The AIA is a voluntary association of public and private high schools which was established by and is responsible to its members. The democratic governance of the AIA provides representation and input opportunities to all its member schools through their governing board members, administrators and teachers who serve on the Legislative Council, Executive Board and ad hoc committees. The history of the AIA, which can be traced back to 1913, has been marked by rapid growth, constant improvement, and successful achievement of its major goals. These achievements have occurred primarily through the harmonious and cooperative efforts of those individuals who have been selected by the membership to represent their interest.