Parties and Range States
| Title | Status | Status date | CMS Party number | Region |
|---|---|---|---|---|
| Costa Rica | Party | 2007 | 103 | South & Central America & The Caribbean |
| Côte d'Ivoire | Party | 2003 | 083 | Africa |
| Croatia | Party | 2000 | 070 | Europe |
| Cuba | Party | 2008 | 105 | South & Central America & The Caribbean |
| Cyprus | Party | 2001 | 077 | Europe |
| Czech Republic | Party | 1994 | 044 | Europe |
| Democratic People's Republic of Korea | Non-Party | Asia | ||
| Democratic Republic of the Congo (Kinshasa) | Party | 1990 | 034 | Africa |
| Denmark | Party | 1983 | 001 | Europe |
| Djibouti | Party | 2004 | 087 | Africa |
| Dominica | Non-Party | South & Central America & The Caribbean | ||
| Dominican Republic | Party | 2017 | 125 | South & Central America & The Caribbean |
| Ecuador | Party | 2004 | 085 | South & Central America & The Caribbean |
| Egypt | Party | 1983 | 001 | Africa |
| El Salvador | Non-Party | South & Central America & The Caribbean | ||
| Equatorial Guinea | Party | 2010 | 114 | Africa |
| Eritrea | Party | 2005 | 089 | Africa |
| Estonia | Party | 2008 | 110 | Europe |
| Eswatini | Party | 2013 | 118 | Africa |
| Ethiopia | Party | 2010 | 113 | Africa |