It is the position of the National Association of School Nurses (NASN) that the registered professional school nurse (hereinafter referred to as school nurse) provides leadership/care coordination in collaboration with the school-based team to manage student concussion. The school nurse has the healthcare knowledge and skills to provide concussion prevention education to parents/guardians, students, and school staff; identify suspected concussions; and help guide students as they return to academics/learning, physical activities, and sports. This document provides the background and rationale for NASN's position. [This position statement was initially adopted in January 2012 and was revised in June 2016 and January 2021.]