| Country | Action | Action Date | Effective Date |
|---|
| ARGENTINA | Acceptance | 06/02/1961 | 01/01/1900 |
| AUSTRIA | Acceptance | 17/02/1961 | 01/01/1900 |
| BELGIUM | Acceptance | 24/04/1962 | 01/01/1900 |
| BULGARIA | Acceptance | 01/10/1980 | 01/01/1900 |
| CANADA | Acceptance | 28/11/1962 | 01/01/1900 |
| CHINA | Acceptance | 01/10/1980 | 01/01/1900 |
| FRANCE | Acceptance | 17/03/1961 | 01/01/1900 |
| GERMANY FEDERAL REPUBLIC | Acceptance | 15/05/1961 | 01/01/1900 |
| Guernsey, Bailiwick of | Extension | 03/04/1962 | 01/01/1900 |
| HUNGARY | Acceptance | 23/11/1970 | 01/01/1900 |
| INDIA | Acceptance | 17/02/1964 | 01/01/1900 |
| IRAN | Acceptance | 06/03/1961 | 01/01/1900 |
| IRAQ | Acceptance | 07/06/1977 | 01/01/1900 |
| IRELAND, REPUBLIC OF | Acceptance | 04/07/1961 | 01/01/1900 |
| Isle of Man | Extension | 03/04/1962 | 01/01/1900 |
| ITALY | Acceptance | 28/11/1962 | 01/01/1900 |
| JAPAN | Acceptance | 23/01/1968 | 01/01/1900 |
| Jersey, Bailiwick of | Extension | 03/04/1962 | 01/01/1900 |
| KOREA | Acceptance | 16/01/1973 | 01/01/1900 |
| Land Berlin | Extension | 01/03/1968 | 01/01/1900 |
| LEBANON | Acceptance | 23/01/1961 | 01/01/1900 |
| MOROCCO | Acceptance | 07/09/1962 | 01/01/1900 |
| NETHERLANDS THE | Acceptance | 22/12/1961 | 01/01/1900 |
| NEW ZEALAND | Acceptance | 19/06/1969 | 01/01/1900 |
| PAKISTAN | Acceptance | 06/07/1962 | 01/01/1900 |
| PORTUGAL | Acceptance | 19/08/1963 | 01/01/1900 |
| ROMANIA | Acceptance | 28/01/1964 | 01/01/1900 |
| SPAIN | Acceptance | 21/04/1960 | 01/01/1900 |
| SWITZERLAND | Acceptance | 23/02/1961 | 01/01/1900 |
| SYRIA | Acceptance | 19/12/1961 | 01/01/1900 |
| TUNISIA | Acceptance | 04/04/1961 | 01/01/1900 |
| TURKEY | Acceptance | 27/07/1965 | 01/01/1900 |
| UNITED ARAB EMIRATES | Acceptance | 26/09/1961 | 01/01/1900 |
| UNITED KINGDOM | Acceptance | 03/04/1962 | |
| UNITED KINGDOM | Declaration | 03/04/1962 | 01/01/1900 |
| UNITED STATES OF AMERICA | Acceptance | 13/08/1970 | 01/01/1900 |
| YUGOSLAVIA | Acceptance | 11/01/1961 | 01/01/1900 |