From the abstract:
The findings indicate that registration requirements and residence restrictions vary significantly by state for nonresident registrants. While not surprising given that numerous studies have highlighted that sex offender policies produce unique and severe challenges for all sex offenders in the United States. This study, however, suggests that nonresident sex offender policies are potentially another collateral consequences for registrants. Most notably, there is significant variation in the number of days a registered sex offender has to register in any given state when they come to visit for any occasion. Depending on the state or jurisdiction that the registrant is visiting, residence restrictions may also be applicable. As a result of these laws, registrants may feel stymied from visiting another state, which may further delineate prosocial opportunities, including gatherings with family and friends or fulfilling employment obligations.Read the study here.