 A person is elected to the office of Chancellor on a three-year term by the Council unless there is more than one candidate, in which case an election is conducted among Queen's graduates.The Principal acts as the chief executive officer of the University under the authority of the Board and the Senate, and supervises and directs the academic and administrative work of the university and of its teaching and non-teaching staff.Since 1974, principals have been appointed for five-year terms, renewable subject to review.