Proportional Representation - Casual Vacancies
| Casual Vacancies | ||
|---|---|---|
| Name of PR System | How is a casual vacancy filled? | |
| Commonwealth Senate | Senate System | The new member is chosen by the relevant State/Territory Parliament. If the vacating Member was endorsed by a political party at the time of election, the replacement must if possible be a member of the same party. |
| NSW Legislative Council | Optional preferential proportional representation | The new member is elected at a joint sitting of Upper and Lower Houses. Generally nominations are limited to the party for which the member vacating the seat was elected. |
| Western Australia Legislative Council | Proportional Representation | The new Member is chosen by recount. If a recount is not practicable, or if there is no available consenting candidate from the party of the vacating member, a by-election may be held for the vacant position. |
| South Australia Legislative Council | Modified Hare-Clark | The new Member is chosen by an assembly of both Houses of Parliament. If the vacating Member was endorsed by a political party at the time of the election, the replacement must if possible be nominated by the same party. |
| Tasmania House of Assembly | Hare-Clark | The new Member is chosen by recount. If a recount is not practicable, or if there is no available consenting candidate from the party of the vacating member, a by election may be held for the vacant position. |
| Australian Capital Territory Legislative Assembly | Hare-Clark | The new Member is chosen by recount. If a recount is not practicable, the Legislative Assembly shall choose a replacement as follows. If the vacating Member was endorsed by a political party at the time of election, the replacement must if possible be nominated by the same party. Otherwise the person chosen cannot have been a member of a political party during the preceding 12 months. |
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