The purpose of SORNA is to protect the public from sex offenders and offenders against children by providing a comprehensive set of sex offender registration and notification standards. These standards require convicted sex offenders, prior to their release from imprisonment or within 3 days of their sentencing if the sentence does not involve imprisonment, to register and keep the registration current in the jurisdictions in which they live, work, and attend school, and for initial registration purposes only, in the jurisdiction in which they were convicted, if such jurisdiction is different from the jurisdiction of residence.