An outside investigator will be appointed to lead the inquiry, The New York Times reported Monday.
Rice was fined and suspended after a 30-minute video, that showed him verbally and physically abusing players during practice was reviewed by school officials in December.
After portions of the video were broadcast last week on ESPN, Rice was fired and three others in the athletic department resigned.
Texas principal bans speaking Spanish, stirs controversy
Ron Burgundy interviews Peyton Manning on SportsCenter