Parties and Range States
| Title | Status | Status date | CMS Party number | Region |
|---|---|---|---|---|
| Somalia | Range State | 020 | Africa | |
| South Africa | Party | 2002 | 038 | Africa |
| South Sudan | Range State | Africa | ||
| Spain | Party | 1999 | 017 | Europe |
| Sudan | Party | 1999 | AM | Africa |
| Svalbard and Jan Mayen (Norway) | Party | 018 | Europe | |
| Sweden | Party | 1999 | 001 | Europe |
| Switzerland | Party | 1999 | 046 | Europe |
| Syrian Arab Republic | Party | 2003 | 082 | Asia |
| Togo | Party | 1999 | 048 | Africa |
| Tunisia | Party | 2005 | 023 | Africa |
| Türkiye | Range State | AM | Europe | |
| Turkmenistan | Party | 2021 | 132 | Asia |
| Uganda | Party | 2000 | 068 | Africa |
| Ukraine | Party | 2003 | 063 | Europe |
| United Arab Emirates | Range State | 123 | Asia | |
| United Kingdom | Party | 1999 | 019 | Europe |
| United Republic of Tanzania | Party | 1999 | 059 | Africa |
| Uzbekistan | Party | 2004 | 055 | Asia |
| Yemen | Range State | 100 | Asia |