| Cambodia |
| Cameroon |
| Canada |
| Cape Verde |
| Cayman Islands |
| Central African Republic |
| Chad |
| Chile |
| China |
| Christmas Island |
| Cocos (Keeling) Islands |
| Colombia |
| Comoros |
| Congo, Democratic Republic of the |
| Congo, Republic of the |
| Cook Islands |
| Costa Rica |
| Cote d'Ivoire |
| Croatia |
| Cuba |
| Cyprus |
| Czech Republic |
