| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Approval | 20/09/1961 | |
| AUSTRALIA | Approval | 06/10/1961 | |
| BELGIUM | Approval | 16/02/1962 | |
| BRAZIL | Approval | 27/10/1986 | |
| Caribbean part of the Netherlands | |||
| CHILE | Approval | 19/04/1962 | |
| CHINA | Approval | 11/12/1985 | |
| FRANCE | Approval | 06/03/1962 | |
| GERMAN DEMOCRATIC REPUBLIC | Approval | 23/08/1988 | |
| GERMANY FEDERAL REPUBLIC | Approval | 17/02/1981 | |
| JAPAN | Approval | 21/02/1962 | |
| NEW ZEALAND | Approval | 04/10/1961 | |
| NORWAY | Approval | 02/03/1962 | |
| POLAND | Approval | 11/07/1977 | |
| SOUTH AFRICA | Approval | 30/04/1962 | |
| SOVIET UNION | Approval | 15/12/1961 | |
| UNITED KINGDOM | Approval | 01/12/1961 | |
| UNITED STATES OF AMERICA | Approval | 12/12/1961 |