California's sex offender registration program actually began in 1947, however the information was not available to the public until 1996 when the California Legislature passed "Megan's Law." "Megan's Law" also allows law enforcement agencies to provide certain information to the public about registered sex offenders. The Napa County Sheriff's Office, along with other local law enforcement agencies, closely tracks sex offenders residing in Napa County and this website is intended to assist the citizens of our county in making decisions regarding personal and family safety.