| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Angola | Extension | 15/02/1957 | |
| AUSTRIA | Signature | 19/09/1949 | |
| AUSTRIA | Ratification | 02/11/1955 | |
| BELGIUM | Signature | 19/09/1949 | |
| BELGIUM | Ratification | 23/04/1954 | |
| BELGIUM | Extension | 23/04/1954 | |
| BULGARIA | Accession | 13/02/1963 | |
| BURKINA FASO | Accession | 31/08/2009 | 30/11/2010 |
| CAMBODIA | Accession | 14/03/1956 | |
| CUBA | Accession | 01/10/1952 | |
| CZECH REPUBLIC | Succession | 02/06/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 19/09/1949 | |
| CZECHOSLOVAKIA | Ratification | 03/11/1950 | |
| DENMARK | Signature | 19/09/1949 | |
| DENMARK | Ratification | 01/07/1959 | |
| DOMINICAN REPUBLIC | Accession | 15/08/1957 | |
| ECUADOR | Accession | 26/09/1962 | |
| EGYPT | Signature | 19/09/1949 | |
| EGYPT | Ratification | 28/05/1957 | |
| FINLAND | Accession | 24/09/1958 | |
| FINLAND | Declaration | 24/09/1958 | |
| FRANCE | Signature | 19/09/1949 | |
| FRANCE | Ratification | 18/08/1954 | |
| FRANCE | Communication | 01/01/1961 | |
| GREECE | Communication | 01/01/1905 | |
| GREECE | Accession | 01/07/1952 | |
| HAITI | Accession | 12/02/1958 | |
| HUNGARY | Accession | 30/07/1962 | |
| HUNGARY | Reservation | 30/07/1962 | |
| HUNGARY | Withdrawal Res. | 08/12/1989 | |
| INDIA | Signature | 19/09/1949 | |
| ISRAEL | Signature | 19/09/1949 | |
| ITALY | Signature | 19/09/1949 | |
| ITALY | Ratification | 15/12/1952 | |
| KYRGYZSTAN | Accession | 22/03/1994 | 22/06/1995 |
| LEBANON | Signature | 19/09/1949 | |
| LUXEMBOURG | Signature | 19/09/1949 | |
| LUXEMBOURG | Ratification | 17/10/1952 | |
| MONACO | Accession | 25/09/1951 | |
| MONTENEGRO | Succession | 23/10/2006 | 03/06/2006 |
| Mozambique | Extension | 15/02/1957 | |
| NETHERLANDS THE | Extension | 01/01/1986 | |
| NETHERLANDS THE | Signature | 19/09/1949 | |
| NETHERLANDS THE | Ratification | 19/09/1952 | |
| NETHERLANDS THE | Extension | 14/01/1955 | |
| NETHERLANDS THE | Extension | 09/05/1957 | 01/01/1986 |
| NIGER | Accession | 05/03/1968 | |
| NORWAY | Signature | 19/09/1949 | |
| POLAND | Accession | 29/10/1958 | |
| PORTUGAL | Extension | 15/02/1957 | |
| PORTUGAL | Accession | 15/02/1957 | |
| ROMANIA | Accession | 26/01/1961 | |
| ROMANIA | Reservation | 26/01/1961 | |
| RWANDA | Accession | 05/08/1964 | |
| SAN MARINO | Accession | 19/03/1962 | |
| SENEGAL | Accession | 13/07/1962 | |
| SLOVAK REPUBLIC | Accession | 28/05/1993 | 01/01/1993 |
| SOVIET UNION | Accession | 17/08/1959 | |
| SOVIET UNION | Reservation | 17/08/1959 | |
| SPAIN | Accession | 13/02/1958 | |
| SWEDEN | Communication | 01/01/1905 | |
| SWEDEN | Signature | 19/09/1949 | |
| SWEDEN | Ratification | 25/02/1952 | |
| SWEDEN | Reservation | 25/02/1952 | |
| SWITZERLAND | Signature | 19/09/1949 | |
| THAILAND | Accession | 15/08/1962 | |
| THAILAND | Reservation | 15/08/1962 | |
| TUNISIA | Accession | 08/11/1957 | |
| UGANDA | Accession | 15/04/1965 | |
| UNITED KINGDOM | Ratification | 16/05/1966 | |
| UNITED KINGDOM | Accession | 16/05/1966 | |
| VATICAN CITY | Accession | 01/10/1956 | |
| YUGOSLAVIA | Signature | 19/09/1949 | |
| YUGOSLAVIA | Ratification | 08/10/1956 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |