Currently, there are 3 ranks in a club:
Leader - club founder, he is able to promote and demote other players, add and remove members, edit club description and club message, set entry requirements and club's country, and change the club's emblem. A Leader can also pass leadership to a different member.
Vice-leader - player who can promote and demote other members of the club, add and remove members
Member - player who is a part of a club and don't have additional privileges.