The Web site which is REQUIRED to be checked in Standard HR-4A (National Sex Offender Public Registry) has both changed its name and Web address.

NEW name is:
Dru Sjodin National Sex Offender Public Web Site

NEW Web address is:
www.nsopw.gov. 

This is the most often missed Mandatory standard as this very specific site must be checked.  There is no charge and it now includes all states.