| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Signature | 10/10/1966 | |
| ARGENTINA | Ratification | 25/04/1967 | |
| BOLIVIA | Accession | 10/04/1968 | |
| CAMEROON | Accession | 06/03/1964 | |
| CHILE | Signature | 18/08/1988 | |
| CHILE | Ratification | 23/11/1989 | 23/02/1990 |
| CHILE | Declaration | 23/11/1989 | |
| COLOMBIA | Signature | 21/05/1963 | |
| CUBA | Signature | 10/12/1964 | |
| CUBA | Ratification | 25/10/1965 | |
| EGYPT | Signature | 19/08/1965 | |
| EGYPT | Ratification | 05/11/1965 | |
| EGYPT | Withdrawal Res. | 29/03/1989 | |
| HUNGARY | Accession | 28/07/1989 | 28/10/1989 |
| LEBANON | Signature | 21/05/1963 | |
| MEXICO | Accession | 25/04/1989 | 25/07/1989 |
| MOROCCO | Signature | 30/11/1984 | |
| NIGER | Accession | 24/07/1979 | |
| PERU | Accession | 26/08/1980 | |
| PHILIPPINES | Signature | 21/05/1963 | |
| PHILIPPINES | Ratification | 15/11/1965 | |
| POLAND | Accession | 23/01/1990 | 23/04/1990 |
| RUSSIAN FEDERATION | Ratification | 13/05/2005 | 13/08/2005 |
| SPAIN | Signature | 06/09/1963 | |
| ST VINCENT AND THE GRENADINES | Accession | 18/12/2001 | |
| TAIWAN | Signature | 21/05/1963 | |
| TRINIDAD AND TOBAGO | Accession | 31/01/1966 | |
| UNITED KINGDOM | Signature | 11/11/1964 | |
| YUGOSLAVIA | Signature | 21/05/1965 | |
| YUGOSLAVIA | Ratification | 12/08/1977 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 05/02/2002 | 27/04/1992 |