Slovakia is governed under the constitution of 1992 as amended. The president, who is the head of state, is elected by popular vote for a five-year term and is eligible for a second term. The prime minister, who is the head of government, is appointed by the president with the approval of the legislature, as is the cabinet. The unicameral legislature, the National Council, has 150 members who are popularly elected by proportional representation for four-year terms. Administratively, the country is divided into 8 regions.