| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AFGHANISTAN | Acceptance | 07/12/1989 | |
| ANDORRA | Acceptance | 15/01/1997 | 15/01/1997 |
| Aruba | Extension | 06/11/1987 | |
| AUSTRALIA | Acceptance | 25/02/1987 | |
| AZERBAIJAN | Acceptance | 02/10/1992 | 02/10/1992 |
| BAHAMAS | Acceptance | 02/06/1987 | |
| BAHRAIN | Acceptance | 21/06/1991 | |
| BANGLADESH | Acceptance | 18/05/1994 | |
| Barbados | Acceptance | 02/11/1993 | |
| BELARUS | Acceptance | 11/02/1993 | |
| BELGIUM | Acceptance | 05/02/1987 | |
| Berlin West | Extension | 15/09/1987 | |
| BHUTAN | Acceptance | 23/10/1990 | |
| BOLIVIA | Acceptance | 18/03/1992 | |
| BOSNIA AND HERZEGOVINA | Acceptance | 16/07/1993 | |
| BOTSWANA | Acceptance | 10/01/1992 | |
| BRUNEI DARUSSALAM | Acceptance | 04/03/1987 | |
| BULGARIA | Acceptance | 04/05/1994 | |
| BURKINA FASO | Acceptance | 01/04/1992 | |
| CAMBODIA | Acceptance | 17/11/1993 | |
| CAMEROON | Acceptance | 15/10/1987 | |
| CHAD | Acceptance | 26/05/1993 | |
| CHILE | Acceptance | 21/08/1995 | |
| CHINA P R | Acceptance | 04/12/1986 | |
| COLOMBIA | Acceptance | 24/09/1993 | |
| COMOROS | Acceptance | 29/07/1994 | |
| CONGO | Acceptance | 13/07/1993 | |
| Cook Islands | Acceptance | 02/02/1990 | |
| COTE D'IVOIRE | Acceptance | 30/04/1993 | |
| CROATIA | Acceptance | 16/02/1993 | |
| CYPRUS | Acceptance | 18/01/1990 | |
| CZECHOSLOVAKIA | Acceptance | 16/08/1991 | |
| DENMARK | Acceptance | 08/07/1991 | |
| DJIBOUTI | Acceptance | 02/06/1993 | |
| DOMINICA, COMMONWEALTH OF | Acceptance | 01/03/1990 | |
| ECUADOR | Acceptance | 14/04/1993 | |
| EGYPT | Acceptance | 10/09/1990 | |
| EL SALVADOR | Acceptance | 13/01/1994 | |
| ETHIOPIA | Acceptance | 04/12/1990 | |
| FIJI | Acceptance | 23/10/1989 | |
| FINLAND | Acceptance | 19/12/1986 | |
| FRANCE | Acceptance | 17/03/1987 | |
| GABON | Acceptance | 20/05/1987 | |
| GERMANY FEDERAL REPUBLIC | Acceptance | 15/09/1987 | |
| GHANA | Acceptance | 04/10/1991 | |
| GREECE | Acceptance | 23/01/1991 | |
| GRENADA | Acceptance | 31/12/1991 | |
| GUATEMALA | Acceptance | 21/07/1994 | |
| GUINEA | Acceptance | 27/12/1991 | |
| GUINEA BISSAU | Acceptance | 07/11/1991 | |
| HONDURAS | Acceptance | 09/01/1991 | |
| HUNGARY | Acceptance | 02/06/1992 | |
| ICELAND | Acceptance | 02/04/1991 | |
| INDIA | Acceptance | 12/12/1988 | |
| INDONESIA | Acceptance | 06/07/1988 | |
| IRAN | Acceptance | 22/10/1990 | |
| IRAQ | Acceptance | 20/03/1990 | |
| IRELAND | Acceptance | 06/10/1993 | |
| ITALY | Acceptance | 30/06/1995 | |
| JAMAICA | Acceptance | 04/12/1986 | |
| JAPAN | Acceptance | 23/06/1987 | |
| JORDAN | Acceptance | 26/03/1987 | |
| KIRIBATI | Acceptance | 11/05/1988 | |
| KOREA REPUBLIC OF | Acceptance | 05/05/1987 | |
| KUWAIT | Acceptance | 27/04/1987 | |
| LAOS | Acceptance | 05/04/1988 | |
| LATVIA | Acceptance | 19/04/1993 | |
| LEBANON | Acceptance | 09/09/1993 | |
| LIBYA | Acceptance | 22/07/1996 | 11/07/1994 |
| LITHUANIA | Acceptance | 11/03/1993 | |
| LUXEMBOURG | Acceptance | 29/09/1987 | |
| MADAGASCAR | Acceptance | 24/11/1986 | |
| MALAYSIA | Acceptance | 29/09/1988 | |
| MALDIVES | Acceptance | 26/10/1990 | |
| MALTA | Acceptance | 23/01/1990 | |
| MARSHALL ISLANDS | Acceptance | 12/07/1993 | |
| MAURITIUS | Acceptance | 23/04/1993 | |
| MEXICO | Acceptance | 17/02/1989 | |
| MICRONESIA | Acceptance | 13/03/1992 | |
| MONACO | Acceptance | 22/02/1990 | |
| MONGOLIA | Acceptance | 26/03/1993 | |
| MOROCCO | Acceptance | 02/03/1987 | |
| MOZAMBIQUE | Acceptance | 08/10/1991 | |
| MYANMAR | Acceptance | 17/11/1993 | |
| NAMIBIA | Acceptance | 11/11/1991 | |
| NEPAL | Acceptance | 30/08/1990 | |
| Netherlands Antilles | Extension | 06/11/1987 | |
| NETHERLANDS THE | Acceptance | 06/11/1987 | |
| NEW ZEALAND | Acceptance | 30/12/1986 | |
| NICARAGUA | Acceptance | 14/04/1994 | |
| NIGERIA | Acceptance | 03/01/1991 | |
| NIUE | Acceptance | 11/07/1994 | 11/07/1994 |
| NORWAY | Acceptance | 01/02/1990 | |
| OMAN | Acceptance | 03/07/1990 | |
| PAKISTAN | Acceptance | 22/08/1994 | |
| PALAU | Acceptance | 09/03/1995 | 09/03/1995 |
| PAPUA NEW GUINEA | Acceptance | 17/10/1990 | |
| PHILIPPINES | Acceptance | 16/03/1989 | |
| PORTUGAL | Acceptance | 22/03/1994 | |
| QATAR | Acceptance | 17/05/1993 | |
| ROMANIA | Acceptance | 17/11/1993 | |
| SAMOA | Acceptance | 21/02/1991 | |
| SAN MARINO | Acceptance | 30/07/1987 | |
| SAUDI ARABIA | Acceptance | 10/01/1990 | |
| SENEGAL | Acceptance | 16/04/1987 | |
| SEYCHELLES | Acceptance | 30/07/1993 | |
| SIERRA LEONE | Acceptance | 25/07/1994 | |
| SINGAPORE | Acceptance | 02/03/1987 | |
| SLOVENIA | Acceptance | 21/06/1993 | |
| SOLOMON ISLANDS | Acceptance | 09/03/1987 | |
| SOUTH AFRICA | Acceptance | 05/05/1994 | |
| SOVIET UNION | Acceptance | 02/04/1990 | |
| SPAIN | Acceptance | 17/04/1991 | |
| SRI LANKA | Acceptance | 21/05/1993 | |
| St Lucia | Acceptance | 26/09/1991 | |
| ST VINCENT AND THE GRENADINES | Acceptance | 24/09/1991 | |
| SUDAN | Acceptance | 13/11/1990 | |
| SWAZILAND | Acceptance | 10/12/1991 | |
| SWEDEN | Acceptance | 10/10/1986 | |
| SWITZERLAND | Acceptance | 19/02/1987 | |
| SYRIA | Acceptance | 06/02/1990 | |
| THAILAND | Acceptance | 15/08/1990 | |
| TOGO | Acceptance | 30/01/1987 | |
| TONGA | Acceptance | 02/01/1987 | |
| TRINIDAD AND TOBAGO | Acceptance | 15/10/1986 | |
| TUNISIA | Acceptance | 04/10/1990 | |
| TURKMENISTAN | Acceptance | 16/04/1993 | |
| Tuvalu | Acceptance | 27/01/1994 | |
| UGANDA | Acceptance | 09/10/1991 | |
| UNITED ARAB EMIRATES | Acceptance | 11/02/1987 | |
| UNITED KINGDOM | Ratification | 18/03/1987 | |
| UNITED KINGDOM | Acceptance | 18/03/1987 | |
| UNITED STATES OF AMERICA | Acceptance | 01/05/1990 | |
| UZBEKISTAN | Acceptance | 27/08/1993 | |
| VANUATU | Acceptance | 19/03/1987 | |
| VENEZUELA | Acceptance | 22/04/1988 | |
| VIETNAM | Acceptance | 14/10/1987 | |
| YEMEN | Acceptance | 09/09/1993 | |
| YUGOSLAVIA | Acceptance | 12/04/1993 | |
| YUGOSLAVIA | Acceptance | 28/11/2000 | 28/11/2000 |
| ZIMBABWE | Acceptance | 15/06/1992 |