List of parties to the Chemical Weapons Convention
Parties to the Chemical Weapons Convention encompasses the states that have ratified or acceded to the Chemical Weapons Convention, a multilateral treaty outlawing the production, stockpiling, and use of chemical weapons. In addition, these states are members of the Organisation for the Prohibition of Chemical Weapons (OPCW).
Source: Wikipedia — List of parties to the Chemical Weapons Convention (CC BY-SA 4.0)