Each team is to supply 12 quarterback altered footballs to the referees before the game .
The referees are supposed to check referees to make sure the balls are blown up to be within the 12.5 to 13.5 psi standards .
Each team is to supply 12 quarterback altered footballs to the referees before the game and the referees are supposed to check them to make sure the balls are blown up to be within the 12.5 to 13.5 psi standards .