Are you up for the challenge? Enter NIJ’s first-ever SORNA Challenge! NIJ is seeking innovative ways of developing strategies to measure the implementation costs and public safety benefits of the Sex Offender Registration and Notification Act (SORNA) — part of the Adam Walsh Child Protection and Safety Act of 2006 — by improving the effectiveness of sex offender registration and notification programs in the United States. Notification and registration programs have multiple public safety purposes, and empirical research on sex offenders has grown over the past decade. No study to date, however, has examined the multifaceted effects of SORNA, specifically the wide range of costs incurred in implementing the rules or the public safety benefits achieved. Learn more.