Special session of the United Nations General Assembly

A special session of the United Nations General Assembly, or UNGASS, occurs when the United Nations General Assembly meets in order to discuss an important wide-ranging topic.

Under Chapter IV, article 20 of the United Nations Charter, "Special sessions shall be convoked by the Secretary-General at the request of the Security Council or of a majority of the Members of the United Nations." The request of the Security Council requires a vote of nine or more of its fifteen members. However, since 1975, all special sessions have been called by the General Assembly.

Each special session deals exclusively with one topic with a short agenda. They are typically high-level events with the participation of heads of state and government and government ministers. A special session usually adopts one or two outcome documents, such as a political declaration, action plan or a strategy. Special sessions last from one to several days. Like a regular annual session, a special session consists of both formal and informal plenary meetings, with a Committee of the Whole negotiating the outcome document.