Six Flags Locations Announce New Guidelines for Minors originally appeared on Parade. Six Flags Great America is tightening its rules for minors following a recent incident, re-introducing a chaperone policy to ensure the safety of its visitors.

According to the policy, from 4 p.m. until closure, all guests 15 and younger must be with a parent, guardian or adult chaperone 21 or older to enter and remain