Halo violation

From 1983 until the end of the 2002 season, in the NCAA (college football) the halo rule was a foul for interference with the opportunity to catch a kick. The so called halo rule stated that no player of the kicking team may be within two yards of a receiving team player positioned to catch a punt or kickoff (before that person has touched the ball). The rule was abolished beginning in the 2003 season.