| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Antilles | Extension | 24/06/1959 | |
| ARGENTINA | Accession | 30/12/1958 | |
| Aruba | Extension | 01/01/1986 | 01/01/1986 |
| AUSTRALIA | Accession | 29/09/1954 | |
| AUSTRALIA | Declaration | 24/11/1954 | |
| AUSTRIA | Accession | 20/08/1958 | |
| Belgian Congo | Extension | 18/01/1954 | |
| BELGIUM | Signature | 27/02/1953 | |
| BELGIUM | Ratification | 18/01/1954 | |
| BELGIUM | Declaration | 18/01/1954 | |
| CAMBODIA | Accession | 16/07/1953 | |
| CANADA | Signature | 27/02/1953 | |
| CANADA | Ratification | 14/11/1953 | |
| Caribbean part of the Netherlands | Extension | 10/10/2010 | |
| CEYLON | Signature | 27/02/1953 | |
| CEYLON | Ratification | 10/02/1955 | |
| Channel Islands | Extension | 01/04/1954 | |
| CHILE | Accession | 15/10/1963 | |
| Cook Islands | Extension | 04/10/1955 | |
| Curacao | Extension | 10/10/2010 | |
| DENMARK | Signature | 27/02/1953 | |
| DENMARK | Ratification | 13/10/1953 | |
| EGYPT | Accession | 11/05/1953 | |
| Falkland Islands | Extension | 12/11/1956 | |
| FINLAND | Accession | 26/05/1955 | |
| FRANCE | Signature | 27/02/1953 | |
| FRANCE | Ratification | 19/06/1953 | |
| FRANCE | Declaration | 16/09/1953 | 16/09/1953 |
| French Cameroons | Extension | 16/09/1953 | |
| French Overseas Territories | Extension | 16/09/1953 | |
| French Togoland | Extension | 16/09/1953 | |
| GERMANY FEDERAL REPUBLIC | Signature | 27/02/1953 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 04/09/1953 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 05/10/1953 | |
| Gibraltar | Extension | 12/11/1956 | |
| GREECE | Signature | 27/02/1953 | |
| GREECE | Ratification | 21/04/1956 | |
| IRELAND, REPUBLIC OF | Signature | 27/02/1953 | |
| IRELAND, REPUBLIC OF | Ratification | 12/11/1953 | |
| ISRAEL | Accession | 23/10/1956 | |
| ITALY | Signature | 08/06/1966 | |
| ITALY | Ratification | 19/07/1966 | |
| Land Berlin | Extension | 05/10/1953 | |
| LIECHTENSTEIN | Signature | 27/02/1953 | |
| LIECHTENSTEIN | Ratification | 31/12/1953 | |
| LUXEMBOURG | Signature | 27/02/1953 | |
| LUXEMBOURG | Ratification | 29/06/1954 | |
| Malta | Extension | 12/11/1956 | |
| MONTENEGRO | Succession | 01/08/2006 | 03/06/2006 |
| Morocco | Extension | 16/09/1953 | |
| Nauru | Accession | 24/11/1954 | |
| NETHERLANDS THE | Accession | 01/08/1958 | |
| NETHERLANDS THE | Declaration | 03/03/1959 | |
| NETHERLANDS THE | Declaration | 10/06/1959 | |
| NETHERLANDS THE | Declaration | 24/06/1959 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | 01/01/1986 |
| Netherlands West Indies | Extension | 12/11/1956 | |
| New Guinea | Extension | 24/11/1954 | |
| New Guinea | Extension | 10/06/1959 | |
| NEW ZEALAND | Accession | 04/10/1955 | |
| NEW ZEALAND | Declaration | 04/10/1955 | |
| Niue Island | Extension | 04/10/1955 | |
| Norfolk Island | Extension | 24/11/1954 | |
| Northern Rhodesia | Extension | 01/10/1954 | |
| NORWAY | Signature | 27/02/1953 | |
| NORWAY | Ratification | 08/10/1953 | |
| Nyasaland | Extension | 01/10/1954 | |
| PAKISTAN | Signature | 27/02/1953 | |
| PAKISTAN | Ratification | 27/10/1953 | |
| Papua | Extension | 24/11/1954 | |
| PERSIA | Accession | 22/12/1953 | |
| PERU | Accession | 02/12/1955 | |
| Ruanda Urundi | Extension | 18/01/1954 | |
| Sint Maarten | Extension | 10/10/2010 | |
| SOUTH AFRICA | Signature | 27/02/1953 | |
| SOUTH AFRICA | Ratification | 01/01/1954 | |
| SOUTH AFRICA | Declaration | 01/01/1954 | |
| Southern Rhodesia | Extension | 16/09/1953 | |
| SPAIN | Signature | 27/02/1953 | |
| SPAIN | Ratification | 25/08/1954 | |
| Suriname | Extension | 03/03/1959 | |
| SWEDEN | Signature | 27/02/1953 | |
| SWEDEN | Ratification | 16/09/1953 | |
| SWITZERLAND | Signature | 27/02/1953 | |
| SWITZERLAND | Ratification | 31/12/1953 | |
| SYRIA | Accession | 08/07/1960 | |
| THAILAND | Accession | 20/12/1958 | |
| Tokelau Islands | Extension | 04/10/1955 | |
| TRIESTE UK-US ZONE | Accession | 04/06/1953 | |
| TRIESTE YUGOSLAVIA | Accession | 31/03/1954 | |
| Tunisia | Extension | 16/09/1953 | |
| UNITED KINGDOM | Signature | 27/02/1953 | |
| UNITED KINGDOM | Ratification | 04/09/1953 | |
| UNITED KINGDOM | Declaration | 16/09/1953 | |
| UNITED KINGDOM | Declaration | 01/04/1954 | |
| UNITED KINGDOM | Declaration | 01/10/1954 | |
| UNITED KINGDOM | Declaration | 12/11/1956 | |
| UNITED STATES OF AMERICA | Signature | 27/02/1953 | |
| UNITED STATES OF AMERICA | Ratification | 16/09/1953 | |
| Western Samoa | Extension | 04/10/1955 | |
| YUGOSLAVIA | Signature | 27/02/1953 | |
| YUGOSLAVIA | Ratification | 15/03/1956 | |
| Zanzibar | Extension | 12/11/1956 |