| Country | Action | Action Date | Effective Date |
|---|
| ANGOLA | Contract. Party | 22/04/1994 | 11/11/1975 |
| ANTIGUA AND BARBUDA | Contract. Party | | 30/03/1987 |
| ANTIGUA AND BARBUDA | Application | 01/11/1981 | |
| Antilles | Extension | 01/01/1986 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Signature | 30/10/1947 | |
| AUSTRALIA | Notification | 27/05/1964 | 27/05/1964 |
| AUSTRIA | Notification | 27/10/1976 | 27/10/1976 |
| BAHRAIN | Contract. Party | 17/01/1994 | 15/08/1971 |
| BELGIUM | Signature | 30/10/1947 | |
| BELGIUM | Contract. Party | 21/10/1964 | 21/10/1964 |
| BELIZE | Succession | 07/10/1983 | 21/09/1981 |
| BOLIVIA | Participation | 09/08/1990 | 08/09/1990 |
| BOTSWANA | Contract. Party | 28/08/1987 | |
| BRAZIL | Signature | 30/10/1947 | |
| British Antarctic Territory | Extension | 01/01/1965 | |
| Brunei | Extension | 01/01/1965 | |
| BRUNEI DARUSSALAM | Application | 31/12/1983 | |
| BRUNEI DARUSSALAM | Succession | 08/01/1994 | 31/12/1983 |
| BURMA | Signature | 30/10/1947 | |
| CAMEROON | Contract. Party | 01/01/1960 | |
| CANADA | Signature | 30/10/1947 | |
| CENTRAL AFRICAN REPUBLIC | Contract. Party | 14/08/1960 | |
| CEYLON | Signature | 30/10/1947 | |
| CHILE | Signature | 30/10/1947 | |
| CHINA | Withdrawal | | 05/05/1950 |
| CHINA | Signature | 30/10/1947 | |
| CONGO, REPUBLIC OF | Contract. Party | 15/08/1960 | |
| COSTA RICA | Participation | 25/10/1990 | 24/11/1995 |
| CUBA | Signature | 30/10/1947 | |
| CUBA | Notification | 23/11/1964 | 23/11/1964 |
| CUBA | Notification | 21/12/1964 | 21/12/1964 |
| CZECH REPUBLIC | Participation | 16/03/1993 | 15/04/1993 |
| CZECHOSLOVAKIA | Signature | 30/10/1947 | |
| DJIBOUTI | Succession | 17/04/1995 | 16/12/1994 |
| DOMINICA, COMMONWEALTH OF | Application | 03/11/1978 | |
| DOMINICA, COMMONWEALTH OF | Succession | 20/04/1993 | 03/11/1978 |
| EL SALVADOR | Participation | 22/05/1991 | |
| FRANCE | Signature | 30/10/1947 | |
| FRANCE | Notification | 10/01/1964 | 10/01/1964 |
| French Overseas Territories | Extension | 13/06/1949 | |
| GABON | Contract. Party | 17/08/1960 | |
| GHANA | Accession | 18/10/1957 | |
| GRENADA | Succession | 09/02/1994 | 07/02/1974 |
| GUATEMALA | Participation | 10/02/1991 | 10/10/1991 |
| GUINEA BISSAU | Succession | 22/04/1994 | 10/09/1974 |
| GUYANA | Contract. Party | 26/05/1966 | |
| HAITI | Ratification | 07/03/1952 | |
| HONDURAS | Participation | 11/03/1994 | 10/04/1994 |
| Hong Kong | Extension | | 23/04/1986 |
| HUNGARY | Contract. Party | 09/09/1973 | |
| INDIA | Signature | 30/10/1947 | |
| INDIA | Notification | 16/05/1975 | 31/12/1974 |
| IRELAND, REPUBLIC OF | Notification | 03/09/1975 | 03/09/1975 |
| Jamaica | Provisional application | 01/08/1962 | |
| JAMAICA | Contract. Party | 06/08/1962 | |
| JAPAN | Accession | 10/09/1955 | |
| KIRIBATI | Application | 12/07/1979 | |
| KUWAIT | Contract. Party | 18/06/1961 | |
| LEBANON | Signature | 30/10/1947 | |
| LEBANON | Withdrawal | 25/02/1951 | 25/02/1951 |
| LESOTHO | Succession | 08/01/1988 | 04/10/1966 |
| LIBERIA | Ratification | 17/05/1950 | |
| LIECHTENSTEIN | Participation | 22/04/1994 | 29/03/1994 |
| LUXEMBOURG | Signature | 30/10/1947 | |
| LUXEMBOURG | Notification | 21/10/1964 | 21/10/1964 |
| MACAU | Succession | 11/01/1991 | 11/01/1991 |
| MADAGASCAR | Contract. Party | 25/06/1960 | |
| MALAYSIA | Accession | 24/10/1957 | |
| MALDIVES | Contract. Party | 19/04/1983 | 26/07/1965 |
| MALI | Succession | 11/01/1993 | 20/06/1960 |
| MAURITANIA | Contract. Party | 28/11/1960 | |
| MOROCCO | Contract. Party | 17/06/1987 | |
| MOZAMBIQUE | Succession | 27/07/1992 | 25/05/1975 |
| NAMIBIA | Succession | 15/09/1993 | 21/03/1990 |
| NETHERLANDS THE | Signature | 30/10/1947 | |
| NETHERLANDS THE | Notification | 21/10/1964 | 21/10/1964 |
| NEW ZEALAND | Signature | 30/10/1947 | |
| NIGERIA | Accession | 01/10/1960 | |
| NIGERIA | Notification | 17/10/1975 | 17/10/1975 |
| NORWAY | Signature | 30/10/1947 | |
| PAKISTAN | Signature | 30/10/1947 | |
| Papua New Guinea | Extension | 04/08/1975 | 03/09/1975 |
| Papua New Guinea | Application | 25/02/1976 | |
| PAPUA NEW GUINEA | Succession | 17/04/1995 | 16/12/1994 |
| PARAGUAY | Participation | 07/12/1993 | 06/01/1994 |
| PORTUGAL | Notification | 31/03/1972 | 31/03/1972 |
| PORTUGAL | Notification | 16/05/1975 | 31/12/1974 |
| QATAR | Contract. Party | 22/04/1994 | 03/09/1971 |
| Rhodesia And Nyasaland | Extension | 28/06/1948 | |
| Rhodesia And Nyasaland | Notification | 02/08/1963 | 02/08/1963 |
| SAINT CHRISTOPHER AND NEVIS | Application | 19/09/1983 | |
| SAINT LUCIA | Succession | 13/04/1993 | 22/02/1979 |
| SIERRA LEONE | Accession | 27/04/1961 | |
| SIERRA LEONE | Notification | 07/09/1973 | 07/09/1973 |
| SINGAPORE | Succession | 08/10/1973 | 09/08/1965 |
| SLOVAK REPUBLIC | Participation | 16/03/1993 | 01/01/1993 |
| SLOVENIA | Participation | 30/09/1994 | 30/10/1944 |
| SOLOMON ISLANDS | Contract. Party | 07/07/1978 | 28/12/1994 |
| SOUTH AFRICA | Signature | 30/10/1947 | |
| Southern Rhodesia | Signature | 30/10/1947 | |
| ST KITTS AND NEVIS | Succession | 22/04/1974 | 19/09/1983 |
| ST VINCENT AND THE GRENADINES | Succession | 18/05/1993 | 27/10/1979 |
| SURINAME | Contract. Party | 25/11/1978 | 25/11/1975 |
| SWAZILAND | Succession | 08/02/1993 | 06/09/1968 |
| SYRIA | Withdrawal | | 06/08/1951 |
| SYRIA | Signature | 30/10/1947 | |
| TANGANYIKA | Accession | 09/12/1961 | |
| TANZANIA | Notification | 02/08/1974 | 02/08/1974 |
| TOGO | Contract. Party | 27/04/1960 | 27/04/1960 |
| TRINIDAD AND TOBAGO | Contract. Party | 31/08/1962 | |
| TUNISIA | Participation | 20/07/1990 | 19/08/1990 |
| TUVALU | Application | 01/10/1978 | |
| UGANDA | Contract. Party | 09/08/1963 | |
| UNITED ARAB EMIRATES | Succession | 08/03/1994 | 01/12/1971 |
| UNITED ARAB REPUBLIC | Accession | | 09/05/1970 |
| UNITED KINGDOM | Signature | 30/10/1947 | |
| UNITED KINGDOM | Provisional application | 28/06/1948 | |
| UNITED STATES OF AMERICA | Signature | 30/10/1947 | |
| UNITED STATES OF AMERICA | Notification | 14/11/1971 | 14/11/1971 |
| UPPER VOLTA | Contract. Party | 05/08/1960 | |
| VENEZUELA | Participation | 31/08/1990 | |
| YUGOSLAVIA | Contract. Party | 26/07/1966 | |
| ZAMBIA | Succession | 24/02/1982 | 24/10/1964 |