This is slightly different from the "Countback" method used to fill vacancies in the Tasmanian House of Assembly. However, like the Tasmanian system, legislation provides for the ability to call a by-election if the party the vacating member stood for at the original election does not have any qualifying candidates – for instance, if all of their candidates at the original election were elected. Nomination as a candidate requires the following:  Note: Queensland and the two territories are unicameral, and do not have an upper house.