| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Approval | 13/06/1977 | |
| AUSTRALIA | Approval | 27/08/1976 | |
| AUSTRALIA | Approval | 01/09/1980 | |
| BELGIUM | Approval | 18/01/1977 | |
| BELGIUM | Approval | 25/01/1978 | |
| BRAZIL | Approval | 27/10/1987 | |
| CHILE | Approval | 22/12/1976 | |
| CHINA | Approval | 11/12/1985 | |
| FRANCE | Approval | 08/09/1977 | |
| GERMAN DEMOCRATIC REPUBLIC | Approval | 23/08/1988 | |
| GERMANY FEDERAL REPUBLIC | Approval | 17/02/1981 | |
| GERMANY FEDERAL REPUBLIC | Approval | 18/01/1984 | |
| JAPAN | Approval | 16/12/1978 | |
| JAPAN | Approval | 01/11/1982 | |
| NEW ZEALAND | Approval | 30/06/1977 | |
| NORWAY | Approval | 08/03/1977 | |
| POLAND | Approval | 11/07/1977 | |
| SOUTH AFRICA | Approval | 20/08/1976 | |
| SOVIET UNION | Approval | 14/11/1977 | |
| UNITED KINGDOM | Approval | 01/09/1977 | |
| UNITED STATES OF AMERICA | Approval | 12/04/1977 | |
| UNITED STATES OF AMERICA | Approval | 07/08/1979 |