SCAT3, or the Sport Concussion Assessment Tool 3rd Edition, is a standardized tool used to evaluate athletes for concussions. It provides a comprehensive assessment that includes symptom checklists, cognitive tests, and balance evaluations. The tool is designed for use by medical professionals and coaches to ensure the safety of athletes after a head injury. The SCAT3 is typically administered on the sidelines of a sporting event or in a clinical setting. It helps determine whether an athlete should return to play or requires further medical evaluation. This tool is part of a broader effort to improve concussion management in sports.