1996 United Nations Secretary-General selection a term beginning 1 January 1997. The 1996 selection marks the only time that a sitting Secretary-General was denied a second term. The elderly Boutros-Ghali initially intended to serve only one term, but he ran for a second term in 1996. Traditionally, the Secretary-General is entitled to run unopposed for a second term. No sitting Secretary-General had ever been denied a second term by a veto. In the 1950 selection, Trygve Lie was vetoed by the Soviet Union, but he was re-appointed by the General Assembly without a recommendation from the Security Council. In the 1976 selection, Kurt Waldheim received
Under-Secretary-General of the United Nations diplomatic immunity under the UN Charter. The majority of USGs are appointed by the UN General Assembly on the recommendation of the Secretary-General for a fixed term of four years. Others (normally special envoys, Secretariat-appointees and non-programme management positions) are appointed directly by the UN Secretary-General on his own authority. However, all USGs report to the UN General Assembly through the UN Secretary-General. The only exception to this is the Under-Secretary-General for Internal Oversight Services who reports directly to the General Assembly. The distinction in method of appointment is important as USGs appointed by the General Assembly have a mandate