2-17-4 Diagram

2-17-1, 2-17-2, 2-17-4 It is legal for offensive linemen to block below the waist in the free-blocking zone, provided both players were on their lines of scrimmage and within the zone at the time of the snap and the block is an immediate, initial action following the snap. No. 77 could only block No. 62 below the waist if the block was immediate, initial action following the snap. No. 65 can block No. 93 below the waist even though No. 93 is playing off his shoulder, if the block is an immediate, initial action following the snap. No. 72 could not block No. 55 below the waist at any time during this play.