The receiving team must have at least 4 players within 5 yards of their 40 yard line until the ball is kicked. Free Kick may only be advanced by the receiving team. A muff by the receiving team is a dead ball at that spot. Any ball kicked across the end zone line is a touchback and cannot be advanced. Any ball caught and carried over the end zone can be run out.
Any ball touched by the kicking team within the field of play becomes dead at the spot.
The kicking team cannot recover an outside kick. The offensive team must have at least 4 men on the line of scrimmage at the time of snap, none within 5 yards of a sideline. Defensive team scrimmage line is one yard off the ball. When the ball is snapped the offensive team must have 4 players on their scrimmage line. Any player who crosses their scrimmage line prior to the snap causes the ball to become dead.