Major Rule Changes for 1947
On April 3, 1947 A fifth official, the Back Judge, is added to the officiating crew.
When a team has fewer than 11 players on the field prior to a snap or kick, the officials are not to notify them.
An illegal use of hands penalty will be called whenever a defensive player uses them to block the vision of a receiver during any pass behind the offensive team’s line.
During an unsuccessful extra point attempt, the play becomes dead as soon as failure is evident.
Roughing the kicker will not be called if he kicks after recovering a loose ball or fumble on the play.
All teams are required to use prescribed standard yardage chains, down boxes, and flexible shaft markers.
Games are no longer played on Tuesdays.
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