| Country | Region | Contracting Party | |
|---|---|---|---|
| 1 | Afghanistan | Near East | Yes |
| 2 | Albania | Europe | Yes |
| 3 | Algeria | Africa | Yes |
| 4 | Andorra | Europe | No |
| 5 | Angola | Africa | Yes |
| 6 | Antigua and Barbuda | Latin America and the Caribbean | Yes |
| 7 | Argentina | Latin America and the Caribbean | Yes |
| 8 | Armenia | Europe | Yes |
| 9 | Australia | South West Pacific | Yes |
| 10 | Austria | Europe | Yes |
| 11 | Azerbaijan | Europe | No |
| 12 | Bahamas | Latin America and the Caribbean | No |
| 13 | Bahrain | Near East | Yes |
| 14 | Bangladesh | Asia | Yes |
| 15 | Barbados | Latin America and the Caribbean | No |
| 16 | Belarus | Europe | No |
| 17 | Belgium | Europe | Yes |
| 18 | Belize | Latin America and the Caribbean | No |
| 19 | Benin | Africa | Yes |
| 20 | Bhutan | Asia | Yes |