Both require superior scholarship and good character as criteria for membership. Faculty and alumni who have achieved scholarly distinction may also be elected. Eligibility for local and national scholarships to support a first year of graduate or professional study. Recognition of scholastic excellence by prospective employers and institutes of higher learning. Association with others dedicated to academic excellence and to service to humanity.
Membership is for life.
The Iowa State Chapter holds two initiations each academic year, one in the Fall and one in the Spring.