Sex Offender Registration and Notification in the United States: Current Case Law and Issues [open pdf - 717KB]
"In the United States, sex offender registration is conducted at the local level. The federal government does not have a system for directly registering sex offenders. Generally speaking, sex offenders in the United States are required to register with law enforcement in each state, locality, territory, or tribe within which they reside, work, or attend school. Each state has its own distinct sex offender registration and notification system. The District of Columbia and the five principal U.S. territories each have their own systems, as well, and an increasing number of federally-recognized Indian Tribes also have their own sex offender registration and notification systems. Every one of these systems has its own nuances and distinct features. Every jurisdiction (meaning each state, territory, or tribe) makes its own determinations about who will be required to register, what information those offenders must provide, which offenders will be posted on the jurisdiction's public registry website, and so forth. Even though sex offender registration itself is not directly administered by the federal government, the federal government is involved in sex offender registration and notification in a number of meaningful ways."
Office of Sex Offender Sentencing, Monitoring, Apprehending, Registering, and Tracking: http://smart.gov/