1) The document provides guidance to students on what to do during a Code Blue lockdown at their school. It explains that a Code Blue is called when there is a threat to student safety. 2) During a Code Blue, all entrances are locked, classroom doors are locked, lights are turned off, and students must get on the floor and remain silent. 3) If a student is in the halls or bathroom, they must immediately and quietly enter the nearest classroom, regardless of who is inside. Students are instructed to follow all Code Blue procedures, like remaining silent, and not open the door for anyone until an all clear is given.