Three polls and one formulaic ranking make up the 2007 NCAA Division I FBS (Football Bowl Subdivision) football rankings, in addition to various publications' preseason polls.
Unlike most sports, college football's governing body, the NCAA, does not bestow a national championship title.
About halfway through the season, two additional polls are released, the Harris Interactive Poll and the Bowl Championship Series (BCS) standings.
As a result of Michigan's loss to Division I FCS Appalachian State, the AP Poll changed its policy on not allowing pollsters to vote for Division I FCS opponents.
Now, if the Division I-FCS team has played a Division I FBS team, they are eligible to be voted for in the AP Poll.