| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BELGIUM | Withdrawal | 20/11/1964 | |
| BELGIUM | Signature | 29/10/1953 | 29/10/1953 |
| PORTUGAL | Signature | 29/10/1953 | 29/10/1953 |
| SOUTH AFRICA | Signature | 29/10/1953 | 29/10/1953 |
| Southern Rhodesia | Signature | 29/10/1953 | 29/10/1953 |
| UNITED KINGDOM | Signature | 29/10/1953 | 29/10/1953 |