Duplicate Number Question

[MD Longhorn]

So ... given the situation you describe - and assuming you think some violation of this rule occurred --- exactly when do you penalize?

A18 QB's plays 1-3 of a series, then the other A18 comes on and punts. Penalty then? I suspect you're saying no. It's clear QB and punter are different positions.

Later, A18 QB's plays 1-3 of a series, then stays on the field for 4th down as several other substitutions occur, and then lines up a bit deeper but plays ... quarterback, like he did the rest of the game ... and throws a pass. Penalize then? Sounds like that's when you want the penalty to occur - but how is a QB staying on the field to play QB a violation of this rule?

Yes - the entire fault in all this is the poorly worded rule and the lack of definition or even caseplay to go by. But if the rule was worded correctly, I still don't see a foul here (perhaps if the rule was worded differently, the foul would actually be when the punter came out the first time and punted.)