Adam Reames, Michigan Department of State's Legislative policy director, testified in opposition to the legislation during two committee hearings in February. He said about 540 names are in the voter rolls with placeholder birthdays. If those who haven't participated in the past 20 years of elections don't properly return the mailing, their voter registration would be marked as challenged. If they don't participate in elections by the second November general election after receiving notice, their registration would be canceled. About 300,000 people are on voter rolls who haven't voted since before 2000, Reames said.