The referee, also known as the crew chief, is the leader of the officiating crew on and off the field. Lined up in the offensive backfield about 10–12 yards behind the line of scrimmage, the referee maintains the pace of the game, signals all fouls and counts the offensive players on the field. The referee is differentiated from the rest of the officials by wearing a white cap, is the final authority on all on-field rulings and consults with the Officiating Department in New York on replay reviews.