| Country | Action | Action Date | Effective Date |
|---|
| ANGOLA | Participation | 07/05/1982 | |
| ARGENTINA | Signature | 06/06/1985 | |
| ARGENTINA | Acceptance | 06/06/1985 | 02/07/1985 |
| AUSTRIA | Participation | 07/05/1982 | |
| AUSTRIA | Signature | 23/07/1982 | |
| AUSTRIA | Ratification | 10/03/1983 | 30/03/1983 |
| BELGIUM | Signature | 15/02/1983 | |
| BELGIUM | Ratification | 15/02/1983 | 15/03/1983 |
| BENIN | Participation | 07/05/1982 | |
| Berlin West | Extension | 16/02/1983 | |
| BOTSWANA | Participation | 07/05/1982 | |
| BRAZIL | Signature | 08/12/1982 | |
| BRAZIL | Ratification | 14/07/1983 | 14/07/1983 |
| BURKINA FASO | Participation | 07/05/1982 | |
| BURUNDI | Participation | 07/05/1982 | |
| CAMEROON | Participation | 07/05/1982 | |
| CANADA | Signature | 23/12/1982 | |
| CANADA | Acceptance | 23/12/1982 | 30/12/1982 |
| CANADA | Reservation | 23/12/1982 | |
| CAPE VERDE | Participation | 07/05/1982 | |
| CENTRAL AFRICAN REPUBLIC | Participation | 07/05/1982 | |
| CHAD | Participation | 07/05/1982 | |
| CHINA P R | Signature | 09/05/1985 | |
| CHINA P R | Acceptance | 09/05/1985 | 10/05/1985 |
| COMOROS ISLANDS | Participation | 07/05/1982 | |
| CONGO | Participation | 07/05/1982 | |
| COTE D'IVOIRE | Participation | 07/05/1982 | |
| DENMARK | Participation | 07/05/1982 | |
| DENMARK | Signature | 07/09/1982 | |
| DENMARK | Ratification | 07/09/1982 | 30/12/1982 |
| DENMARK | Declaration | 07/09/1982 | |
| DJIBOUTI | Participation | 07/05/1982 | |
| EGYPT | Participation | 07/05/1982 | |
| EQUATORIAL GUINEA | Participation | 07/05/1982 | |
| ETHIOPIA | Participation | 07/05/1982 | |
| FINLAND | Signature | 07/09/1982 | |
| FINLAND | Acceptance | 07/09/1982 | 30/12/1982 |
| FRANCE | Signature | 01/07/1982 | |
| FRANCE | Ratification | 01/07/1982 | 30/12/1982 |
| GABON | Participation | 07/05/1982 | |
| GAMBIA THE | Participation | 07/05/1982 | |
| GERMANY FEDERAL REPUBLIC | Signature | 16/02/1983 | |
| GERMANY FEDERAL REPUBLIC | Acceptance | 16/02/1983 | 18/02/1983 |
| GERMANY FEDERAL REPUBLIC | Declaration | 16/02/1983 | |
| GERMANY FEDERAL REPUBLIC | Reservation | 16/02/1983 | |
| GHANA | Participation | 07/05/1982 | |
| GUINEA | Participation | 07/05/1982 | |
| GUINEA BISSAU | Participation | 07/05/1982 | |
| INDIA | Signature | 25/10/1983 | |
| INDIA | Accession | 06/12/1983 | 06/12/1983 |
| INDIA | Declaration | 06/12/1983 | |
| ISRAEL | Communication | 27/06/1984 | |
| ITALY | Signature | 26/11/1982 | |
| ITALY | Acceptance | 26/11/1982 | 31/12/1982 |
| ITALY | Declaration | 26/11/1982 | |
| JAPAN | Signature | 03/02/1983 | |
| JAPAN | Acceptance | 03/02/1983 | 03/02/1983 |
| JAPAN | Declaration | 03/02/1983 | |
| KENYA | Participation | 07/05/1982 | |
| KOREA REPUBLIC OF | Signature | 27/09/1982 | |
| KOREA REPUBLIC OF | Acceptance | 27/09/1982 | 30/12/1982 |
| KUWAIT | Signature | 09/11/1982 | |
| KUWAIT | Acceptance | 09/11/1982 | 30/12/1982 |
| KUWAIT | Understanding | 09/11/1982 | |
| LESOTHO | Participation | 07/05/1982 | |
| LIBERIA | Participation | 07/05/1982 | |
| MADAGASCAR | Participation | 07/05/1982 | |
| MALAWI | Participation | 07/05/1982 | |
| MALI | Participation | 07/05/1982 | |
| MAURITANIA | Participation | 07/05/1982 | |
| MAURITIUS | Participation | 07/05/1982 | |
| MOROCCO | Participation | 07/05/1982 | |
| MOZAMBIQUE | Participation | 07/05/1982 | |
| NAMIBIA | Accession | 10/04/1991 | |
| NETHERLANDS THE | Signature | 28/01/1983 | |
| NETHERLANDS THE | Acceptance | 28/01/1983 | 28/01/1983 |
| NETHERLANDS THE | Declaration | 28/01/1983 | |
| NIGER | Participation | 07/05/1982 | |
| NIGERIA | Participation | 07/05/1982 | |
| NORWAY | Signature | 07/09/1982 | |
| NORWAY | Declaration | 07/09/1982 | |
| NORWAY | Acceptance | 07/09/1982 | 30/12/1982 |
| NORWAY | Withdrawal Dec. | 13/09/2006 | |
| PORTUGAL | Signature | 08/12/1983 | |
| PORTUGAL | Accession | 15/12/1983 | 15/12/1983 |
| RWANDA | Participation | 07/05/1982 | |
| Sao Tome And Principe | Participation | 07/05/1982 | |
| SAUDI ARABIA | Signature | 15/12/1983 | |
| SAUDI ARABIA | Accession | 15/12/1983 | 15/12/1983 |
| SENEGAL | Participation | 07/05/1982 | |
| SEYCHELLES | Participation | 07/05/1982 | |
| SIERRA LEONE | Participation | 07/05/1982 | |
| SOMALIA | Participation | 07/05/1982 | |
| SOUTH AFRICA | Accession | 13/12/1995 | 13/12/1995 |
| SPAIN | Signature | 13/02/1984 | |
| SPAIN | Acceptance | 13/02/1984 | 20/03/1984 |
| SUDAN | Participation | 07/05/1982 | |
| SWAZILAND | Participation | 07/05/1982 | |
| SWEDEN | Signature | 07/09/1982 | |
| SWEDEN | Declaration | 07/09/1982 | |
| SWEDEN | Acceptance | 07/09/1982 | 30/12/1982 |
| SWITZERLAND | Signature | 14/09/1982 | |
| SWITZERLAND | Acceptance | 14/09/1982 | 30/12/1982 |
| SWITZERLAND | Declaration | 14/09/1982 | |
| TANZANIA | Participation | 07/05/1982 | |
| TOGO | Participation | 07/05/1982 | |
| TUNISIA | Participation | 07/05/1982 | |
| TURKEY | Accession | 09/09/2013 | |
| UGANDA | Participation | 07/05/1982 | |
| UNITED KINGDOM | Signature | 23/12/1982 | |
| UNITED KINGDOM | Acceptance | 27/04/1983 | 29/04/1983 |
| UNITED KINGDOM | Declaration | 27/04/1983 | |
| UNITED KINGDOM | Reservation | 27/04/1983 | |
| UNITED STATES OF AMERICA | Signature | 31/01/1983 | |
| UNITED STATES OF AMERICA | Acceptance | 31/01/1983 | 08/02/1983 |
| UNITED STATES OF AMERICA | Declaration | 31/01/1983 | |
| YUGOSLAVIA | Signature | 15/09/1982 | |
| YUGOSLAVIA | Ratification | 15/09/1982 | 30/12/1982 |
| ZAIRE | Participation | 07/05/1982 | |
| ZAMBIA | Participation | 07/05/1982 | |
| ZIMBABWE | Participation | 24/05/1982 | |