The BCS National Championship Game, or BCS National Championship, is the final bowl game of the annual Bowl Championship Series (BCS) and is intended by the organizers of the BCS to determine the U.S. national champion of the NCAA Division I Football Bowl Subdivision (formerly known as NCAA Division I-A). The participants are the two highest-ranked teams in the BCS standings at the end of the regular college football season, currently (until the end of the current BCS television contracts in 2013) determined by averaging the results of the final weekly Coaches' PollUSA Today, Harris Interactive Poll of media, former players and coaches, and the average of six participating computer rankings.
Since the formation of the Bowl Championship Series, there have been several controversies regarding the schools selected to participate in the BCS National Championship Game. Most notably, following the 2003 season, the BCS ranking system selected the #3 ranked school in the Associated Press writers' poll, the University of Oklahoma, over the #1 ranked school in that poll, the University of Southern California, to participate in the National Championship Game (the Nokia Sugar Bowl) despite Oklahoma's decisive loss to Kansas State in the 2003 Big 12 Championship Game. 2003 is the only season, to date, since the inception of the BCS in which the national championship has been split, with Louisiana State University winning the BCS national championship and the University of Southern California winning the AP national championship and the FWAA national championship.