Since the value of these individuals to the University's academic community transcends the boundaries of departments, colleges, schools, and institutes, university professors are appointed as at-large members of the General Faculty. At the discretion of local or collegiate unit faculties, however, university professors may be invited to accept primary affiliation in one or more departments, colleges, schools, and/or institutes. University professors invariably hold tenured appointments. They are appointed by the President and the Board of Visitors with the advice and consent of an ad hoc faculty committee of the President's own choosing.