Safety?
 

Another referee asked me this question...

ball on A's 5 yrd line. A drops back to pass and is standing in the end zone when A-76 is called for holding, the pass was a incomplete pass, if B accepts the penalty is it a safety?

In short, it is not a safety cuz it doesn't matter where the QB is, but where the hold occurs. Here is a longer explanation.

This is a loose ball play, so the basic spot for penalty enforcement is the previous spot. The all but one principle states that a foul by the offense behind the basic spot is enforced from the spot of the foul. If A76 is holding on the 1 yard line, the 1 is the enforcement spot, if he is on the 3, the 3 is the enforcement spot. It would be a safety if A-76's hold is in the EZ, but not if it is outside the EZ.

It would also be a safety if A-76's foul was at the 5, but the A player with the ball was tackled in the EZ, or the ball became dead behind the GL anothe way.