Illegal Blocking

Originally posted by RefNVa
Please cite the NF rule that says only DL/OL may block BTW in the FBZ.

2-17-2
ART. 2 . . . Blocking below the waist is permitted in the free-blocking zone when the following conditions are met:

a. All players involved in the blocking are on the line of scrimmage and in the zone at the snap.
b. The contact is in the zone.