While in the Grand Forks area, I stopped by the UND campus to get a couple photos of their campus shuttles. They have a six bus fleet:
(1) 2001 AmTran
(1) 2002 International
(2) 2004 International
(1) 2007 International
(1) 2011 International
No fleet numbers seem to be used, only a special set of plates, I assume these are part of a fleet series for the UND motorpool. the fleet is owned and operated directly by UND.
Historically UND also provided motorcoach services to its students and staff for any University related needs. From a couple of photos floating in the cloud on Bing search results, these appeared to be an MC-9 and an E4500 or J4500. I can't get solid links to the photos themselves though.
While this is not really a public transit system I thought perhaps some might be interested in seeing these unique 'school' buses.