| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | 21/01/1965 | |
| Aruba | Extension | 03/01/1986 | |
| AUSTRIA | Signature | 20/04/1971 | |
| AUSTRIA | Ratification | 28/06/1985 | 29/07/1985 |
| AUSTRIA | Declaration | 26/08/1985 | |
| AUSTRIA | Declaration | 07/11/1990 | |
| AUSTRIA | Declaration | 04/12/1992 | |
| BELGIUM | Signature | 03/06/1964 | |
| BELGIUM | Ratification | 05/06/1972 | 06/07/1972 |
| BELGIUM | Declaration | 05/06/1972 | |
| BOSNIA AND HERZEGOVINA | Accession | 29/12/1994 | 30/01/1995 |
| Cook Islands | Extension | 20/07/1973 | |
| CROATIA | Accession | 27/01/1993 | 28/02/1993 |
| CYPRUS | Signature | 01/03/2006 | 02/04/2006 |
| CYPRUS | Ratification | 01/03/2006 | 02/04/2006 |
| CYPRUS | Reservation | 01/03/2006 | 02/04/2006 |
| CZECH REPUBLIC | Succession | 08/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 26/03/1991 | |
| CZECHOSLOVAKIA | Approval | 26/03/1991 | 27/04/1991 |
| DENMARK | Definitive Signature | 03/06/1964 | 04/07/1964 |
| FINLAND | Signature | 16/09/1991 | |
| FINLAND | Ratification | 16/09/1991 | 17/10/1991 |
| FRANCE | Definitive Signature | 03/06/1964 | 04/07/1964 |
| GERMANY FEDERAL REPUBLIC | Signature | 03/06/1964 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 23/07/1971 | 24/08/1971 |
| GERMANY FEDERAL REPUBLIC | Declaration | 23/07/1971 | |
| Isle of Man | Extension | 02/09/1994 | |
| ITALY | Signature | 03/06/1964 | |
| ITALY | Ratification | 20/09/1966 | 21/10/1966 |
| Land Berlin | Extension | 23/07/1971 | |
| LIECHTENSTEIN | Signature | 22/05/1991 | |
| LIECHTENSTEIN | Ratification | 22/05/1991 | 23/06/1991 |
| LUXEMBOURG | Signature | 03/06/1964 | |
| LUXEMBOURG | Ratification | 30/11/1965 | 31/12/1965 |
| MACEDONIA THE FYR OF | Accession | 30/03/1994 | 01/05/1994 |
| MALTA | Signature | 16/11/1988 | |
| MALTA | Ratification | 26/03/1991 | 27/04/1991 |
| NETHERLANDS THE | Signature | 03/06/1964 | |
| NETHERLANDS THE | Declaration | 03/06/1964 | |
| NETHERLANDS THE | Ratification | 21/01/1965 | 22/02/1965 |
| NETHERLANDS THE | Declaration | 21/01/1965 | |
| NETHERLANDS THE | Declaration | 03/01/1986 | |
| NETHERLANDS THE | Declaration | 09/01/2012 | |
| NEW ZEALAND | Accession | 20/07/1978 | 21/08/1978 |
| NEW ZEALAND | Declaration | 20/07/1978 | |
| Niue Island | Extension | 20/07/1973 | |
| NORWAY | Definitive Signature | 03/06/1964 | 04/07/1964 |
| POLAND | Signature | 11/07/1994 | |
| POLAND | Ratification | 10/10/1994 | 11/11/1994 |
| PORTUGAL | Signature | 27/04/1978 | |
| PORTUGAL | Ratification | 03/11/1981 | 04/12/1981 |
| ROMANIA | Signature | 02/10/1995 | |
| ROMANIA | Ratification | 19/05/1998 | 20/06/1998 |
| RUSSIAN FEDERATION | Signature | 19/02/1998 | |
| RUSSIAN FEDERATION | Ratification | 17/09/1999 | 18/10/1999 |
| SLOVAK REPUBLIC | Succession | 08/01/1993 | 01/01/1993 |
| SLOVENIA | Accession | 02/07/1992 | 03/08/1992 |
| Suriname | Extension | 21/01/1965 | |
| SWEDEN | Definitive Signature | 21/06/1967 | 22/07/1967 |
| SWITZERLAND | Signature | 25/04/1991 | |
| SWITZERLAND | Ratification | 25/04/1991 | 26/05/1991 |
| Tokelau Islands | Extension | 20/07/1973 | |
| TURKEY | Signature | 27/11/1964 | |
| UNITED KINGDOM | Signature | 25/08/1964 | |
| UNITED KINGDOM | Ratification | 25/08/1964 | |
| UNITED KINGDOM | Definitive Signature | 25/08/1964 | |
| UNITED KINGDOM | Declaration | 25/08/1964 | |
| UNITED KINGDOM | Declaration | 02/09/1994 | |
| YUGOSLAVIA | Accession | 15/09/1977 | 16/10/1977 |