president. Thirteen ministers head various executive departments. The ministers can be removed by the General Assembly by a majority vote. The Constitution amendment establishes the requirements for becoming President. Article 151 establishes that the President must be a natural-born citizen of the country, or have been born to an Uruguayan citizen if born abroad. The President must also be at least 35 years old and be registered in the National Civic Registry. The current president since 1 March 2020 is Luis Lacalle Pou, the son of the 36th president, Luis Alberto Lacalle. Legislative branch The General Assembly (Asamblea General) has two chambers. The Chamber of Representatives (Cámara de Representantes) has 99 members, elected for a five-year term by proportional representation with at least two members per department. The Chamber of Senators (Cámara de Senadores) has 31 members; 30 members are elected for a five-year term by proportional representation and the Vice-president who presides over it. Judicial branch The Judiciary of Uruguay is headed by the Supreme Court of Justice, whose members are appointed by the General Assembly through a two-thirds majority and whose terms last ten years. The Supreme Court of Justice is the last instance of appeal and is also in charge of judging the constitutionality of the laws. The judiciary is also made up of Courts of Appeals, Legal Courts and Peace Courts. Direct democracy The Uruguayan political system allows citizens to use direct democracy mechanisms to directly take political decisions on the current legal system without intermediaries. These mechanisms are the referendums to repeal recently approved laws, plebiscites to propose changes to the Constitution and the power of citizens to drive popular initiatives such as to propose referendums, to propose law drafts to the Parliament, to reform the Constitution and to deal with departmental matters. Political parties and elections International organization participation Uruguay or Uruguayan organizations participate in the following international organizations: The Food and Agriculture Organization (FAO) Group of 77 (G-77) Inter-American Development Bank (IADB) International Atomic Energy Agency (IAEA) International Bank for Reconstruction and Development (World Bank) International Civil Aviation Organization (ICAO) International Criminal Court (ICC) International Chamber of Commerce (ICC) International Red Cross International Fund for Agricultural Development (IFAD) International Finance Corporation (IFC) International Federation of Red Cross and Red Crescent Societies (IFRCS) International Hydrographic Organization (IHO) International Labour Organization (ILO) International Monetary Fund (IMF) International Maritime Organization (IMO) Interpol International Olympic Committee (IOC)