The rector of the University of Oslo is the university's highest officer, who serves as both its chief executive, its ceremonial head and as chairperson of the university board. The rector is directly elected among the (full) professors by all the members of the university community, that is academic employees, students and technical-administrative staff, who received the right to vote in this order. Until 1989, only professors were eligible to stand for election, although so far all rectors have been professors at the university. The rector's deputy and the university's second highest official, the pro-rector, is also directly elected at the same time. Both the rector and the pro-rector are elected for four-year terms and may stand for reelection to the same office once. The rectorate may