However, the N.C.A.A. does not administer the football playoff, which consists of two semifinal games — this year, the Orange Bowl and the Cotton Bowl, on Dec. 31 — and a national championship game, to be held on Jan. 11 in Glendale, Ariz.

Instead, the Playoff is managed by the 10 Football Bowl Subdivision conferences and Notre Dame, which is independent in football. While many conferences have expressed skepticism about daily fantasy sports, they have taken different positions on whether advertisements should be broadcast during conference games or on conference-owned cable networks.

Several states, including New York, as well as the F.B.I., are examining whether the fantasy games, in which players assemble a lineup of real players and then win or lose money based on how those players perform, violate the law.

Several conference commissioners have publicly expressed concern over the influence of the games on college-age consumers. The N.C.A.A. bars its athletes from sports wagering, including via daily fantasy sports, which it considers gambling.

In August, the N.C.A.A. and the F.B.S. conferences asked DraftKings and FanDuel, the two most prominent daily fantasy websites, to refrain from offering games that involve college football. In October, in a letter obtained by The New York Times, the N.C.A.A. broke off planned meetings with the sites, with an executive vice president writing, “We believe that your product should not be offered in the college space for a variety of reasons, and we do not believe a further meeting with your organizations will change that view.”