The legislature, also known simply as parliament, is made up of democratically-elected representatives from around Australia.
These representatives meet at Parliament House in Canberra to discuss legislation and make laws for the benefit of the nation. The issues that they can make laws on are defined by sections 51 and 122 of the Constitution.
The Commonwealth Parliament comprises two separate chambers:
- the House of Representatives (or 'the lower house')
- the Senate (or 'the upper house')
The House of Representatives has 150 members, each representing a different area of the country ('electorate'). Each electorate has roughly the same number of registered voters within its boundary, meaning that states with larger populations have more electorates and therefore more representatives in the House.
The Senate is composed of 76 members. Unlike the House of Representatives, membership of the Senate is divided evenly between the states. Each state has 12 senators, and the Northern Territory and the Australian Capital Territory have 2 senators each. The Senate was established this way to ensure that the larger states could not use their majority in the House of Representatives to pass laws that disadvantaged the smaller states.
The Constitution is silent on the role of political parties in parliament. It does not make any reference to a government party, an opposition party or minor parties, or to roles like Prime Minister and Leader of the Opposition. These are conventions that have been adopted to assist the smooth operation of the legislature.