| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Australia | Accession | 22/03/1938 | |
| Burma | Extension | 10/03/1941 | |
| HUNGARY | Signature | 18/09/1936 | |
| Nauru | Accession | 22/03/1938 | |
| New Guinea | Accession | 22/03/1938 | |
| New Zealand | Accession | 14/03/1938 | |
| Norfolk Island (UK) | Accession | 22/03/1938 | |
| Papua | Accession | 22/03/1938 | |
| Solomon Islands Protectorate | Accession | 05/10/1938 | |
| UNITED KINGDOM | Signature | 18/09/1936 | |
| Western Samoa (UK) | Accession | 14/03/1938 | |
| Zanzibar | Accession | 05/10/1938 |