Colleges of Durham University mixed in 2005 with the admittance of male undergraduates. One college, Ustinov, admits only postgraduates. Durham operates a collegiate structure similar to that of the University of Oxford and the University of Cambridge, in that all colleges at Durham, being constituent colleges of a "recognised body", are "listed bodies" in the Education (Listed Bodies) (England) Order 2013 made under the Education Reform Act 1988. The "recognised body" in this case is Durham University. Though most of the Durham colleges are governed and owned directly by the University itself, and so do not enjoy the independence of colleges at Oxford and
Van Mildert College, Durham as of 2012 Van Mildert College has been twinned with Halifax College, University of York. David Harper is the current Principal of the College, a palaeontologist and former Professor of Palaeontology in the University of Copenhagen. The following list is of the past Masters & Principals of the College: The college has two fellowships for visiting scholars; the Arthur Prowse Fellowship, named after the College's first Master, and the Arnold Bradshaw Fellowship. The fellowships are typically awarded for one academic term in conjunction with the Institute of Advanced Study with the fellow residing in the College and becoming a member