| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 31/10/1963 | |
| ALGERIA | Reservation | 31/10/1963 | |
| Antigua | Extension | 19/10/1959 | 17/01/1960 |
| ANTIGUA AND BARBUDA | Succession | 25/10/1988 | 01/11/1981 |
| Antilles | Extension | 27/07/1960 | 25/10/1960 |
| Antilles | Notification | 01/01/1986 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Accession | 06/01/1967 | 06/04/1967 |
| AUSTRIA | Signature | 18/05/1956 | |
| AUSTRIA | Ratification | 13/11/1957 | |
| Barbados | Extension | 19/10/1959 | 17/01/1960 |
| BELGIUM | Signature | 18/05/1956 | |
| BELGIUM | Ratification | 27/05/1960 | |
| Bermuda | Extension | 19/10/1959 | 17/01/1960 |
| BOSNIA AND HERZEGOVINA | Succession | 12/01/1994 | 06/03/1992 |
| BOSNIA AND HERZEGOVINA | Notification | 12/01/1994 | |
| British Solomon Islands | Extension | 19/10/1959 | 17/01/1960 |
| Brunei | Extension | 19/10/1959 | 17/01/1960 |
| BULGARIA | Objection | 01/01/1905 | |
| BULGARIA | Accession | 18/01/1960 | |
| BULGARIA | Reservation | 18/01/1960 | |
| BULGARIA | Withdrawal Res. | 06/05/1994 | |
| CAMBODIA | Accession | 04/08/1959 | |
| CAMEROON | Accession | 24/09/1963 | |
| CANADA | Accession | 08/09/1972 | 07/12/1972 |
| Christmas Island | Extension | 03/01/1968 | |
| Cocos Keeling Islands | Extension | 03/01/1968 | |
| CROATIA | Succession | 31/08/1994 | 08/10/1991 |
| CUBA | Objection | 01/01/1905 | |
| CUBA | Accession | 04/08/1965 | |
| CUBA | Reservation | 04/08/1965 | |
| Cyprus | Extension | 19/10/1959 | 17/01/1960 |
| CZECH REPUBLIC | Succession | 02/06/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Objection | 01/01/1905 | |
| CZECHOSLOVAKIA | Accession | 31/05/1962 | |
| CZECHOSLOVAKIA | Reservation | 31/05/1962 | |
| DENMARK | Accession | 03/09/1965 | |
| DENMARK | Statement | 03/09/1965 | |
| Dominica | Extension | 19/10/1959 | 17/01/1960 |
| Falkland Islands | Extension | 19/10/1959 | 17/01/1960 |
| FINLAND | Accession | 15/06/1961 | |
| FRANCE | Communication | 01/01/1905 | |
| FRANCE | Signature | 18/05/1956 | |
| FRANCE | Ratification | 20/05/1959 | |
| GERMANY FEDERAL REPUBLIC | Communication | 01/01/1905 | |
| GERMANY FEDERAL REPUBLIC | Signature | 18/05/1956 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 23/10/1961 | |
| Gibraltar | Extension | 19/10/1959 | 17/01/1960 |
| Gilbert And Ellice Islands | Extension | 19/10/1959 | 17/01/1960 |
| GREECE | Accession | 12/09/1961 | |
| Grenada | Extension | 19/10/1959 | 17/01/1960 |
| Guernsey | Extension | 23/05/1958 | |
| Hong Kong | Extension | 12/12/1974 | 12/03/1975 |
| Hong Kong | Notification | 10/06/1997 | 01/07/1997 |
| HUNGARY | Signature | 18/05/1956 | |
| HUNGARY | Ratification | 23/07/1957 | |
| HUNGARY | Declaration | 23/07/1957 | |
| HUNGARY | Withdrawal Dec. | 03/10/1990 | 03/10/1991 |
| IRELAND, REPUBLIC OF | Accession | 07/07/1967 | 05/10/1967 |
| Isle of Man | Extension | 23/05/1958 | |
| ISRAEL | Accession | 14/11/1967 | |
| ITALY | Signature | 18/05/1956 | |
| ITALY | Ratification | 29/03/1962 | |
| Jamaica | Extension | 19/10/1959 | 17/01/1960 |
| JAMAICA | Succession | 11/11/1963 | |
| JAPAN | Accession | 14/05/1971 | |
| JAPAN | Statement | 14/05/1971 | |
| Jersey | Extension | 23/05/1958 | |
| Land Berlin | Extension | 23/10/1961 | |
| LIECHTENSTEIN | Extension | 07/07/1960 | |
| LUXEMBOURG | Signature | 18/05/1956 | |
| LUXEMBOURG | Ratification | 25/10/1960 | |
| MALAWI | Accession | 24/05/1969 | |
| Mauritius | Extension | 19/10/1959 | 17/01/1960 |
| MAURITIUS | Succession | 18/07/1969 | 12/03/1968 |
| MONTENEGRO | Succession | 23/10/2006 | 03/06/2006 |
| Montserrat | Extension | 19/10/1959 | 17/01/1960 |
| NETHERLANDS THE | Signature | 18/05/1956 | |
| NETHERLANDS THE | Ratification | 27/07/1960 | |
| NETHERLANDS THE | Notification | 01/01/1986 | |
| New Guinea | Extension | 27/07/1960 | 25/10/1960 |
| New Guinea | Extension | 03/01/1968 | |
| Norfolk Island | Extension | 03/01/1968 | |
| North Borneo | Extension | 19/10/1959 | 17/01/1960 |
| NORWAY | Accession | 22/11/1961 | |
| Papua | Extension | 03/01/1968 | |
| POLAND | Objection | 01/01/1905 | |
| POLAND | Signature | 18/05/1956 | |
| POLAND | Ratification | 06/05/1959 | |
| POLAND | Reservation | 06/05/1959 | |
| PORTUGAL | Accession | 01/05/1964 | |
| Puerto Rico | Extension | 03/12/1968 | |
| ROMANIA | Objection | 01/01/1905 | |
| ROMANIA | Accession | 01/11/1967 | |
| ROMANIA | Declaration | 01/11/1967 | |
| ROMANIA | Statement | 01/11/1967 | |
| Sarawak | Extension | 19/10/1959 | 17/01/1960 |
| Sierra Leone | Extension | 19/10/1959 | 17/01/1960 |
| SIERRA LEONE | Succession | 13/03/1962 | |
| Singapore | Extension | 19/10/1959 | 17/01/1960 |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | 01/01/1993 |
| SLOVENIA | Succession | 03/11/1992 | 25/06/1991 |
| SOLOMON ISLANDS | Succession | 03/09/1981 | |
| SPAIN | Accession | 21/01/1959 | |
| St Christopher, Nevis and Anguilla | Extension | 19/10/1959 | 17/01/1960 |
| St Lucia | Extension | 19/10/1959 | 17/01/1960 |
| St Vincent | Extension | 19/10/1959 | 17/01/1960 |
| SWEDEN | Signature | 18/05/1956 | |
| SWEDEN | Ratification | 11/08/1959 | |
| SWITZERLAND | Signature | 18/05/1956 | |
| SWITZERLAND | Ratification | 07/07/1960 | |
| SWITZERLAND | Declaration | 07/07/1960 | |
| The Gambia | Extension | 19/10/1959 | 17/01/1960 |
| Trinidad And Tobago | Extension | 19/10/1959 | 17/01/1960 |
| TRINIDAD AND TOBAGO | Succession | 11/04/1966 | 31/08/1962 |
| UNITED KINGDOM | Signature | 18/05/1956 | |
| UNITED KINGDOM | Ratification | 23/05/1958 | |
| UNITED KINGDOM | Objection | 01/01/1961 | |
| UNITED STATES OF AMERICA | Communication | 01/01/1905 | |
| UNITED STATES OF AMERICA | Accession | 03/12/1968 | |
| YUGOSLAVIA | Accession | 09/03/1961 | |
| Zanzibar | Extension | 19/10/1959 | 17/01/1960 |