| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Signature | 15/09/1948 | |
| ALBANIA | Ratification | 10/07/1950 | |
| ALBANIA | Withdrawal | 10/04/1980 | |
| AUSTRIA | Statement | 15/09/1948 | |
| BELGIUM | Signature | 15/09/1948 | |
| BELGIUM | Statement | 15/09/1948 | |
| BELGIUM | Ratification | 06/12/1949 | |
| BELGIUM | Withdrawal | 08/03/1977 | |
| BULGARIA | Signature | 15/09/1948 | |
| BULGARIA | Statement | 15/09/1948 | |
| BULGARIA | Ratification | 28/02/1950 | |
| BULGARIA | Withdrawal | 10/03/1979 | |
| BYELORUSSIA S S R | Signature | 15/09/1948 | |
| BYELORUSSIA S S R | Statement | 15/09/1948 | |
| BYELORUSSIA S S R | Ratification | 20/07/1950 | |
| BYELORUSSIA S S R | Withdrawal | 10/06/1979 | |
| Cyprus | Extension | 15/12/1949 | |
| CZECHOSLOVAKIA | Signature | 15/09/1948 | |
| CZECHOSLOVAKIA | Statement | 15/09/1948 | |
| CZECHOSLOVAKIA | Ratification | 10/06/1950 | |
| CZECHOSLOVAKIA | Withdrawal | 11/07/1978 | |
| DENMARK | Signature | 15/09/1948 | |
| DENMARK | Statement | 15/09/1948 | |
| DENMARK | Ratification | 02/02/1949 | |
| DENMARK | Withdrawal | 10/08/1979 | |
| EGYPT | Statement | 15/09/1948 | |
| FINLAND | Signature | 15/09/1948 | |
| FINLAND | Statement | 15/09/1948 | |
| FINLAND | Ratification | 07/06/1950 | |
| FINLAND | Withdrawal | 10/11/1978 | |
| FRANCE | Signature | 15/09/1948 | |
| FRANCE | Statement | 15/09/1948 | |
| FRANCE | Declaration | 17/03/1950 | |
| FRANCE | Ratification | 17/03/1950 | |
| FRANCE | Withdrawal | 10/11/1978 | |
| Gibraltar | Extension | 15/12/1949 | |
| GREECE | Signature | 15/09/1948 | |
| GREECE | Statement | 15/09/1948 | |
| GREECE | Ratification | 28/12/1951 | |
| GREECE | Withdrawal | 27/11/1985 | |
| HOLY SEE | Signature | 15/09/1948 | |
| HOLY SEE | Ratification | 16/09/1954 | |
| HOLY SEE | Withdrawal | 26/01/1978 | |
| HUNGARY | Signature | 15/09/1948 | |
| HUNGARY | Statement | 15/09/1948 | |
| HUNGARY | Ratification | 14/04/1950 | |
| HUNGARY | Withdrawal | 09/09/1977 | |
| ICELAND | Statement | 15/09/1948 | |
| IRELAND, REPUBLIC OF | Signature | 15/09/1948 | |
| IRELAND, REPUBLIC OF | Statement | 15/09/1948 | |
| IRELAND, REPUBLIC OF | Ratification | 17/07/1950 | |
| IRELAND, REPUBLIC OF | Withdrawal | 10/03/1979 | |
| ITALY | Signature | 15/09/1948 | |
| ITALY | Statement | 15/09/1948 | |
| ITALY | Ratification | 04/06/1952 | |
| ITALY | Withdrawal | 10/08/1979 | |
| Malta | Extension | 15/12/1949 | |
| MONACO | Signature | 15/09/1948 | |
| MONACO | Ratification | 29/06/1950 | |
| MONACO | Withdrawal | 10/03/1979 | |
| Morocco | Statement | 15/09/1948 | |
| Morocco | Extension | 17/03/1950 | |
| Morocco | Withdrawal | 10/08/1979 | |
| MOROCCO | Withdrawal | 10/08/1979 | |
| NETHERLANDS THE | Signature | 15/09/1948 | |
| NETHERLANDS THE | Statement | 15/09/1949 | |
| NETHERLANDS THE | Ratification | 06/10/1949 | |
| NETHERLANDS THE | Withdrawal | 10/11/1978 | |
| NORWAY | Signature | 15/09/1948 | |
| NORWAY | Statement | 15/09/1948 | |
| NORWAY | Ratification | 14/02/1950 | |
| NORWAY | Withdrawal | 11/04/1977 | |
| POLAND | Signature | 15/09/1948 | |
| POLAND | Statement | 15/09/1948 | |
| POLAND | Ratification | 14/04/1950 | |
| POLAND | Withdrawal | 10/03/1979 | |
| PORTUGAL | Signature | 15/09/1948 | |
| PORTUGAL | Reservation | 15/09/1948 | |
| ROMANIA | Signature | 15/09/1948 | |
| ROMANIA | Reservation | 15/09/1948 | |
| ROMANIA | Ratification | 29/06/1950 | |
| ROMANIA | Withdrawal | 10/06/1979 | |
| SOVIET UNION | Signature | 15/09/1948 | |
| SOVIET UNION | Statement | 15/09/1948 | |
| SOVIET UNION | Ratification | 04/03/1950 | |
| SOVIET UNION | Withdrawal | 10/03/1979 | |
| SWEDEN | Statement | 15/09/1948 | |
| SWITZERLAND | Signature | 15/09/1948 | |
| SWITZERLAND | Ratification | 10/02/1950 | |
| SWITZERLAND | Withdrawal | 10/08/1979 | |
| SYRIA | Statement | 15/09/1948 | |
| Tunisia | Statement | 15/09/1948 | |
| Tunisia | Extension | 17/03/1950 | |
| Tunisia | Withdrawal | 10/11/1979 | |
| TUNISIA | Withdrawal | 10/11/1979 | |
| TURKEY | Statement | 15/09/1948 | |
| UKRAINE S S R | Signature | 15/09/1948 | |
| UKRAINE S S R | Statement | 15/09/1948 | |
| UKRAINE S S R | Ratification | 20/07/1950 | |
| UKRAINE S S R | Withdrawal | 10/08/1979 | |
| UNITED KINGDOM | Signature | 15/09/1948 | |
| UNITED KINGDOM | Statement | 15/09/1948 | |
| UNITED KINGDOM | Declaration | 15/07/1949 | |
| UNITED KINGDOM | Ratification | 15/12/1949 | |
| UNITED KINGDOM | Withdrawal | 29/09/1978 | |
| UNITED STATES OF AMERICA | Statement | 15/09/1948 | |
| YUGOSLAVIA | Signature | 15/09/1948 | |
| YUGOSLAVIA | Statement | 15/09/1948 | |
| YUGOSLAVIA | Ratification | 02/06/1950 | |
| YUGOSLAVIA | Withdrawal | 10/08/1979 | |