That is the whole purpose of what USA Wakeboard is about. USA is a member of the United States Olympic Committee and they have all the tools you need. Most schools have a protocal forming new clubs but its pretty easy. Simply ask for the guidelines of forming a club sport from the athelitic director of the school.
You may set up a club with USA for $75.00 The annual insurance + 9 issue publication is $40.00 for those under 25.
We have a full time specialist to help you http://www.usawaterski.org/Employee%20Bios/MelH.Bio.html
or you may call Melanie Hanson at 863-324-4341
Im on the board of directors as a volunteer but you can call my cell 765-744-6310 and I can help you out