| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Antigua | Extension | 24/02/1959 | |
| AUSTRALIA | Acceptance | 08/09/1953 | |
| AUSTRIA | Acceptance | 22/02/1954 | |
| Bahamas | Extension | 24/02/1959 | |
| Barbados | Extension | 24/02/1959 | |
| Basutoland | Extension | 24/02/1959 | |
| Bechuanaland | Extension | 24/02/1959 | |
| BELGIUM | Signature | 20/05/1952 | |
| BELGIUM | Acceptance | 06/01/1955 | |
| Bermuda | Extension | 24/02/1959 | |
| British Guiana | Extension | 24/02/1959 | |
| British Honduras | Extension | 24/02/1959 | |
| Brunei | Extension | 24/02/1959 | |
| Cyprus | Extension | 24/02/1959 | |
| DENMARK | Signature | 20/05/1952 | |
| Dominica | Extension | 24/02/1959 | |
| EGYPT | Signature | 20/05/1952 | |
| FIJI | Extension | 24/02/1959 | |
| FINLAND | Signature | 20/05/1952 | |
| FRANCE | Signature | 20/05/1952 | |
| GERMANY FEDERAL REPUBLIC | Signature | 20/05/1952 | |
| GERMANY FEDERAL REPUBLIC | Extension | 22/06/1954 | |
| Gilbert And Ellice Islands | Extension | 24/02/1959 | |
| GREECE | Signature | 20/05/1952 | |
| Grenada | Extension | 24/02/1959 | |
| Hong Kong | Extension | 24/02/1959 | |
| ICELAND | Signature | 20/05/1952 | |
| ITALY | Signature | 20/05/1952 | |
| Jamaica | Extension | 24/02/1959 | |
| KENYA | Extension | 24/02/1959 | |
| Leeward Islands | Extension | 24/02/1959 | |
| LUXEMBOURG | Extension | 20/05/1952 | |
| Malta | Extension | 24/02/1959 | |
| MAURITIUS | Extension | 24/02/1959 | |
| Montserrat | Extension | 24/02/1959 | |
| NETHERLANDS THE | Signature | 20/05/1952 | |
| NETHERLANDS THE | Reservation | 18/06/1953 | |
| Netherlands West Indies | Extension | 24/02/1959 | |
| New Hebrides | Extension | 24/02/1959 | |
| Nigeria | Extension | 24/02/1959 | |
| North Borneo | Extension | 24/02/1959 | |
| NORWAY | Extension | 20/05/1952 | |
| Rhodesia And Nyasaland | Extension | 24/02/1959 | |
| Sarawak | Extension | 24/02/1959 | |
| Seychelles | Extension | 24/02/1959 | |
| Sierra Leone | Extension | 24/02/1959 | |
| Singapore | Extension | 24/02/1959 | |
| Solomon Islands | Extension | 24/02/1959 | |
| Solomon Islands Protectorate | Extension | 24/02/1959 | |
| SOUTH AFRICA | Acceptance | 17/10/1953 | |
| SPAIN | Signature | 20/05/1952 | |
| St Helena | Extension | 24/02/1959 | |
| St Kitts Nevis Anguilla | Extension | 24/02/1959 | |
| St Lucia | Extension | 24/02/1959 | |
| Swaziland | Extension | 24/02/1959 | |
| SWEDEN | Signature | 20/05/1952 | |
| SWITZERLAND | Acceptance | 10/03/1953 | |
| Tanganyika | Extension | 24/02/1959 | |
| The Gambia | Extension | 24/02/1959 | |
| Trinidad | Extension | 24/02/1959 | |
| Uganda | Extension | 24/02/1959 | |
| UNITED KINGDOM | Signature | 20/05/1952 | |
| UNITED KINGDOM | Acceptance | 11/08/1955 | |
| UNITED KINGDOM | Extension | 24/02/1959 | |
| UNITED KINGDOM | Extension | 14/07/1959 | |
| UNITED KINGDOM | Reservation | 11/08/1995 | |
| UNITED STATES OF AMERICA | Signature | 20/05/1952 | |
| Windward Islands | Extension | 24/02/1959 | |
| YUGOSLAVIA | Signature | 01/04/1953 | |
| YUGOSLAVIA | Acceptance | 09/02/1954 |