The University of Michigan and football head coach Jim Harbaugh are currently under investigation by the NCAA for numerous potential rules violations that includes a Level I violation against Harbaugh for failing to cooperate with investigators.
According to the Yahoo! Sports article above, the program is also being investigated for four Level II violations, which are generally considered minor. The Level I allegation is that Harbaugh misled NCAA investigators when confronted with questions about the Level II allegations. A Level I violation could lead to significant recruiting restrictions or even a suspension for a number of games.