| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Signature | 11/07/1952 | |
| ALBANIA | Ratification | 12/02/1955 | |
| ALGERIA | Signature | 11/07/1952 | |
| Antilles And Suriname | Signature | 11/07/1952 | |
| Antilles And Suriname | Ratification | 29/04/1954 | |
| ARGENTINA | Signature | 11/07/1952 | |
| ARGENTINA | Ratification | 16/03/1955 | |
| AUSTRIA | Signature | 11/07/1952 | |
| AUSTRIA | Ratification | 09/03/1954 | |
| Belgian Congo | Signature | 11/07/1952 | |
| Belgian Congo | Ratification | 12/03/1953 | |
| BELGIUM | Signature | 11/07/1952 | |
| BELGIUM | Ratification | 12/03/1953 | |
| BOLIVIA | Signature | 11/07/1952 | |
| BRAZIL | Signature | 11/07/1952 | |
| BULGARIA | Signature | 11/07/1952 | |
| BULGARIA | Ratification | 02/10/1954 | |
| BURMA | Signature | 11/07/1952 | |
| BURMA | Ratification | 02/08/1955 | |
| BYELORUSSIA S S R | Signature | 11/07/1952 | |
| BYELORUSSIA S S R | Ratification | 22/10/1953 | |
| CAMBODIA | Signature | 11/07/1952 | |
| CAMBODIA | Ratification | 28/07/1953 | |
| CEYLON | Signature | 11/07/1952 | |
| CEYLON | Ratification | 20/12/1953 | |
| Channel Islands | Extension | 01/03/1954 | |
| CHILE | Signature | 11/07/1952 | |
| CHILE | Ratification | 13/12/1955 | |
| CHINA | Signature | 11/07/1952 | |
| CHINA | Ratification | 25/09/1953 | |
| COLOMBIA | Signature | 11/07/1952 | |
| CUBA | Signature | 11/07/1952 | |
| CZECHOSLOVAKIA | Signature | 11/07/1952 | |
| CZECHOSLOVAKIA | Ratification | 15/07/1953 | |
| DENMARK | Signature | 11/07/1952 | |
| DENMARK | Ratification | 20/02/1953 | |
| DOMINICAN REPUBLIC | Signature | 11/07/1952 | |
| EGYPT | Signature | 11/07/1952 | |
| EGYPT | Ratification | 24/03/1955 | |
| FINLAND | Signature | 11/07/1952 | |
| FINLAND | Ratification | 04/11/1953 | |
| FRANCE | Signature | 11/07/1952 | |
| FRANCE | Ratification | 25/06/1954 | |
| GERMANY FEDERAL REPUBLIC | Succession | 21/03/1955 | |
| GHANA | Succession | 10/10/1957 | |
| GREECE | Signature | 11/07/1952 | |
| GREECE | Ratification | 05/04/1954 | |
| HAITI | Signature | 11/07/1952 | |
| HAITI | Ratification | 02/09/1957 | |
| HONDURAS | Signature | 11/07/1952 | |
| HONDURAS | Ratification | 09/09/1957 | |
| HUNGARY | Signature | 11/07/1952 | |
| HUNGARY | Ratification | 03/09/1954 | |
| ICELAND | Signature | 11/07/1952 | |
| ICELAND | Ratification | 06/05/1953 | |
| INDIA | Signature | 11/07/1952 | |
| INDIA | Ratification | 18/10/1953 | |
| INDONESIA | Signature | 11/07/1952 | |
| INDONESIA | Ratification | 16/06/1956 | |
| IRAN | Signature | 11/07/1952 | |
| IRAQ | Signature | 11/07/1952 | |
| IRAQ | Ratification | 08/01/1959 | |
| IRELAND, REPUBLIC OF | Signature | 11/07/1952 | |
| IRELAND, REPUBLIC OF | Ratification | 26/05/1954 | |
| Isle of Man | Extension | 01/03/1954 | |
| ITALY | Signature | 11/07/1952 | |
| ITALY | Ratification | 06/07/1953 | |
| JAPAN | Signature | 11/07/1952 | |
| JAPAN | Ratification | 15/10/1953 | |
| KOREA | Signature | 11/07/1952 | |
| KOREA | Ratification | 10/03/1955 | |
| LAOS | Signature | 11/07/1952 | |
| LAOS | Ratification | 17/04/1953 | |
| LEBANON | Signature | 11/07/1952 | |
| LEBANON | Ratification | 11/05/1953 | |
| LIBYA | Accession | 30/06/1953 | |
| LUXEMBOURG | Signature | 11/07/1952 | |
| LUXEMBOURG | Ratification | 15/07/1953 | |
| MALAYSIA | Succession | 08/10/1958 | |
| MONACO | Succession | 23/03/1956 | |
| MOROCCO | Signature | 11/07/1952 | |
| MOROCCO | Ratification | 21/09/1956 | |
| NETHERLANDS THE | Signature | 11/07/1952 | |
| NETHERLANDS THE | Ratification | 29/04/1954 | |
| New Guinea | Extension | 29/04/1954 | |
| NEW ZEALAND | Signature | 11/07/1952 | |
| NEW ZEALAND | Ratification | 19/02/1955 | |
| NICARAGUA | Signature | 11/07/1952 | |
| NICARAGUA | Ratification | 28/03/1957 | |
| NORWAY | Signature | 11/07/1952 | |
| NORWAY | Ratification | 12/03/1953 | |
| PAKISTAN | Signature | 11/07/1952 | |
| PAKISTAN | Ratification | 24/12/1953 | |
| PARAGUAY | Signature | 11/07/1952 | |
| PARAGUAY | Ratification | 06/08/1957 | |
| POLAND | Signature | 11/07/1952 | |
| POLAND | Ratification | 03/06/1955 | |
| PORTUGAL | Signature | 11/07/1952 | |
| PORTUGAL | Ratification | 27/06/1956 | |
| Portugal, Provinces In West Africa | Signature | 11/07/1952 | |
| Portugal, Provinces In West Africa | Ratification | 27/06/1956 | |
| Provs in E.Africa, Asia and Oceania | Signature | 11/07/1952 | |
| Provs in E.Africa, Asia and Oceania | Ratification | 27/06/1956 | |
| ROUMANIA | Signature | 11/07/1952 | |
| ROUMANIA | Ratification | 27/09/1954 | |
| Ruanda Urundi | Extension | 12/03/1953 | |
| SAN MARINO | Signature | 11/07/1952 | |
| SAN MARINO | Ratification | 14/09/1953 | |
| SOVIET UNION | Signature | 11/07/1952 | |
| SOVIET UNION | Ratification | 24/07/1953 | |
| SPAIN | Signature | 11/07/1952 | |
| SPAIN | Ratification | 12/05/1955 | |
| SWEDEN | Signature | 11/07/1952 | |
| SWEDEN | Ratification | 29/11/1952 | |
| SWITZERLAND | Signature | 11/07/1952 | |
| SWITZERLAND | Ratification | 16/05/1953 | |
| SYRIA | Signature | 11/07/1952 | |
| SYRIA | Ratification | 04/05/1956 | |
| THAILAND | Signature | 11/07/1952 | |
| THAILAND | Ratification | 24/07/1953 | |
| TUNISIA | Signature | 11/07/1952 | |
| TUNISIA | Ratification | 25/06/1954 | |
| TURKEY | Signature | 11/07/1952 | |
| TURKEY | Ratification | 12/11/1955 | |
| UKRAINE S S R | Signature | 11/07/1952 | |
| UKRAINE S S R | Ratification | 22/10/1953 | |
| UNITED KINGDOM | Signature | 11/07/1952 | |
| UNITED KINGDOM | Ratification | 01/03/1954 | |
| UNITED KINGDOM | Ratification | 19/03/1954 | |
| URUGUAY | Signature | 11/07/1952 | |
| VATICAN CITY | Signature | 11/07/1952 | |
| VATICAN CITY | Ratification | 23/09/1953 | |
| VENEZUELA | Signature | 11/07/1952 | |
| VIETNAM | Signature | 11/07/1952 | |
| VIETNAM | Ratification | 12/09/1953 | |
| YUGOSLAVIA | Signature | 11/07/1952 | |
| YUGOSLAVIA | Ratification | 21/06/1955 | |