| UNITED KINGDOM | Declaration | 03/01/1935 | |
| UNITED KINGDOM | Declaration | 20/09/1935 | |
| UNITED KINGDOM | Declaration | 04/07/1936 | |
| UNITED KINGDOM | Declaration | 06/04/1937 | |
| UNITED KINGDOM | Declaration | 17/12/1937 | |
| UNITED KINGDOM | Declaration | 24/02/1938 | |
| UNITED KINGDOM | Declaration | 14/09/1938 | |
| UNITED KINGDOM | Declaration | 06/04/1939 | |
| UNITED KINGDOM | Declaration | 09/06/1951 | |
| UNITED KINGDOM | Declaration | 02/09/1952 | |
| UNITED KINGDOM | Reservation | 01/09/1955 | |
| UNITED KINGDOM | Statement | 17/06/1980 | |
| UNITED STATES OF AMERICA | Accession | 31/07/1934 | 29/10/1934 |
| UNITED STATES OF AMERICA | Reservation | 31/07/1934 | |
| UNITED STATES OF AMERICA | Declaration | 31/07/1934 | |
| UNITED STATES OF AMERICA | Declaration | 20/02/1952 | |
| UNITED STATES OF AMERICA | Reservation | 01/09/1955 | |
| UNITED STATES OF AMERICA | Denunciation | 05/01/1966 | 15/05/1966 |
| UNITED STATES OF AMERICA | Declaration | 14/05/1966 | |
| URUGUAY | Accession | 04/07/1979 | 02/10/1979 |
| UZBEKISTAN | Accession | 27/02/1997 | 28/05/1997 |
| VANUATU | Accession | 26/10/1981 | 24/01/1982 |
| VENEZUELA | Accession | 15/06/1955 | 13/09/1955 |
| VENEZUELA | Reservation | 15/06/1955 | |
| VIETNAM, REPUBLIC OF | Succession | 29/09/1958 | |
| VIETNAM, REPUBLIC OF | Accession | 11/10/1982 | 09/01/1983 |
| VIETNAM, SOCIALIST REP OF | Accession | 11/10/1982 | 09/01/1983 |
| YEMEN ARAB REPUBLIC | Accession | 06/05/1982 | 04/08/1982 |
| YUGOSLAVIA | Signature | 12/10/1929 | |
| YUGOSLAVIA | Ratification | 27/05/1931 | |
| YUGOSLAVIA | Declaration | 04/04/1951 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 18/02/2001 | 27/04/1992 |
| ZAIRE | Succession | 27/07/1962 | |
| ZAMBIA | Succession | 25/03/1970 | |
| Zanzibar | Extension | 03/12/1934 | 03/03/1935 |
| ZIMBABWE | Succession | 27/10/1980 | 18/04/1980 |