| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Acceptance | 29/10/1973 | |
| AUSTRALIA | Acceptance | 01/01/1905 | |
| AUSTRALIA | Acceptance | 26/05/1972 | |
| BELGIUM | Approval | 08/06/1971 | |
| BRAZIL | Acceptance | 27/10/1987 | |
| CHILE | Approval | 03/08/1971 | |
| CHINA | Acceptance | 11/12/1985 | |
| FRANCE | Approval | 23/04/1971 | |
| GERMAN DEMOCRATIC REPUBLIC | Acceptance | 23/08/1988 | |
| GERMANY FEDERAL REPUBLIC | Acceptance | 17/02/1981 | |
| JAPAN | Acceptance | 31/07/1972 | |
| JAPAN | Acceptance | 01/11/1982 | |
| NEW ZEALAND | Approval | 23/12/1971 | |
| NORWAY | Approval | 17/09/1971 | |
| POLAND | Acceptance | 11/07/1977 | |
| SOUTH AFRICA | Approval | 21/05/1971 | |
| SOVIET UNION | Approval | 04/04/1972 | |
| UNITED KINGDOM | Approval | 25/06/1971 | |
| UNITED KINGDOM | Approval | 16/04/1987 | |
| UNITED STATES OF AMERICA | Approval | 25/07/1972 | |
| UNITED STATES OF AMERICA | Approval | 07/08/1979 |