Australia is a representative democracy in which all Australians over 18 years vote for people to represent them, and make decisions on their behalf.
The decision-making body of the federal government is Federal Parliament, which consists of two houses – the House of Representatives and the Senate.
The leader of the federal government is called the Prime Minister.
A federal election must be held every three years because Australia's Constitution limits the term of Members of the House of Representatives.
Representatives elected to the House of Representatives are called Members of the House of Representatives. There are 150 members and each member represents a separate division or electorate in Australia. (To find out which electorate you live in, go to 'Find my Electorate' and type in the suburb or postcode where you live.)
Representatives elected to the Senate are called senators. They represent a whole state or territory. There are 12 senators for every state and two senators for each territory. Senators representing states are elected for a term of six years, with senators representing territories elected for a term of three years.
Federal government responsibilities include: foreign affairs, social security, industrial relations, trade, immigration, currency, defence.
The decision-making body of state government is the state parliament which meets in the Parliament House of the particular state. Each state parliament, except for the Queensland Parliament, is made up of two houses.
Representatives elected to state parliaments are generally known as 'Members' – Members of the Legislative Assembly (MLA) or Members of the House of Assembly (MHA) or Members of the Legislative Council (MLC).
The leader of a state government is called the Premier.
The Northern Territory and the Australian Capital Territory have a different arrangement. Each territory parliament has one house called the Legislative Assembly.
The leader of each territory government is called the Chief Minister.
State and territory government responsibilities include: justice, consumer affairs, health, education, forestry, public transport, main roads.
The decision-making body of local government is usually called the city council or shire council. Councils are established by state governments to look after the particular needs of a city or local community. The people's representatives who form the Council are called aldermen or councillors. The head of the Council is the Mayor or Shire President.
Local government responsibilities include: local road maintenance, garbage collection, building regulations and land subdivisions, public health and recreation facilities such as swimming pools.