This is where teams must have earned a bid from their own country to attend.
One team earned an automatic bid by winning their regional tournament.
Highland football earned an additional bid in the 2008 state playoffs.
Virginia Commonwealth earned the conference's automatic bid and was given an 11th seed.
Three teams earned automatic bids by winning their region's regular season title.
The next six teams with the highest conference winning percentage also earn a bid, regardless of division.
Currently, teams that finish in the top 25 percent of each regional earn an automatic bid to the national tournament.
Seven teams earned automatic bids by winning their regional tournaments.
The Tigers, who lead the nation in scoring defense by allowing opponents just 48.1 points a game, earned an automatic bid to the 64-team field.
Thirty of the teams earned automatic bids by winning their conference tournaments.