The Grand National Assembly (Türkiye Büyük Millet Meclisi in Turkish) is the unicameralparliament of Turkey which carries out legislative functions. Election of its 550 members, who serve five-year terms, is by proportional representation. To participate in the distribution of seats, a party must obtain at least 10% of the votes cast at the national level as well as a percentage of votes in the contested district according to a complex formula.