A sex offender's failure to register or verify his registration in person, if required, is a separate crime under New York law.  The first offense is a misdemeanor, with a maximum penalty of one year in jail.  All subsequent offenses are Class D felonies, which carry more serious penalties depending on prior criminal history.  A Megan's Law violation may also be a reason for a parole violation, which generally leads to immediate arrest without bail.  Under a new federal law that became effective in 2006, a person who is required to register based on a federal conviction or because he or she moved to a new state and fails to register can be prosecuted as a felon, with a maximum penalty of ten years.