| Country | Action | Action Date | Effective Date |
|---|
| BULGARIA | Ratification | 29/12/1949 | |
| CZECH REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Ratification | 19/09/1938 | |
| DJIBOUTI | Succession | 03/08/1978 | |
| FRANCE | Ratification | 25/01/1938 | |
| FRANCE | Application | 27/11/1974 | |
| IRELAND, REPUBLIC OF | Ratification | 10/06/1937 | |
| MALTA | Ratification | 09/06/1988 | 09/06/1989 |
| MEXICO | Ratification | 21/02/1938 | |
| NEW ZEALAND | Ratification | 29/03/1938 | |
| NEW ZEALAND | Denunciation | 09/06/1989 | 09/06/1990 |
| NORWAY | Ratification | 21/07/1936 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| UNITED KINGDOM | | | |