| Country | Action | Action Date | Effective Date |
|---|
| Antigua | Extension | 01/01/1955 | |
| Antigua | Termination | 25/06/1987 | |
| Barbados | Extension | 01/01/1955 | |
| Barbados | Termination | 25/06/1987 | |
| British Honduras | Extension | 01/01/1955 | |
| British Solomon Islands | Extension | 01/01/1955 | |
| British Solomon Islands | Termination | 25/06/1987 | |
| British Virgin Islands | Extension | 01/01/1955 | |
| British Virgin Islands | Termination | 25/06/1987 | |
| Cyprus | Extension | 01/01/1955 | |
| Dominica | Extension | 01/01/1955 | |
| Dominica | Termination | 25/06/1987 | |
| Falkland Islands | Extension | 01/01/1955 | |
| Falkland Islands | Termination | 25/06/1987 | |
| Fiji | Extension | 01/01/1955 | |
| Gilbert And Ellice Islands | Extension | 01/01/1955 | |
| Gold Coast | Extension | 01/04/1955 | |
| Grenada | Extension | 01/01/1955 | |
| Grenada | Termination | 25/06/1987 | |
| Jamaica | Extension | 01/01/1955 | |
| Malaya | Extension | 01/01/1955 | |
| MAURITIUS | Extension | 01/07/1955 | |
| MAURITIUS | Termination | 25/06/1987 | |
| Montserrat | Extension | 01/01/1955 | |
| Montserrat | Termination | 25/06/1987 | |
| Netherlands West Indies | Extension | 01/04/1955 | |
| Nigeria | Extension | 01/04/1955 | |
| North Borneo | Extension | 01/01/1955 | |
| NORWAY | | | |
| Seychelles | Extension | 01/01/1955 | |
| Sierra Leone | Extension | 01/04/1955 | |
| Singapore | Extension | 01/01/1955 | |
| Singapore | Termination | 28/06/1961 | |
| St Christopher, Nevis and Anguilla | Extension | 01/01/1955 | |
| St Christopher, Nevis and Anguilla | Termination | 25/06/1987 | |
| St Lucia | Extension | 01/01/1955 | |
| St Lucia | Termination | 25/06/1987 | |
| St Vincent | Extension | 01/01/1955 | |
| St Vincent | Termination | 25/06/1987 | |
| The Gambia | Extension | 01/01/1955 | |
| Trinidad And Tobago | Extension | 01/01/1955 | |
| UNITED KINGDOM | Signature | 18/05/1955 | |