Why are the names of people who no longer live in Jefferson still on the voter registration list?

Due to Maine Voter Registration Laws no changes can be made to a voter's registration status without:

1. Written confirmation from the voter

2. Written notification from the registrar in the voter's new residence

3. Written changes made at the Bureau of Motor Vehicles and forwarded to the Town Office

4. Certified death records or obituaries

5. Or, during a National Voter Registration Act voter registration list purge.