1 sept 2010 año - Safety Rule Change

Descripción:

The position of the umpire has been moved from behind the defensive linebackers (except in the last two minutes of the first half, the last five minutes of the second half/overtime, and anytime the offense is inside the defense's five-yard-line) to the offensive backfield opposite the throwing arm of the quarterback in order to reduce the numerous times that the official has been run over during plays.