What are the regulation of football?

ELIMINATION OF FORCE OUT RULE ON RECPTIONS REVIEW OF F.G. AND EXTRA POINT ATTEMPTS TO SEE IF IT BROKE THE PLANE OF THE GOAL POSTS ELIMINATION OF 5 YD. PENALTY FOR INCEDENTAL FACE MASK CONTACT,15 YD TO REMAIN FOR TWISTING OF THE HELMET ONE COMMUNICATION DEVICE FOR ONE DEF. PLAYER AND THE DEF. CORD. AND ONE PERTAINING TO THE COIN TOSS AND THE SECOND HALF