ZONI is the premier high school volleyball organization for referees in the Chicago area. To find out more information click here. Latest News….Voting for 2020-21 Executive Board May 17, 2020April 19th Meeting Canceled April 19, 2020ZONI Members Work Girls State 2017 January 30, 2018ZONI Members Work Boys State 2017 August 20, 2017ZONI Members Work Girls State 2016 November 15, 2016ZONI Members Work Boys State 2016 June 4, 2016ZONI Members Work Girls State 2015 December 4, 2015Fracz, Krzyzak Earn Junior National Referee Certification July 13, 2015ZONI Members Work 2015 Boys State July 1, 2015ZONI Members Work Girls State 2014 November 17, 2014123>>