Ratifying countries
- 1990 - Philippines
- 1990 - France
- 1990 - Barbados
- 1990 - Pakistan
- 1990 - Honduras
- 1990 - Indonesia
- 1990 - Zimbabwe
- 1990 - Benin
- 1990 - Guinea-Bissau
- 1990 - Namibia
- 1990 - Seychelles
- 1990 - Sierra Leone
- 1990 - Sudan
- 1990 - Chad
- 1990 - Democratic Republic of the Congo
- 1990 - Egypt
- 1990 - Russia
- 1990 - Burundi
- 1990 - Guinea
- 1990 - Niger
- 1990 - Peru
- 1990 - Bolivia
- 1990 - Malta
- 1990 - Djibouti
- 1990 - Mauritius
- 1990 - Ghana
- 1990 - Nepal
- 1990 - Togo
- 1990 - Grenada
- 1990 - Guatemala
- 1990 - Uganda
- 1990 - Sweden
- 1990 - Angola
- 1990 - Romania
- 1990 - Venezuela
- 1990 - Australia
- 1990 - Ecuador
- 1990 - Chile
- 1990 - Panama
- 1990 - Costa Rica
- 1990 - El Salvador
- 1990 - Spain
- 1990 - Mexico
- 1990 - Brazil
- 1990 - Nicaragua
- 1990 - Belarus
- 1990 - Argentina
- 1990 - Vietnam
- 1990 - North Korea
- 1990 - Mongolia
- 1990 - Portugal
- 1990 - Paraguay
- 1990 - Burkina Faso
- 1990 - Senegal
- 1990 - Mali
- 1990 - Gambia
- 1990 - Uruguay
- 1990 - Bangladesh
- 1990 - Belize
- 1990 - Saint Kitts and Nevis
- 1990 - Vatican City
- 1991 - Israel
- 1991 - Madagascar
- 1991 - Poland
- 1991 - Ethiopia
- 1991 - Czechia
- 1991 - Bahamas
- 1991 - Jamaica
- 1991 - Kuwait
- 1991 - São Tomé and Príncipe
- 1991 - Yemen
- 1991 - Nigeria
- 1991 - Lebanon
- 1991 - Tanzania
- 1991 - Colombia
- 1991 - Belgium
- 1991 - South Korea
- 1991 - Cyprus
- 1991 - Cuba
- 1991 - Laos
- 1991 - Zambia
- 1991 - Norway
- 1991 - Sri Lanka
- 1991 - Bulgaria
- 1991 - Jordan
- 1991 - Denmark
- 1991 - Italy
- 1991 - United Kingdom
- 1991 - Hungary
- 1991 - Canada
- 1991 - San Marino
- 1991 - Ukraine
- 1991 - Finland
- 1991 - Myanmar (Burma)
- 1991 - Côte d'Ivoire
- 1991 - Mauritania
- 1991 - Trinidad and Tobago
- 1991 - Rwanda
- 1991 - Guyana
- 1991 - Malawi
- 1991 - Dominica
- 1991 - Maldives
- 1991 - Estonia
- 1991 - Dominican Republic
- 1992 - India
- 1992 - China
- 1992 - Ireland
- 1992 - Bahrain
- 1992 - Thailand
- 1992 - Central African Republic
- 1992 - Cambodia
- 1992 - Cape Verde
- 1992 - Germany
- 1992 - Austria
- 1992 - Albania
- 1992 - Tunisia
- 1992 - Equatorial Guinea
- 1992 - Latvia
- 1992 - Lithuania
- 1992 - Croatia
- 1992 - Slovenia
- 1992 - Azerbaijan
- 1992 - Iceland
- 1993 - Liberia
- 1993 - Monaco
- 1993 - Cameroon
- 1993 - Saint Vincent and the Grenadines
- 1993 - Saint Vincent and the Grenadines
- 1993 - Saint Lucia
- 1993 - Morocco
- 1993 - Moldova
- 1993 - Syria
- 1993 - Algeria
- 1993 - Republic of the Congo
- 1993 - Bosnia and Herzegovina
- 1993 - Comoros
- 1993 - North Macedonia
- 1993 - Vanuatu
- 1993 - Greece
- 1993 - Libya
- 1993 - New Zealand
- 1993 - Fiji
- 1993 - Suriname
- 1993 - Antigua and Barbuda
- 1993 - Saudi Arabia
- 1993 - Turkmenistan
- 1993 - Slovakia
- 1993 - Tajikistan
- 1993 - Armenia
- 1993 - Micronesia
- 1994 - Iran
- 1994 - Eritrea
- 1994 - Kyrgyzstan
- 1994 - Nauru
- 1994 - Mozambique
- 1994 - Uzbekistan
- 1994 - Georgia
- 1994 - Japan
- 1994 - Luxembourg
- 1994 - Afghanistan
- 1994 - Iraq
- 1994 - Gabon
- 1994 - Samoa
- 1994 - Kazakhstan
- 1995 - United States
- 1995 - Haiti
- 1995 - Solomon Islands
- 1995 - Botswana
- 1995 - Eswatini
- 1995 - Turkey
- 1995 - Liechtenstein
- 1995 - Palau
- 1995 - South Africa
- 1995 - Netherlands
- 1995 - Malaysia
- 1995 - Botswana
- 1995 - Tonga
- 1995 - Singapore
- 1995 - Qatar
- 1995 - Tuvalu
- 1995 - Kiribati
- 1995 - Brunei
- 1996 - Oman
- 1996 - Andorra
- 1997 - Switzerland
- 1997 - Cook Islands
- 1997 - United Arab Emirates
- 2001 - Serbia
- 2003 - Timor-Leste
- 2007 - Montenegro
- 2009 - Bhutan
- 2015 - Somalia
- 2015 - South Sudan
