At least every 60 days, each member submits their voter registration data and licensing and identification data from motor vehicle departments (MVD) to ERIC. ERIC refers to these data as Member Data. ERIC’s technical staff uses powerful data matching software to compare Member Data from all member states, sometimes with data from other sources, to create the following four “list maintenance” reports.
- Cross-State Movers Report: Identifies voters who appear to have moved from one ERIC state to another using voter registration data and MVD data.
- In-State Movers Report: Identifies voters who appear to have moved within the state using voter registration and MVD data.
- Duplicate Report: Identifies voters with duplicate registrations in the same state using voter registration data.
- Deceased Report: Identifies voters who have died using voter registration data and Social Security death data known as the Limited Access Death Master File.