| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Approval | 19/10/1984 | |
| AUSTRALIA | Approval | 21/03/1985 | |
| BELGIUM | Approval | 26/11/1986 | |
| GERMAN DEMOCRATIC REPUBLIC | Approval | 23/08/1988 | |
| GERMANY FEDERAL REPUBLIC | Approval | 09/07/1985 | |
| JAPAN | Approval | 17/06/1985 | |
| NEW ZEALAND | Approval | 26/06/1985 | |
| NORWAY | Approval | 12/06/1985 | |
| POLAND | Approval | 08/09/1989 | |
| SOUTH AFRICA | Approval | 15/04/1986 | |
| SOVIET UNION | Approval | 26/02/1986 | |
| UNITED KINGDOM | Approval | 16/04/1987 | |
| UNITED STATES OF AMERICA | Approval | 25/04/1985 |