From 1919 through 1988, Zonta was a women´s organization. After United States Supreme Court ruled that Rotary International must admit women, Zonta IOnternational´s Bylaws were amended to allow individual clubs to invite men to membership. 2016, the majority of members are still women.
Special leadership experiences and competences were required. Most Zontians have leadership positions.
Zonta International Bylaws defines who is entitled to become a Zontian (ZI Bylaws Article XIV, section 2)
Persons who want to join Zonta should take contact to a Zonta club (Link?)