The United Nations General Assembly is one of the six principal organs of the United Nations and the only one in which all member nations have equal representation. Its powers are to oversee the budget of the United Nations, appoint the non-permanent members to the Security Council, receive reports from other parts of the United Nations and make recommendations in the form of General Assembly Resolutions. It has also established a wide number of subsidiary organs. The General Assembly meets under its president or Secretary-General in regular yearly sessions the main part of which lasts from September to December and resumed part from January until all issues are addressed. It can also reconvene for special and emergency special sessions. Its composition, functions, powers, voting, and procedures are set out in Chapter IV of the United Nations Charter. The first session was convened on 10 January 1946 in the Westminster Central Hall in London and included representatives of 51 nations.