Bosnia is governed under constitution included in the Dayton Agreement, signed 1995; a high representative of the Peace Implementation Council (the nations overseeing the peace process) is the final authority on the civilian aspects of the settlement, and has the power to dismiss elected Bosnian officials. There is a three-member presidency, made up of one Bosniak, one Croat, and one Serb, whose chairman (rotated every eight months) is head of state. The head of government is the chairman of the Council of Ministers. The bicameral Parliamentary Assembly consists of the 42-seat, popularly elected House of Representatives and the 15-seat, indirectly elected House of Peoples. Adminstratively, the country is divided into the Bosniak and Croat Federation of Bosnia and Herzegovina and the Serb-led Serbian Republic of Bosnia Herzegovina; additionally, the Brčko district is an internationally supervised district.