All bodies of the South African government are subject to the rule of the Constitution, which is the Supreme law in South Africa.
Legislative
The bicameral Parliament of South Africa makes up the legislative branch of the national government. It consists of the National Assembly and the National Council of Provinces. The National Assembly consists of 400 members elected by popular vote using a system of party-list proportional representation. Half of the members are elected from parties' provincial lists and the other half from national lists. The President is elected by the members of the General Assembly. Upon election the President resigns as an MP and appoints a Cabinet of Ministers from among the members. Ministers however retain their parliamentary seats.
Executive
The President, Deputy President and the Ministers make up the executive branch of the national government. Ministers are Members of Parliament who are appointed by the President to head the various departments of the national government. The president is elected by parliament from its members.
Judicial
The third branch of the national government is an independent judiciary. The judicial branch interprets the laws, using as a basis the laws as enacted and explanatory statements made in the Legislature during the enactment. The legal system is based on Roman-Dutch law and English common law and accepts compulsory ICJ jurisdiction, with reservations. The constitution's bill of rights provides for due process including the right to a fair, public trial within a reasonable time.
Magistrates' Courts – The court where civil cases involving less than R100 000, cases.
Provincial government
The provincial governments of the nine provinces of South Africa have their own executive and legislative branches, but not separate judicial systems. In each province the legislative branch consists of a provincial legislature, varying in size from 30 to 80 members, which is elected through party-list proportional representation. The legislature elects one of its members as Premier to lead the executive branch, and the Premier appoints between five and ten members of the legislature as an executive council to lead the various departments of the provincial government.
Local government
in South Africa consists of municipalities of various types. The largest metropolitan areas are governed by metropolitan municipalities, while the rest of the country is divided into district municipalities, each of which consists of several local municipalities. After the municipal election of 18 May 2011 there were eight metropolitan municipalities, 44 district municipalities and 226 local municipalities. Municipalities are governed by municipal councils which are elected every five years. The councils of metropolitan and local municipalities are elected by a system of mixed-member proportional representation, while the councils of district municipalities are partly elected by proportional representation and partly appointed by the councils of the constituent local municipalities.