| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Signature | 08/07/1964 | |
| ALGERIA | Ratification | 12/06/1969 | |
| AZERBAIJAN | Ratification | 19/05/1992 | 19/05/1992 |
| BELGIUM | Ratification | 17/05/1978 | 17/05/1979 |
| BOLIVIA | Signature | 08/07/1964 | |
| BOLIVIA | Ratification | 31/01/1977 | 31/01/1978 |
| BRAZIL | Signature | 08/07/1964 | |
| BRAZIL | Ratification | 24/03/1969 | |
| BULGARIA | Signature | 08/07/1964 | |
| BULGARIA | Ratification | 29/03/1965 | 29/03/1966 |
| BYELORUSSIA S S R | Signature | 08/07/1964 | |
| BYELORUSSIA S S R | Ratification | 26/02/1968 | |
| CHINA | Declaration | 20/10/1999 | |
| Comoro Islands | App without mod | 27/11/1974 | |
| COSTA RICA | Signature | 08/07/1964 | |
| COSTA RICA | Ratification | 27/01/1966 | |
| CUBA | Signature | 08/07/1964 | |
| CUBA | Ratification | 05/02/1971 | |
| CZECH REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Ratification | 11/01/1990 | 11/01/1991 |
| DENMARK | Signature | 08/07/1964 | |
| DENMARK | Ratification | 17/06/1970 | |
| DJIBOUTI | Succession | 03/08/1978 | 03/08/1978 |
| ECUADOR | Signature | 08/07/1964 | |
| ECUADOR | Ratification | 10/03/1969 | |
| FINLAND | Signature | 08/07/1964 | |
| FINLAND | Ratification | 23/09/1968 | |
| FRANCE | Signature | 07/08/1964 | |
| FRANCE | Ratification | 06/04/1972 | |
| FRANCE | Declaration | 27/11/1974 | |
| French Guiana | App without mod | 27/11/1974 | |
| French Polynesia | App without mod | 27/11/1974 | |
| French Terr Of Afars And Issas | App without mod | 27/11/1974 | |
| GERMAN DEMOCRATIC REPUBLIC | Signature | 08/07/1964 | |
| GERMAN DEMOCRATIC REPUBLIC | Ratification | 07/05/1975 | |
| GERMANY FEDERAL REPUBLIC | Signature | 08/07/1964 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 05/12/1973 | 05/12/1974 |
| GHANA | Signature | 08/07/1964 | |
| GHANA | Ratification | 21/11/1967 | |
| Guadeloupe | App without mod | 27/11/1974 | |
| GUATEMALA | Signature | 08/07/1964 | |
| GUATEMALA | Ratification | 21/10/1975 | |
| GUINEA | Signature | 08/07/1964 | |
| GUINEA | Ratification | 12/12/1966 | |
| INDONESIA | Signature | 08/07/1964 | |
| INDONESIA | Ratification | 13/06/1969 | |
| IRAQ | Ratification | 06/03/1987 | 06/03/1988 |
| ITALY | Signature | 08/07/1964 | |
| ITALY | Ratification | 05/05/1971 | |
| JAPAN | Ratification | 21/06/1993 | 21/06/1994 |
| JORDAN | Signature | 08/07/1964 | |
| JORDAN | Ratification | 11/03/1965 | 29/03/1966 |
| KYRGYZSTAN | Ratification | 31/03/1992 | 31/03/1992 |
| LATVIA | Ratification | 08/03/1993 | 08/03/1994 |
| LEBANON | Ratification | 01/06/1977 | 01/06/1978 |
| LUXEMBOURG | Ratification | 08/04/2008 | 08/04/2009 |
| Macao | App without mod | 09/08/1999 | 09/08/1999 |
| MALAGASY REPUBLIC | Signature | 08/07/1964 | |
| MALAGASY REPUBLIC | Ratification | 21/11/1966 | |
| Martinique | App without mod | 27/11/1974 | |
| MEXICO | Signature | 08/07/1964 | |
| MEXICO | Ratification | 18/06/1968 | |
| New Caledonia | App without mod | 27/11/1974 | |
| NORWAY | Signature | 08/07/1964 | |
| NORWAY | Ratification | 06/06/1966 | |
| PANAMA | Signature | 08/07/1964 | |
| PANAMA | Ratification | 19/06/1970 | |
| PARAGUAY | Signature | 08/07/1964 | |
| PARAGUAY | Ratification | 10/07/1967 | |
| POLAND | Signature | 08/07/1964 | |
| POLAND | Ratification | 26/06/1968 | |
| PORTUGAL | Ratification | 24/02/1983 | 24/02/1984 |
| Reunion | App without mod | 27/11/1974 | |
| SENEGAL | Signature | 08/07/1964 | |
| SENEGAL | Ratification | 25/04/1966 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| SOVIET UNION | Signature | 08/07/1964 | |
| SOVIET UNION | Ratification | 22/09/1967 | |
| SPAIN | Signature | 08/07/1964 | |
| SPAIN | Ratification | 04/06/1970 | |
| St Pierre and Miquelon | App without mod | 27/11/1974 | |
| Swaziland | Extension | 02/02/1968 | |
| SWEDEN | Signature | 08/07/1964 | |
| SWEDEN | Ratification | 11/06/1965 | |
| SWITZERLAND | Signature | 08/07/1964 | |
| SWITZERLAND | Ratification | 18/02/1966 | |
| SYRIA | Signature | 08/07/1964 | |
| SYRIA | Ratification | 10/06/1965 | |
| TAJIKISTAN | Ratification | 26/11/1993 | 26/11/1993 |
| TUNISIA | Signature | 08/07/1964 | |
| TUNISIA | Ratification | 14/04/1970 | |
| UKRAINE | Signature | 08/07/1964 | |
| UKRAINE | Ratification | 19/06/1968 | |
| UNITED KINGDOM | Signature | 08/07/1964 | |
| UNITED KINGDOM | Ratification | 21/04/1967 | |
| UNITED KINGDOM | Declaration | 02/02/1968 | |
| UNITED KINGDOM | Declaration | 09/04/1968 | |
| UNITED KINGDOM | Declaration | 12/11/1974 | |
| UNITED KINGDOM | Declaration | 18/04/1975 | |
| UNITED KINGDOM | Declaration | 09/06/1975 | |
| UNITED KINGDOM | Declaration | 18/02/1977 | |
| UNITED KINGDOM | Declaration | 24/08/1977 | |
| UNITED KINGDOM | Declaration | 27/01/1978 | |
| VENEZUELA | Signature | 08/07/1964 | |
| VENEZUELA | Ratification | 03/06/1971 | |
| VIETNAM | Signature | 08/07/1964 | |
| VIETNAM | Ratification | 07/12/1970 | |
| VIETNAM | Ratification | 03/10/1994 | 03/10/1995 |
| ZAIRE | Signature | 08/07/1964 | |
| ZAIRE | Ratification | 05/09/1967 | |