| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| CZECHOSLOVAKIA | Acceptance | 18/12/1990 | 18/03/1991 |
| KENYA | Acceptance | 31/08/1983 | |
| KENYA | Reservation | 31/08/1983 | |
| NEW ZEALAND | Acceptance | 20/03/1984 | |
| NEW ZEALAND | Reservation | 20/03/1984 | |
| SWITZERLAND | Acceptance | 25/07/1985 | |
| SWITZERLAND | Reservation | 25/07/1985 | |
| UNITED KINGDOM |