| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Accession | 24/03/1958 | |
| AUSTRALIA | Accession | 13/01/1955 | |
| AUSTRALIA | Declaration | 13/01/1955 | |
| Belgian Congo | Extension | 30/06/1958 | |
| BELGIUM | Accession | 30/06/1958 | |
| BELGIUM | Extension | 30/06/1958 | |
| BRAZIL | Accession | 03/11/1959 | |
| CAMBODIA | Signature | 29/12/1953 | |
| CAMBODIA | Declaration | 29/12/1953 | |
| CAMBODIA | Ratification | 22/03/1957 | |
| CAMEROON | Accession | 15/01/1962 | |
| CANADA | Signature | 23/12/1953 | |
| CANADA | Ratification | 07/05/1954 | |
| CENTRAL AFRICAN REPUBLIC | Accession | 04/09/1962 | |
| CEYLON | Accession | 04/12/1957 | |
| CHILE | Signature | 09/07/1953 | |
| CHILE | Ratification | 09/05/1957 | |
| CHINA | Signature | 18/09/1953 | |
| CHINA | Ratification | 25/05/1954 | |
| CONGO | Succession | 15/10/1962 | |
| Cook Islands | Extension | 02/11/1956 | |
| Cook Islands | Denunciation | 17/12/1968 | 01/01/1969 |
| COSTA RICA | Signature | 16/10/1953 | |
| CUBA | Accession | 08/09/1954 | |
| DENMARK | Signature | 23/06/1953 | |
| DENMARK | Ratification | 20/07/1954 | |
| DOMINICAN REPUBLIC | Signature | 23/06/1953 | |
| DOMINICAN REPUBLIC | Ratification | 09/06/1958 | |
| ECUADOR | Signature | 23/06/1953 | |
| ECUADOR | Ratification | 17/08/1955 | |
| EGYPT | Signature | 23/06/1953 | |
| EGYPT | Ratification | 08/03/1954 | |
| FRANCE | Signature | 23/06/1953 | |
| FRANCE | Ratification | 21/04/1954 | |
| FRANCE | Declaration | 21/04/1954 | |
| GERMANY FEDERAL REPUBLIC | Signature | 23/06/1953 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 12/08/1959 | |
| GERMANY FEDERAL REPUBLIC | Communication | 27/04/1960 | |
| GREECE | Signature | 23/06/1953 | |
| GREECE | Ratification | 06/02/1963 | |
| GUATEMALA | Accession | 29/05/1956 | |
| INDIA | Signature | 23/06/1953 | |
| INDIA | Ratification | 30/04/1954 | |
| INDIA | Declaration | 30/04/1954 | |
| INDONESIA | Accession | 11/07/1957 | |
| ISRAEL | Signature | 30/12/1953 | |
| ISRAEL | Ratification | 08/10/1957 | |
| ITALY | Signature | 23/06/1953 | |
| ITALY | Ratification | 13/11/1957 | |
| IVORY COAST | Accession | 08/12/1961 | |
| JAPAN | Signature | 23/06/1953 | |
| JAPAN | Ratification | 21/07/1954 | |
| JORDAN | Accession | 07/05/1958 | |
| KOREA REPUBLIC OF | Signature | 23/06/1953 | |
| KOREA REPUBLIC OF | Ratification | 29/04/1958 | |
| Land Berlin | Extension | 27/04/1960 | 08/03/1963 |
| LEBANON | Signature | 11/11/1953 | |
| LIECHTENSTEIN | Signature | 23/06/1953 | |
| LIECHTENSTEIN | Ratification | 24/05/1961 | |
| LUXEMBOURG | Accession | 28/06/1955 | |
| MADAGASCAR | Succession | 31/07/1963 | |
| MONACO | Signature | 26/06/1953 | |
| MONACO | Ratification | 12/04/1956 | |
| MONTENEGRO | Succession to Signature | 23/10/2006 | |
| Nauru | Extension | 13/01/1955 | |
| NETHERLANDS THE | Signature | 30/12/1953 | |
| New Guinea | Extension | 13/01/1955 | |
| NEW ZEALAND | Signature | 28/12/1953 | |
| NEW ZEALAND | Ratification | 02/11/1956 | |
| NEW ZEALAND | Denunciation | 17/12/1968 | 01/01/1969 |
| NICARAGUA | Accession | 11/12/1959 | |
| NIGER | Succession | 07/12/1964 | |
| Niue Island | Extension | 02/11/1956 | |
| Niue Island | Denunciation | 17/12/1968 | 01/01/1969 |
| Norfolk Island | Extension | 13/01/1955 | |
| PAKISTAN | Signature | 03/12/1953 | |
| PAKISTAN | Ratification | 10/03/1955 | |
| PAKISTAN | Declaration | 10/03/1955 | |
| PANAMA | Signature | 28/12/1953 | |
| PANAMA | Ratification | 13/04/1954 | |
| Papua | Extension | 13/01/1955 | |
| PAPUA NEW GUINEA | Succession | 28/10/1980 | |
| PARAGUAY | Accession | 15/08/2001 | 14/09/2001 |
| PERSIA | Signature | 15/12/1953 | |
| PERSIA | Ratification | 30/12/1959 | |
| PHILIPPINES | Signature | 23/06/1953 | |
| PHILIPPINES | Ratification | 01/06/1955 | |
| Ruanda Urundi | Extension | 30/06/1958 | |
| RWANDA | Succession | 30/04/1964 | |
| SALVADOR | Accession | 31/12/1959 | |
| SENEGAL | Succession | 02/05/1963 | |
| SOUTH AFRICA | Signature | 29/12/1953 | |
| SOUTH AFRICA | Ratification | 09/03/1960 | |
| SPAIN | Signature | 22/10/1953 | |
| SPAIN | Ratification | 15/06/1956 | |
| SWEDEN | Accession | 16/01/1958 | |
| SWITZERLAND | Signature | 23/06/1953 | |
| SWITZERLAND | Ratification | 27/11/1956 | |
| Tokelau Islands | Extension | 02/11/1956 | |
| Tokelau Islands | Denunciation | 17/12/1968 | 01/01/1969 |
| TURKEY | Signature | 28/12/1953 | |
| TURKEY | Ratification | 15/07/1963 | |
| UNITED KINGDOM | Signature | 23/06/1953 | |
| UNITED STATES OF AMERICA | Signature | 23/06/1953 | |
| UNITED STATES OF AMERICA | Ratification | 18/02/1955 | |
| UNITED STATES OF AMERICA | Declaration | 18/02/1955 | |
| VENEZUELA | Signature | 30/12/1953 | |
| Western Samoa | Extension | 02/11/1956 | |
| YUGOSLAVIA | Signature | 24/06/1953 | |
| YUGOSLAVIA | Objection | 30/12/1959 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAIRE | Succession | 31/05/1962 |