| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Signature | 25/10/1961 | |
| ARGENTINA | Ratification | 10/10/1963 | |
| Aruba | Extension | 01/01/1986 | |
| BELGIUM | Accession | 02/05/1968 | |
| BOSNIA AND HERZEGOVINA | Succession | 12/01/1994 | 06/03/1992 |
| BOTSWANA | Accession | 11/04/1969 | |
| BURMA | Accession | 07/03/1980 | 06/04/1980 |
| CAMBODIA | Accession | 31/08/1965 | |
| CENTRAL AFRICAN REPUBLIC | Signature | 28/03/1962 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 19/03/1973 | |
| CHINA | Statement | 29/09/1972 | |
| DENMARK | Signature | 18/04/1961 | |
| DENMARK | Ratification | 02/10/1968 | |
| DOMINICAN REPUBLIC | Signature | 30/03/1962 | |
| DOMINICAN REPUBLIC | Ratification | 14/01/1964 | |
| EGYPT | Accession | 09/06/1964 | |
| ESTONIA | Accession | 21/10/1991 | 20/11/1991 |
| FINLAND | Signature | 20/10/1961 | |
| FINLAND | Ratification | 09/12/1969 | 08/01/1970 |
| GABON | Accession | 02/04/1964 | |
| GERMANY FEDERAL REPUBLIC | Signature | 28/03/1962 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 11/11/1964 | |
| GHANA | Signature | 18/04/1961 | |
| GUINEA | Accession | 10/01/1968 | |
| ICELAND | Accession | 18/05/1971 | |
| INDIA | Accession | 15/10/1965 | |
| INDONESIA | Accession | 04/06/1982 | 04/07/1982 |
| IRAN | Signature | 27/05/1961 | |
| IRAN | Ratification | 03/02/1965 | |
| IRAQ | Signature | 20/02/1962 | |
| IRAQ | Ratification | 15/10/1963 | |
| ISRAEL | Objection | 15/10/1969 | |
| ITALY | Signature | 13/03/1962 | |
| ITALY | Ratification | 25/06/1969 | |
| KENYA | Accession | 01/07/1965 | |
| KOREA REPUBLIC OF | Signature | 30/03/1962 | |
| KOREA REPUBLIC OF | Ratification | 07/03/1977 | |
| Land Berlin | Extension | 11/11/1964 | |
| LAOS | Accession | 03/12/1963 | |
| LEBANON | Signature | 18/04/1961 | |
| LIBERIA | Accession | 16/09/2005 | 16/10/2005 |
| LIBYA | Accession | 07/06/1977 | 07/07/1977 |
| MACEDONIA THE FYR OF | Succession | 18/08/1993 | 17/09/1991 |
| MADAGASCAR | Accession | 31/07/1963 | |
| MALAWI | Accession | 29/04/1980 | 29/05/1980 |
| MALAYSIA | Accession | 09/11/1965 | |
| MONACO | Accession | 04/10/2005 | 03/11/2005 |
| MOROCCO | Accession | 23/02/1977 | 25/03/1977 |
| NEPAL | Accession | 28/09/1965 | |
| Netherlands Antilles | Extension | 07/09/1984 | 07/10/1984 |
| NETHERLANDS THE | Accession | 07/09/1984 | 07/10/1984 |
| NETHERLANDS THE | Declaration | 07/09/1984 | |
| NEW ZEALAND | Accession | 05/09/2003 | 05/10/2003 |
| NEW ZEALAND | Declaration | 05/09/2003 | 01/01/1900 |
| NICARAGUA | Accession | 09/01/1990 | 08/02/1990 |
| NIGER | Accession | 28/03/1966 | |
| NORWAY | Signature | 18/04/1961 | |
| NORWAY | Ratification | 24/10/1967 | |
| OMAN | Accession | 31/05/1974 | 30/06/1974 |
| PANAMA | Accession | 04/12/1963 | |
| PARAGUAY | Accession | 23/12/1969 | |
| PHILIPPINES | Signature | 20/10/1961 | |
| PHILIPPINES | Ratification | 15/11/1965 | |
| SENEGAL | Signature | 18/04/1961 | |
| SRI LANKA | Accession | 31/07/1978 | 30/08/1978 |
| SURINAME | Accession | 28/10/1992 | 27/11/1992 |
| SWEDEN | Signature | 18/04/1961 | |
| SWEDEN | Ratification | 21/03/1967 | |
| SWITZERLAND | Accession | 12/06/1992 | 12/07/1992 |
| TAIWAN | Signature | 18/04/1961 | |
| TANZANIA | Signature | 27/02/1962 | |
| TANZANIA | Ratification | 05/11/1962 | |
| THAILAND | Signature | 30/10/1961 | |
| THAILAND | Ratification | 23/01/1985 | 22/02/1985 |
| THAILAND | Objection | 23/01/1985 | |
| TUNISIA | Accession | 24/01/1968 | |
| YUGOSLAVIA | Signature | 18/04/1961 | |
| YUGOSLAVIA | Ratification | 01/04/1963 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAIRE | Accession | 15/07/1976 | 14/08/1976 |