The Zionsville School Board voted 3-2 Wednesday night to make masks mandatory for all students under 12. Author: Allen Carter Updated: 7:50 AM EDT July 29, 2021 ZIONSVILLE, Ind. — Zionsville Community Schools is one of the first to change its masking policy after new guidelines from the Centers for Disease Control and Prevention this week. The Zionsville School Board voted 3-2 Wednesday night to make masks mandatory for all students under 12. It’s a change from the "mask optional policy" approved earlier this summer. Superintendent Dr. Scott Robison said the decision came down to the CDC recommendation, but also due to increased COVID case numbers related to the delta variant.