2 Plays

[FootballRef05]

[QUOTE=Theisey]There are many times when a BBW is illegal (NCAA) such as after any change of team possession, during a kick down, during a scrimmage down and you did it do an eligible receiver, a team-A player in position to receive backwards pass behind the NZ, team-A players 7 yards outside the middle lineman blocking towards the original position of the bali up to 10 yards beyond the NZ, same goes for backs.

When in doubt there, it is below the waist.[/QUOTE]

On page 85 of the Fed Officials Manual

Guides for - When In Question

Incomplete pass or Fumble - Incomplete pass
Forward or Backward pass- Forward
Kick or pass touched or not - Not
Catch or not - No Catch
Passer has thrown or Fumbled - Has Thrown
Touchback or Saftey- Touchback
Fumble or Dead Ball - Dead Ball
Apparently Injured or Not- Injured
Apparently Unconscious or Not - Unconscious
Accidental or Intentional - Accidental (Contact,Touching,Kicking)
Legal Block or Clip - Legal
Block Above or Below the Waist - ABOVE
5-15 Face Mask- 15
5-15 Kicker/Holder - 15