Redistribution (Australia)
Section 24 of the Constitution of Australia requires that the total number of members of the Australian House of Representatives shall be "as nearly as practicable" twice as many as the number of members of the Australian Senate. There is presently a total of 76 senators: 12 senators from each of the six states and two from each of the two autonomous internal territories (the Australian Capital Territory and the Northern Territory). There are 150 members of the Australian House of Representatives.
Parliament of Australia
The lower house, the House of Representatives, currently consists of 150 members, each elected using full-preference instant-runoff voting from single-member constituencies known as electoral divisions (and commonly referred to as "electorates" or "seats"). This tends to lead to the chamber being dominated by two major political groups, the centre-right Coalition (consisting of the Liberal and National Parties) and the centre-left Labor Party. The government of the day must achieve the confidence of this House in order to gain and remain in power.