| Country | Action | Action Date | Effective Date |
|---|
| Aruba | Application | 01/01/1986 | |
| AUSTRIA | Accession | 28/06/1948 | |
| BELGIUM | Signature | 08/02/1947 | |
| BELGIUM | Ratification | 31/12/1947 | |
| BRAZIL | Signature | 08/02/1947 | |
| BRAZIL | Ratification | 15/05/1948 | |
| Ceylon | Extension | 11/11/1947 | |
| CEYLON | Accession | 09/02/1953 | |
| CUBA | Accession | 12/04/1949 | |
| CZECHOSLOVAKIA | Signature | 08/02/1947 | |
| CZECHOSLOVAKIA | Ratification | 31/07/1947 | |
| CZECHOSLOVAKIA | Declaration | 31/07/1947 | |
| DENMARK | Signature | 08/02/1947 | |
| DENMARK | Ratification | 16/07/1947 | |
| DOMINICAN REPUBLIC | Accession | 23/05/1947 | |
| FINLAND | Signature | 08/02/1947 | |
| FINLAND | Ratification | 26/06/1947 | |
| FRANCE | Signature | 08/02/1947 | |
| FRANCE | Ratification | 04/08/1947 | |
| GREECE | Signature | 08/02/1947 | |
| GREECE | Ratification | 19/06/1948 | |
| HUNGARY | Signature | 08/02/1947 | |
| HUNGARY | Ratification | 22/11/1947 | |
| Indonesia | Extension | 01/01/1905 | |
| IRELAND, REPUBLIC OF | Signature | 08/02/1947 | |
| IRELAND, REPUBLIC OF | Ratification | 10/01/1948 | |
| ISRAEL | Accession | | 24/03/1950 |
| ITALY | Signature | 08/02/1947 | |
| ITALY | Ratification | 16/12/1947 | |
| LEBANON | Signature | 08/02/1947 | |
| LEBANON | Ratification | 09/12/1947 | |
| LIECHTENSTEIN | Signature | 08/02/1947 | |
| LIECHTENSTEIN | Ratification | 14/11/1947 | |
| LUXEMBOURG | Signature | 08/02/1947 | |
| LUXEMBOURG | Ratification | 26/12/1947 | |
| MOROCCO | Signature | 08/02/1947 | |
| Morocco | Accession | 26/07/1947 | |
| MOROCCO | Ratification | 04/08/1947 | |
| NETHERLANDS THE | Signature | 08/02/1947 | |
| NETHERLANDS THE | Ratification | 30/12/1947 | |
| NEW ZEALAND | Signature | 08/02/1947 | |
| NEW ZEALAND | Ratification | 22/09/1947 | |
| NORWAY | Signature | 08/02/1947 | |
| NORWAY | Ratification | 30/05/1947 | |
| Palestine | Accession | 19/05/1947 | |
| POLAND | Signature | 08/02/1947 | |
| POLAND | Ratification | 03/12/1947 | |
| PORTUGAL | Signature | 08/02/1947 | |
| PORTUGAL | Ratification | 10/11/1947 | |
| ROUMANIA | Signature | 08/02/1947 | |
| SOUTH AFRICA | Accession | 01/12/1947 | |
| SPAIN | Accession | 19/07/1947 | |
| Spanish Colonies | Accession | 15/12/1947 | |
| SWEDEN | Signature | 08/02/1947 | |
| SWEDEN | Ratification | 20/06/1947 | |
| SWITZERLAND | Signature | 08/02/1947 | |
| SWITZERLAND | Ratification | 03/04/1947 | 23/05/1947 |
| SYRIA | Signature | 08/02/1947 | |
| SYRIA | Ratification | 06/01/1948 | 06/01/1948 |
| Tanganyika | Accession | 11/06/1947 | |
| TANGIER | Accession | 26/02/1948 | |
| Trinidad And Tobago | Accession | 13/05/1947 | |
| TUNISIA | Signature | 08/02/1947 | |
| TUNISIA | Ratification | 04/08/1947 | |
| TURKEY | Signature | 08/02/1947 | |
| TURKEY | Ratification | 22/09/1947 | |
| UNITED KINGDOM | Signature | 08/02/1947 | |
| UNITED KINGDOM | Ratification | 23/05/1947 | |
| Western Samoa | Extension | 22/09/1947 | |