If you are convicted of a sex crime in Pennsylvania, you will likely have to register as a sex offender. The specific registration requirements you will have to follow will depend on the severity of the crime you are convicted of. Less severe offenses have less onerous registration requirements, and those registration requirements usually terminate after a certain period. The most serious sex crimes will lead to the imposition of the most severe sex offender registration requirements, with the most serious offenders having lifetime registration requirements. In addition, if you are determined to be a sexually violent predator, you will have a lifetime registration requirement.