Question about player and 4 quarters per night...

[Pirate]

If the rule is a player may participate in four quarters total per night, regardless of level (varsity, jv, etc.), can he/she participate in an overtime should the game go into OT? I'm assuming that if the player had already burned their four quarters prior to the fourth quarter or OT of a varsity contest, this would not be allowed?! If however, the player was a participant in the fourth quarter, would you treat the OT's like an extension of the fourth quarter and would the player be allowed to participate? I know this is really not a decision that officials are responsible for making, but I was asked this question by one of our coaches at the high school I teach at, so I'm asking you guys, the experts. Thanks.

Pirate