| Afghanistan | 2010-01-25 | Acceptance | |
| Albania | 1963-11-21 | Ratification | |
| Algeria | 1968-12-24 | Acceptance | |
| Andorra | 2018-03-13 | Acceptance | |
| Argentina | 1963-10-30 | Ratification | |
| Armenia | 1993-09-05 | Notification of succession | |
| Australia | 1966-11-29 | Acceptance | |
| Barbados | 1975-06-24 | Notification of succession | |
| Belarus | 1962-12-12 | Ratification | |
| Belize | 1982-12-01 | Notification of succession | |
| Benin | 1963-07-09 | Acceptance | |
| Bolivia(Plurinational State of) | 2017-08-17 | Ratification | |
| Bosniaand Herzegovina | 1993-07-12 | Notification of succession | |
| Brazil | 1968-04-19 | Ratification | |
| BruneiDarusalaam | 1985-01-25 | Notification of succession | |
| Bulgaria | 1962-12-04 | Acceptance | |
| BurkinaFaso | 2012-09-04 | Ratification | |
| CentralAfrican Republic | 1962-02-22 | Acceptance | |
| Chile | 1971-10-26 | Ratification | |
| Congo | 1968-09-16 | Ratification | |
| CostaRica | 1963-09-10 | Ratification | |
| Croatia | 1992-07-06 | Notification of succession | |
| Cuba | 1962-11-02 | Ratification | |
| Cyprus | 1970-06-09 | Acceptance | |
| Czechia | 1993-03-26 | Notification of succession | |
| Côted'Ivoire | 1999-11-24 | Ratification | |
| Denmark | 1963-10-04 | Ratification | |
| Dominica | 1983-03-14 | Notification of succession | |
| DominicanRepublic | 1977-08-30 | Ratification | |
| Ecuador | 1979-03-05 | Acceptance | |
| Egypt | 1962-03-28 | Acceptance | |
| Eswatini | 1970-10-08 | Acceptance | |
| Finland | 1971-10-18 | Ratification | |
| France | 1961-09-11 | Ratification | |
| Georgia | 1992-11-04 | Notification of succession | |
| Germany | 1968-07-17 | Ratification | |
| Guatemala | 1983-02-04 | Ratification | |
| Guinea | 1964-12-11 | Acceptance | |
| Honduras | 2013-09-05 | Ratification | |
| Hungary | 1964-01-16 | Ratification | |
| Iceland | 2021-07-06 | Acceptance | |
| Indonesia | 1967-01-10 | Acceptance | |
| Iran(Islamic Republic of) | 1968-07-17 | Acceptance | |
| Iraq | 1977-06-28 | Ratification | |
| Israel | 1961-09-22 | Ratification | |
| Italy | 1966-10-06 | Ratification | |
| Jamaica | 2006-03-16 | Ratification | |
| Jordan | 1976-04-06 | Acceptance | |
| Kazakhstan | 2016-04-15 | Ratification | |
| Kuwait | 1963-01-15 | Acceptance | |
| Kyrgyzstan | 1995-07-03 | Acceptance | |
| Latvia | 2009-06-16 | Acceptance | |
| Lebanon | 1964-10-27 | Ratification | |
| Liberia | 1962-05-17 | Ratification | |
| Libya | 1973-01-09 | Ratification | |
| Luxembourg | 1970-01-20 | Ratification | |
| Madagascar | 1964-12-21 | Ratification | |
| Mali | 2007-12-07 | Ratification | |
| Malta | 1966-01-05 | Notification of succession | |
| Mauritius | 1970-08-20 | Notification of succession | |
| Monaco | 2012-08-28 | Acceptance | |
| Mongolia | 1964-11-04 | Ratification | |
| Montenegro | 2007-04-26 | Notification of succession | |
| Morocco | 1968-08-30 | Acceptance | |
| Netherlands | 1966-03-25 | Ratification | |
| NewZealand | 1963-02-12 | Ratification | |
| Nicaragua | 1981-09-28 | Ratification | |
| Niger | 1968-07-16 | Acceptance | |
| Nigeria | 1969-11-18 | Acceptance | |
| NorthMacedonia | 1997-04-30 | Notification of succession | |
| Norway | 1963-01-08 | Ratification | |
| Palestine | 2018-04-24 | Ratification | |
| Panama | 1967-08-10 | Acceptance | |
| Peru | 1966-12-19 | Ratification | |
| Philippines | 1964-11-19 | Acceptance | |
| Poland | 1964-09-15 | Ratification | |
| Portugal | 1981-01-08 | Ratification | |
| Republicof Moldova | 1993-03-17 | Notification of succession | |
| Romania | 1964-07-09 | Ratification | |
| RussianFederation | 1962-08-01 | Ratification | |
| Rwanda | 2000-12-28 | Acceptance | |
| SaintVincent and the Grenadines | 1985-01-22 | Notification of succession | |
| SanMarino | 2020-03-11 | Ratification | |
| SaudiArabia | 1973-08-17 | Ratification | |
| Senegal | 1967-09-25 | Ratification | |
| Serbia | 2001-09-11 | Notification of succession | |
| Seychelles | 2010-07-27 | Acceptance | |
| SierraLeone | 1967-06-02 | Ratification | |
| Slovakia | 1993-03-31 | Notification of succession | |
| Slovenia | 1992-11-05 | Notification of succession | |
| SolomonIslands | 1982-03-19 | Notification of succession | |
| SouthAfrica | 2000-03-09 | Ratification | |
| Spain | 1969-08-20 | Acceptance | |
| SriLanka | 1983-08-11 | Acceptance | |
| Sudan | 2019-12-20 | Ratification | |
| Sweden | 1968-03-21 | Ratification | |
| Tajikistan | 1992-08-28 | Notification of succession | |
| Togo | 2012-04-03 | Ratification | |
| Tunisia | 1969-08-29 | Ratification | |
| Uganda | 1968-09-09 | Acceptance | |
| Ukraine | 1962-12-19 | Ratification | |
| UnitedKingdom of Great Britain and Northern Ireland | 1962-03-14 | Acceptance | |
| UnitedRepublic of Tanzania | 1979-01-03 | Ratification | |
| Uruguay | 2004-05-03 | Acceptance | |
| Uzbekistan | 1997-12-08 | Ratification | |
| Venezuela(Bolivarian Republic of) | 1968-12-16 | Ratification | |
| Zimbabwe | 2006-05-30 | Acceptance |