American Football IFAF Approved Ruling 9-1-10:I- IV

I. On a forward pass play, A75 is blocking B66 at the waist behind the neutral zone. While A75 maintains contact, A47 subsequently blocks B66 at his thigh. RULING: Chop block. 15 yards from the previous spot. [Cited by 2-3-3, 9-1-10]
II. As the flow of the play moves to the left, right tackle A77 is disengaging from his block above the thigh with B50 when A27 blocks B50 at his knee. RULING: Chop block, 15 yards.Previous-spot enforcement if the foul occurs behind the neutral zone. [Cited by 2-3-3, 9-1-10]
III. Immediately after the snap, left guard A65 and left tackle A79 simultaneously block B66, who is in the neutral zone. (a) Both blocks are at the thigh. (b) One contact is at the waist and
the other at the knee. RULING: (a) Legal blocks for a low-low combination. (b) Foul, chop block. [Cited by 2-3-3, 9-1-10]
IV. Tight end A87 and wingback A43 are leading the play when both simultaneously block linebacker B17, who is three yards beyond the neutral zone. (a) Both blocks are above the waist. (b) One block is above the waist and the other at the knee. RULING: (a) Legal blocks. (b) Foul, chop block. [Cited by 2-3-3, 9-1-10]