Several years ago, the Campus Activities Chair of my APO chapter contacted the IU Student Foundation to find out what we had to do to participate in IU Sing. (It is a competition where groups put together song-and-dance skits and it is great fun.) There were lots of brothers in the chapter who wanted to participate. The person in charge of IU Sing said that the competition was only open to residence halls and fraternities and sororities...and apparently APO didn't count as a fraternity because we weren't part of IFC.