| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 05/03/1969 | |
| Antilles And Suriname | Extension | 09/11/1966 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Signature | 28/09/1965 | |
| AUSTRALIA | Ratification | 09/01/1967 | |
| BELGIUM | Accession | 20/06/1966 | |
| British Honduras | Extension | 01/01/1905 | 01/03/1968 |
| British Solomon Islands | Extension | 25/05/1966 | |
| British Virgin Islands | Extension | 01/01/1905 | 01/03/1968 |
| Cayman Islands | Extension | 25/05/1966 | |
| Cook Islands | Extension | 03/06/1965 | |
| Cook Islands | Withdrawal Res. | 27/01/1981 | |
| CROATIA | Accession | 29/09/1994 | 29/12/1994 |
| DENMARK | Declaration | 01/01/1905 | |
| DENMARK | Signature | 31/08/1965 | |
| DENMARK | Ratification | 16/05/1966 | |
| DENMARK | Declaration | 02/08/1967 | |
| Dominica | Extension | 25/05/1966 | |
| EGYPT | Accession | 20/10/1967 | |
| Faroe Islands | Extension | 02/08/1967 | |
| Fiji | Extension | 25/05/1966 | |
| FINLAND | Accession | 17/05/1968 | |
| FRANCE | Accession | 06/07/1966 | |
| GERMANY FEDERAL REPUBLIC | Signature | 02/06/1965 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 11/07/1969 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 11/07/1969 | |
| Gibraltar | Extension | 25/05/1966 | |
| Gilbert And Ellice Islands | Extension | 25/05/1966 | |
| GREECE | Accession | 18/01/1971 | |
| Guernsey, Bailiwick of | Extension | 25/05/1967 | |
| IRAN | Accession | 21/01/1970 | |
| IRELAND, REPUBLIC OF | Accession | 27/02/1967 | |
| Isle of Man | Extension | 25/05/1967 | |
| ISRAEL | Accession | 13/09/1971 | |
| ITALY | Accession | 26/03/1968 | |
| IVORY COAST | Signature | 11/06/1965 | |
| IVORY COAST | Ratification | 26/09/1978 | 26/12/1978 |
| JAPAN | Signature | 16/09/1965 | |
| JAPAN | Ratification | 15/06/1968 | |
| Jersey, Bailiwick of | Extension | 25/05/1967 | |
| KENYA | Accession | 06/03/1967 | |
| KOREA REPUBLIC OF | Accession | 21/10/1975 | 21/01/1976 |
| Land Berlin | Extension | 11/07/1969 | |
| LEBANON | Definitive Signature | 31/08/1965 | |
| LIECHTENSTEIN | Extension | 13/06/1975 | 13/09/1975 |
| LUXEMBOURG | Accession | 27/02/1975 | 27/05/1975 |
| MALAGASY REPUBLIC | Signature | 12/07/1965 | |
| MALAGASY REPUBLIC | Ratification | 30/09/1966 | |
| MALTA | Accession | 01/07/1966 | |
| Montserrat | Extension | 25/05/1966 | |
| NETHERLANDS THE | Accession | 09/11/1966 | |
| NETHERLANDS THE | Declaration | 09/11/1966 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | |
| New Hebrides | Extension | 05/12/1969 | |
| NEW ZEALAND | Definitive Signature | 03/06/1965 | |
| NEW ZEALAND | Declaration | 03/06/1965 | |
| NEW ZEALAND | Reservation | 03/06/1965 | |
| NEW ZEALAND | Withdrawal Res. | 27/01/1981 | 27/01/1981 |
| NIGER | Definitive Signature | 08/07/1965 | |
| NIGERIA | Notification | 31/05/1985 | |
| Niue Island | Extension | 03/06/1965 | |
| Niue Island | Withdrawal Res. | 27/01/1981 | |
| NORWAY | Definitive Signature | 10/09/1965 | |
| PAKISTAN | Accession | 27/09/1966 | |
| POLAND | Signature | 28/09/1965 | |
| PORTUGAL | Accession | 10/11/1967 | |
| ROMANIA | Signature | 30/09/1965 | |
| ROMANIA | Ratification | 07/03/1967 | |
| Seychelles | Extension | 25/05/1966 | |
| SLOVENIA | Accession | 23/11/1992 | 23/02/1993 |
| SOLOMON ISLANDS | Succession | 01/01/1905 | |
| SOUTH AFRICA | Definitive Signature | 27/09/1965 | |
| SPAIN | Signature | 21/09/1965 | |
| SPAIN | Ratification | 07/10/1966 | |
| St Helena | Extension | 01/01/1905 | 01/03/1968 |
| St Lucia | Extension | 01/01/1905 | 01/03/1968 |
| St Vincent | Extension | 01/01/1905 | 01/03/1968 |
| SWEDEN | Signature | 28/09/1965 | |
| SWITZERLAND | Signature | 28/09/1965 | |
| SWITZERLAND | Ratification | 22/08/1968 | |
| SWITZERLAND | Declaration | 13/06/1975 | |
| SYRIA | Accession | 30/04/1975 | 30/07/1975 |
| SYRIA | Declaration | 30/04/1975 | |
| TANZANIA | Accession | 08/12/1975 | 08/03/1976 |
| Tokelau Islands | Extension | 03/06/1965 | |
| Tokelau Islands | Declaration | 27/01/1981 | |
| TUNISIA | Signature | 14/07/1965 | |
| TUNISIA | Ratification | 14/07/1965 | |
| TURKEY | Accession | 17/05/1991 | 17/08/1991 |
| UGANDA | Accession | 19/06/1967 | |
| UNITED KINGDOM | Declaration | 01/01/1905 | 01/03/1968 |
| UNITED KINGDOM | Signature | 04/06/1965 | |
| UNITED KINGDOM | Ratification | 25/05/1966 | |
| UNITED KINGDOM | Declaration | 25/05/1966 | |
| UNITED KINGDOM | Declaration | 05/12/1969 | |
| YUGOSLAVIA | Accession | 15/04/1966 |