| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Acceptance | 18/08/1977 | |
| BELGIUM | Acceptance | 18/10/1991 | 18/01/1992 |
| BELGIUM | Reservation | 18/10/1991 | |
| EUROPEAN ECONOMIC COMMUNITY | Acceptance | 10/02/1988 | 10/05/1988 |
| EUROPEAN ECONOMIC COMMUNITY | Reservation | 10/02/1988 | |
| FINLAND | Acceptance | 08/06/1983 | |
| FINLAND | Reservation | 08/06/1983 | |
| FRANCE | Acceptance | 17/06/1988 | 17/09/1988 |
| FRANCE | Reservation | 17/06/1988 | |
| GERMANY FEDERAL REPUBLIC | Acceptance | 09/08/1988 | 09/11/1988 |
| GERMANY FEDERAL REPUBLIC | Reservation | 09/08/1988 | |
| ISRAEL | Acceptance | 11/04/1980 | |
| ISRAEL | Reservation | 11/04/1980 | |
| KENYA | Acceptance | 31/08/1983 | 01/12/1983 |
| KENYA | Reservation | 31/08/1983 | |
| MOROCCO | Acceptance | 02/06/1987 | 02/09/1987 |
| NETHERLANDS THE | Acceptance | 27/07/1989 | 27/10/1989 |
| NETHERLANDS THE | Reservation | 27/07/1989 | |
| RWANDA | Acceptance | 22/04/1981 | |
| RWANDA | Reservation | 22/04/1981 | |
| SPAIN | Acceptance | 21/06/1991 | 21/09/1991 |
| SPAIN | Reservation | 21/06/1991 | |
| SWITZERLAND | Acceptance | 13/04/1977 | |
| SWITZERLAND | Reservation | 13/04/1977 | |
| UNITED KINGDOM | Acceptance | 10/09/1991 | 10/12/1991 |
| UNITED KINGDOM | Reservation | 10/09/1991 | |
| UNITED STATES OF AMERICA | Acceptance | 28/10/1983 | 28/01/1984 |
| UNITED STATES OF AMERICA | Reservation | 28/10/1983 | |
| ZIMBABWE | Acceptance | 20/06/1988 | 20/09/1988 |
| ZIMBABWE | Reservation | 20/06/1988 |