They must hold 50% of the seats in the house of reps, plus 1.
Federal government was introduced in Australia on 1 January 1901. The first Prime Minister of the new Commonwealth of Australia was Edmund Barton.
The leader of the government in Australia is the Prime Minister.
Tasmania is an island and a State of Australia. Australia has a parliamentary system. Prime Minister Kevin Rudd is the current head of the Commonwealth government .
The Honorable Nicola Roxon MP is the commonwealth minister of health and aging.
To begin with, the Northern Territory is a territory, not a state. This means it is administered by the Commonwealth Government in Australia. It has its own government, which is led by the Chief Minister, rather than the Premier which the states of Australia each have. However, its laws must ultimately be approved by the Commonwealth Government.
The highest political office in Australia is the position of the Prime Minister. The Prime Minister is the head of government and leads the executive branch. They are appointed by the Governor-General, who represents the monarch, and are typically the leader of the political party or coalition with the most seats in the House of Representatives.
In Australia some portfolios are duplicated, for example the Commonwealth and all states have a minister for Education and a Minister for Health.
From your question I take it that you are asking who is the political leader of Australia. At federal level the Prime Minister is the political leader who is responsible for leading the government, and as such they are the 'Chief Executive' of Australia if you like. The incumbent Prime Minister of Australia, at the time of writing this answer, is The Honourable Julia Gillard leader of the Australian Labor Party.
The Australian Government, sometimes referred to as the Commonwealth Government, or the Federal Government, was established by the Constitution of Australia.It is divided into three arms:Legislature - House of Representatives and the SenateExecutive - The Queen of Australia, the Governor-GeneralJudiciary - The High Court of AustraliaThe Prime Minister is a member of the House of Representatives in the Legislature (Parliament) and not in the Senate. The Prime Minister is also Australia's Head of Government and is considered apart of the Executive Government.
Australia's government is led by the Prime Minister. Australia does not have a president.
Australia is run by the Australian Government, which is led by the Prime Minister. As of September 2013, Tony Abbott is Australia's Prime Minister.
There was no single political leader in Australia before 191, as there was no country of Australia prior to 1901. The continent of Australia was divided into colonies, each led by a premier or, prior to that, a governor. It was not until 1 January 1901, when the six colonies of New South Wales, Victoria, Queensland, Western Australia, South Australia and Tasmania came together under a single federal government in an act known as Federation, that the nation known as the Commonwealth of Australia was formed, and a Prime Minister chosen to lead it.