<Tr> <Td_colspan="2"> ← 2003 2005 → </Td> </Tr> <P> The 2004 NCAA Division I-A football season was the highest level of college football competition in the United States organized by the National Collegiate Athletic Association (NCAA) in 2004 . The regular season began on August 28, 2004 and ended on December 4, 2004 . The postseason concluded on January 4, 2005 with the Orange Bowl, which served as the season's BCS National Championship Game . </P> <P> USC defeated Oklahoma in the Orange Bowl by a score of 55--19, which earned the Trojans their second consecutive AP title and first - ever BCS title . The Orange Bowl win and accompanying BCS title were later vacated as part of the sanctions levied against USC following an NCAA investigation . USC appealed the decision but was denied by the NCAA, and the 2004 BCS title was officially vacated on June 6, 2011 . </P> <P> The NCAA Rules Committee adopted the following rule changes for the 2004 season: </P>

Who won the college football national championship in 2004