| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Acceptance | 02/06/1997 | |
| ANTIGUA AND BARBUDA | Acceptance | 15/05/1997 | |
| AUSTRALIA | Acceptance | 11/01/1990 | |
| AUSTRIA | Acceptance | 10/05/1980 | |
| BAHAMAS | Acceptance | 21/05/1997 | |
| BANGLADESH | Acceptance | 06/06/1997 | |
| BARBADOS | Acceptance | 26/05/1997 | |
| BELIZE | Acceptance | 12/05/1997 | |
| BYELORUSSIA S S R | Acceptance | 15/06/1989 | |
| CAMBODIA | Acceptance | 09/04/1997 | |
| CANADA | Acceptance | 19/04/1989 | |
| COLOMBIA | Acceptance | 06/06/1997 | |
| CZECHOSLOVAKIA | Acceptance | 30/11/1989 | |
| DENMARK | Acceptance | 14/10/1994 | |
| DOMINICA, COMMONWEALTH OF | Acceptance | 05/06/1997 | |
| EL SALVADOR | Acceptance | 20/05/1997 | |
| FINLAND | Acceptance | 17/03/1989 | |
| FRANCE | Acceptance | 26/10/1988 | |
| GERMAN DEMOCRATIC REPUBLIC | Acceptance | 23/07/1988 | |
| GREECE | Acceptance | 25/08/1993 | |
| GRENADA | Acceptance | 05/06/1997 | |
| HAITI | Acceptance | 26/09/1995 | |
| HUNGARY | Acceptance | 31/07/1988 | |
| INDONESIA | Acceptance | 05/06/1997 | |
| ISRAEL | Acceptance | 10/06/1997 | |
| ITALY | Acceptance | 22/02/1990 | |
| JAPAN | Acceptance | 28/04/1995 | |
| KAZAKHSTAN | Acceptance | 04/06/1997 | |
| KOREA REPUBLIC OF | Acceptance | 07/12/1989 | |
| KYRGYZSTAN | Acceptance | 04/06/1997 | |
| LAOS | Acceptance | 09/05/1997 | |
| LEBANON | Acceptance | 04/07/1995 | |
| MADAGASCAR | Acceptance | 04/06/1997 | |
| MALAYSIA | Acceptance | 29/05/1996 | |
| MEXICO | Acceptance | 21/06/1990 | |
| MEXICO | Acceptance | 07/04/1997 | |
| MONACO | Acceptance | 22/11/1988 | |
| MONGOLIA | Acceptance | 03/06/1997 | |
| NAMIBIA | Acceptance | 04/06/1997 | |
| NAURU | Acceptance | 05/06/1997 | |
| NETHERLANDS THE | Acceptance | 16/08/1989 | |
| NORWAY | Acceptance | 04/10/1988 | |
| OMAN | Acceptance | 04/02/1997 | |
| PALAU | Acceptance | 03/06/1997 | |
| PERU | Acceptance | 14/12/1995 | |
| PHILIPPINES | Adherence | 12/08/1993 | |
| QATAR | Acceptance | 09/04/1997 | |
| SAINT LUCIA | Acceptance | 13/05/1997 | |
| SEYCHELLES | Acceptance | 05/06/1997 | |
| SLOVAK REPUBLIC | Adherence | 08/07/1993 | |
| SOUTH AFRICA | Acceptance | 11/12/1995 | |
| SOVIET UNION | Acceptance | 01/03/1989 | |
| SPAIN | Acceptance | 27/07/1990 | |
| ST KITTS AND NEVIS | Acceptance | 13/05/1997 | |
| ST VINCENT AND THE GRENADINES | Acceptance | 25/04/1997 | |
| SURINAME | Acceptance | 16/05/1997 | |
| SWEDEN | Acceptance | 11/10/1989 | |
| TANZANIA | Acceptance | 03/06/1997 | |
| TOGO | Acceptance | 10/06/1997 | |
| TRINIDAD AND TOBAGO | Acceptance | 06/06/1997 | |
| TUNISIA | Acceptance | 12/07/1993 | |
| UGANDA | Acceptance | 11/06/1997 | |
| UNITED ARAB EMIRATES | Acceptance | 06/06/1997 | |
| UNITED KINGDOM | Acceptance | 26/10/1988 | |
| UZBEKISTAN | Acceptance | 02/06/1997 | |
| VENEZUELA | Acceptance | 11/07/1996 | |
| YEMEN | Acceptance | 05/06/1997 | |