The voters in each of Maine's 16 counties elect three commissioners (York County elects five) to four year terms to oversee the operation of county government. Each commissioner serves a separate district within the county. Comissioners, as the counties' chief elected officials, are ultimately reponsible for the fiscal operations and policy decisions affecting county government. Additional duties include municipal tax abatement appeals and hearings on maintenance of town roads. They also serve, in effect, as the municipal official in Maine's many unorganized territories.