Having gone through this myself recently, it should not apply to parents attending events, if they are just a passive attendee, such as being in an audience for

Having gone through this myself recently, it should not apply to parents attending events, if they are just a passive attendee, such as being in an audience for a school play. It does apply to any administrator, employee, or regular volunteer. Iirc the regular volunteer part has a number of hours of total volunteerism over the course of a year that is relatively low so if you are helping out with any frequency then yes, this probably applies.