Below is an overview of how your government, Prince William County government, operates. The eight-member Board of County Supervisors is elected by the residents of Prince William County and is the policy-making body for the county government. The Board adopts local laws, sets policies, decides how money will be spent and makes local land use decisions. The Board appoints a County Executive to act as the chief administrative officer and oversee the County government on a day-to-day basis.