I am in the process of booking a room in Charlotte for the weekend of March 28-30. I noticed under the special event rate of $209 the following:

SPECIAL EVENT RATE * KING ROOM (1 KING BED) * MAX 3 PPL *NO PARTY POLICY IN EFFECT*

I've never seen this no party thing before and was just curious if different groups require the hotel to be that way in order to book a block of rooms? I looked the weekend before and did not see this notation on the room rates.