The Elkhart Truth reports that streamlining the state’s voter registration rolls followed a set of mailings to establish a list of active and inactive voters.

Elkhart County’s voter registration office manager Chad Clingerman says a majority of voter registrations marked inactive or canceled were due to unreported address changes.

State elections officials cleaned up the voter registration lists to comply with the national voter registration law.

Indiana Secretary of State’s office said in a release that more than 480,000 inactive voter registrations have been purged from the state’s voter rolls.