The Holy See is a member of various international organizations and groups including the International Atomic Energy Agency (IAEA), International Telecommunication Union, the Organization for Security and Co-operation in Europe (OSCE), the Organisation for the Prohibition of Chemical Weapons (OPCW) and the United Nations High Commissioner for Refugees (UNHCR). The Holy See is also a permanent observer in various international organizations, including the United Nations General Assembly, the Council of Europe, UNESCO (United Nations Educational, Scientific and Cultural Organization), the World Trade Organization (WTO), and the Food and Agriculture Organization (FAO).