Parties and Range States
| Title | Status | Status date | CMS Party number | Region |
|---|---|---|---|---|
| Bolivia | Party | 2003 | 081 | South & Central America & The Caribbean |
| Bosnia and Herzegovina | Party | 2017 | 126 | Europe |
| Botswana | Non-Party | Africa | ||
| Brazil | Party | 2015 | 122 | South & Central America & The Caribbean |
| Brunei Darussalam | Non-Party | Asia | ||
| Bulgaria | Party | 1999 | 061 | Europe |
| Burkina Faso | Party | 1990 | 030 | Africa |
| Burundi | Party | 2011 | 116 | Africa |
| Cabo Verde | Party | 2006 | 096 | Africa |
| Cambodia | Non-Party | Asia | ||
| Cameroon | Party | 1983 | 001 | Africa |
| Canada | Non-Party | North America | ||
| Central African Republic | Party | 2018 | 128 | Africa |
| Chad | Party | 1997 | 051 | Africa |
| Chile | Party | 1983 | 001 | South & Central America & The Caribbean |
| China | Non-Party | AM | Asia | |
| Colombia | Non-Party | AM | South & Central America & The Caribbean | |
| Comoros | Non-Party | AM | Africa | |
| Congo (Brazzaville) | Party | 2000 | 066 | Africa |
| Cook Islands | Party | 2006 | 098 | Oceania |