Guinea-Bissau is governed under the constitution of 1984 as amended. The president, who is the head of state, is popularly elected for a five-year term; there are no term limits. The prime minister, who is the head of government, is appointed by the president. The unicameral legislature consists of the 100-seat National People's Assembly, whose members are popularly elected for four-year terms. Administratively, Guinea-Bissau is made up of nine regions.