There are two types of written law applicable in Malaysia: 1) The Federal Constitution, which is the supreme law that can only be amended by a two-thirds majority and establishes the Yang di-Pertuan Agong as head of state. Any laws inconsistent with the Constitution passed after independence are void. 2) Subsidiary Legislation, which is made by bodies authorized by the legislature to further define laws, such as rules and regulations, as defined in the Interpretation Act of 1967. Parliament can pass legislation during emergencies that may contradict the Federal Constitution.