county level. The cornerstone of a county commission government is an elected board of commissioners. The board of commissioners functions as the county's primary legislative and policy-making body. Most boards of commissioners also control county land usage, oversee environmental issues and possess executive powers, meaning they have the authority to appoint or remove departmental heads. County commission systems do not feature a chief executive office. However, some boards of commissioners hire an appointed chief administrative officer, who assists the board with executive and administrative tasks. This position is comparable to a city-manager position commonly found in council-manager forms of government. Other elected or appointed offices in a county commission system might include an auditor, a treasurer, a county attorney, a clerk, a coroner and a sheriff.