| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Acceptance | 18/08/1977 | |
| ALGERIA | Reservation | 18/08/1977 | |
| AUSTRALIA | Acceptance | 22/01/1980 | |
| CANADA | Acceptance | 10/06/1977 | |
| CANADA | Reservation | 10/06/1977 | |
| HUNGARY | Acceptance | 18/12/1981 | 18/03/1982 |
| ISRAEL | Acceptance | 11/04/1980 | 11/07/1980 |
| KENYA | Acceptance | 31/08/1983 | 01/12/1983 |
| KENYA | Reservation | 31/08/1983 | |
| MOROCCO | Acceptance | 02/06/1987 | 02/09/1987 |
| MOROCCO | Reservation | 02/06/1987 | |
| NEW ZEALAND | Acceptance | 04/12/1979 | |
| POLAND | Acceptance | 26/01/1989 | 26/04/1989 |
| SWITZERLAND | Acceptance | 13/04/1977 | |
| SWITZERLAND | Reservation | 13/04/1977 | |
| UNITED KINGDOM | | | |
| UNITED STATES OF AMERICA | Acceptance | 28/10/1983 | 28/01/1984 |
| UNITED STATES OF AMERICA | Reservation | 28/10/1983 | |