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
In an election following a double dissolution, each state elects their entire 12-seat Senate delegation, while the two territories represented in the Senate each elect their two senators as they would in a regular federal election. Because all seats are contested in the same election, it is easier for smaller parties to win seats under the single transferable vote system: the quota for the election of each senator in each Australian state in a full Senate election is 7.69% of the vote, while in a normal half-Senate election the quota is 14.28%.