| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Approval | 06/11/1979 | |
| AUSTRALIA | Approval | 17/10/1979 | |
| BELGIUM | Approval | 17/07/1978 | |
| BRAZIL | Approval | 27/10/1987 | |
| CHILE | Approval | 27/09/1979 | |
| CHINA | Approval | 11/12/1985 | |
| FRANCE | Approval | 08/09/1983 | |
| GERMAN DEMOCRATIC REPUBLIC | Approval | 23/08/1988 | |
| GERMANY FEDERAL REPUBLIC | Approval | 17/02/1981 | |
| JAPAN | Approval | 28/01/1980 | |
| NEW ZEALAND | Approval | 19/10/1978 | |
| NORWAY | Approval | 25/05/1982 | |
| POLAND | Approval | 12/02/1981 | |
| SOUTH AFRICA | Approval | 17/11/1978 | |
| SOVIET UNION | Approval | 28/06/1979 | |
| UNITED KINGDOM | Approval | 28/06/1979 | |
| UNITED STATES OF AMERICA | Approval | 05/01/1979 |