| Country | Action | Action Date | Effective Date |
|---|
| Aden Colony | Extension | 26/07/1939 | 26/07/1939 |
| Channel Islands | Extension | 26/04/1935 | 01/01/1900 |
| Cyprus | Extension | 03/09/1931 | |
| Isle of Man | Extension | 26/04/1935 | 01/01/1900 |
| Mauritius | Extension | 16/12/1931 | 16/12/1931 |
| Northern Ireland | Extension | 23/04/1931 | 23/04/1931 |
| Scotland | Accession | 12/06/1931 | 01/01/1900 |
| Seychelles | Extension | 16/12/1931 | 16/12/1931 |
| SWEDEN | Signature | 28/08/1930 | |
| UNITED KINGDOM | Signature | 28/08/1930 | |
| UNITED KINGDOM | Ratification | 16/01/1931 | 16/02/1931 |
| UNITED KINGDOM | Extension | 03/08/1931 | 03/09/1931 |
| Western Pacific Islands | Extension | | 30/12/1931 |