Blocking Below the Waist
ARTICLE 6. a. Team A prior to a change of team possession:.
1. While the ball is inside the tackle box, the following players may
legally block below the waist inside the tackle box until they leave the
tackle box: linemen completely inside the tackle box, and stationary
backs at least partially inside the tackle box and at least partially
inside the frame of the body of the second lineman from the snapper.