The NCAA Injury Surveillance System (ISS), an ongoing surveillance database maintained by the NCAA. The ISS provides NCAA committees, athletic conferences and individual schools and NCAA-approved researchers with injury, relevant illness and participation information that does not identify individual athletes or schools. The data provide the Association and other groups with an information resource upon which to base and evaluate the effectiveness of health and safety rules and policy, and to study other sports medicine questions. This letter is meant to satisfy requirements of the Health Insurance Portability and Accountability Act (HIPAA).