QB eligible receiver

[Dibbs]

I’m an Athletic Director for a Pop Warner charter in New York. Our league plays under NHFS rules. I had the referee in a game yesterday call a penalty for a QB not an eligible
Receiver. The referee told me that if the QB is under center he is not eligible. QB is only eligible if in the shotgun position. I believe this a NFL rule only and that in the high school rules the QB is always eligible. If someone could clear this up with a rule reference, it would be appreciated.