| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Bahamas | |||
| Barbados | |||
| Ceylon | |||
| Falkland Islands | |||
| Gambia | |||
| Gold Coast | |||
| Hong Kong | |||
| Leeward Islands | |||
| Malta | |||
| Mauritius | |||
| New Zealand | |||
| Newfoundland (UK) | |||
| Nigeria, South | |||
| Seychelles | |||
| Sierra Leone | |||
| St Helena | |||
| Straits Settlements | |||
| Trinidad | |||
| UNITED KINGDOM | Signature | 15/07/1899 | |
| UNITED KINGDOM | Ratification | 28/04/1900 | |
| URUGUAY | Signature | 15/07/1899 | |
| URUGUAY | Ratification | 09/06/1900 |