Now that the NCAA has denied USC's appeal to reduce sanctions imposed on its football program, Bowl Championship Series officials will consider whether to strip the Trojans of their 2004 title.
BCS executive director Bill Hancock says there is no timetable for that decision, but he expected it to happen "sooner, rather than later."
The championship would be left vacant and not awarded to another team.
USC won the 2004 national championship by beating Oklahoma 55-19 in the Orange Bowl to complete a perfect season. The NCAA later ruled Trojans star Reggie Bush had received improper benefits and was ineligible for that season.
Auburn and Utah also finished the '04 season unbeaten.
The AP will not vacate the championship it awarded USC for 2004.