The Westminster system, or Westminster model, is a type of parliamentary government that incorporates a series of procedures for operating a legislature, first developed in England. Key aspects of the system include an executive branch made up of members of the legislature, and that is responsible to the legislature; the presence of parliamentary opposition parties; and a ceremonial head of state who is separate from the head of government. The term derives from the Palace of Westminster, which has been the seat of the Westminster Parliament in England and later the United Kingdom since the 13th century. The Westminster system is often contrasted with the presidential system that originated in the United States, or with the semi-presidential system, based on the government of France.
The prime minister of New Zealand is the head of government of New Zealand. The incumbent prime minister, Christopher Luxon, leader of the New Zealand National Party, took office on 27 November 2023.
In a parliamentary or semi-presidential system of government, a reserve power, also known as discretionary power, is a power that may be exercised by the head of state without the approval of another branch or part of the government. Unlike in a presidential system of government, the head of state is generally constrained by the cabinet or the legislature in a parliamentary system, and most reserve powers are usable only in certain exceptional circumstances.
A constitutional convention is an informal and uncodified tradition that is followed by the institutions of a state. In some states, notably those Commonwealth of Nations states that follow the Westminster system and whose political systems derive from British constitutional law, most government functions are guided by constitutional convention rather than by a formal written constitution. In these states, actual distribution of power may be markedly different from those the formal constitutional documents describe. In particular, the formal constitution often confers wide discretionary powers on the head of state that, in practice, are used only on the advice of the head of government, and in some cases not at all.
The premier of Ontario is the head of government of Ontario. Under the Westminster system, the premier governs with the confidence of a majority the elected Legislative Assembly; as such, the premier typically sits as a member of Provincial Parliament (MPP) and leads the largest party or a coalition of parties. As first minister, the premier selects ministers to form the Executive Council, and serves as its chair. Constitutionally, the Crown exercises executive power on the advice of the Executive Council, which is collectively responsible to the legislature.
The Cabinet of New Zealand is the New Zealand Government's body of senior ministers, accountable to the New Zealand Parliament. Cabinet meetings, chaired by the prime minister, occur once a week; in them, vital issues are discussed and government policy is formulated. Cabinet is also composed of a number of committees focused on specific areas of governance and policy. Though not established by any statute, Cabinet has significant power in the New Zealand political system and nearly all bills proposed by Cabinet in Parliament are enacted.
The Executive Council of New Zealand is the full group of "responsible advisers" to the governor-general, who advise on state and constitutional affairs. All government ministers must be appointed as executive councillors before they are appointed as ministers; therefore all members of Cabinet are also executive councillors. The governor-general signs a warrant of appointment for each member of the Executive Council, and separate warrants for each ministerial portfolio.
The Cabinet of Australia, also known as the Federal Cabinet, is the chief decision-making body of the executive branch of the federal government of Australia. The cabinet is appointed by the prime minister of Australia and is composed of senior government ministers who head the executive departments and ministries of the federal government, this often includes assistant ministers and a number of special envoys and other government advisors. The cabinet is separate to the federal Department of the Prime Ministers and Cabinet.
The Government of Canada is the body responsible for the federal administration of Canada. The term Government of Canada refers specifically to the executive, which includes ministers of the Crown and the federal civil service ; it is alternatively known as His Majesty's Government and is corporately branded as the Government of Canada. There are over 100 departments and agencies, as well as over 300,000 persons employed in the Government of Canada. These institutions carry out the programs and enforce the laws established by the Parliament of Canada.
Cabinet collective responsibility, also known as collective ministerial responsibility, is a constitutional convention in parliamentary systems and a cornerstone of the Westminster system system of government, that members of the cabinet must publicly support all governmental decisions made in Cabinet, even if they do not privately agree with them. This support includes voting for the government in the legislature. This convention formed in the 19th century in the United Kingdom. Some Communist political parties apply a similar convention of democratic centralism to their central committee.
Ministers in the New Zealand Government are members of Parliament (MPs) who hold ministerial warrants from the Crown to perform certain functions of government. This includes formulating and implementing policies and advising the governor-general. Ministers collectively make up the executive branch of the New Zealand state. The governor-general is obliged to follow the advice of the prime minister on the appointment and dismissal of ministers.
The Australian Government, also known as the Commonwealth Government, is the national government of Australia, a federal parliamentary constitutional monarchy. The government consists of the parliamentary members of the party or coalition that currently has the support of a majority of members of the House of Representatives and in some contexts also includes the departments and other executive bodies ministers oversee. The current government consists of Anthony Albanese and other Australian Labor Party parliamentarians, in place since the 2022 federal election.
The constitution of New Zealand is the sum of laws and principles that determine the political governance of New Zealand. Unlike many other nations, New Zealand has no single constitutional document. It is an uncodified constitution, sometimes referred to as an "unwritten constitution", although the New Zealand constitution is in fact an amalgamation of written and unwritten sources. The Constitution Act 1986 has a central role, alongside a collection of other statutes, orders in Council, letters patent, decisions of the courts, principles of the Treaty of Waitangi, and unwritten traditions and conventions. There is no technical difference between ordinary statutes and law considered "constitutional law"; no law is accorded higher status. In most cases the New Zealand Parliament can perform "constitutional reform" simply by passing acts of Parliament, and thus has the power to change or abolish elements of the constitution. There are some exceptions to this though – the Electoral Act 1993 requires certain provisions can only be amended following a referendum.
The governor-general of New Zealand is the representative of the monarch of New Zealand, currently King Charles III. As the King is concurrently the monarch of 14 other Commonwealth realms and lives in the United Kingdom, he, on the advice of his New Zealand prime minister, appoints a governor-general to carry out his constitutional and ceremonial duties within the Realm of New Zealand.
The Department of the Prime Minister and Cabinet (DPMC) is the central public service department of New Zealand charged with providing support and advice to the governor-general, the prime minister and members of the Cabinet of New Zealand. The department is also charged with centrally leading New Zealand's "national security planning, which includes civil defence."
The New Zealand Government is the central government through which political authority is exercised in New Zealand. As in most other parliamentary democracies, the term "Government" refers chiefly to the executive branch, and more specifically to the collective ministry directing the executive. Based on the principle of responsible government, it operates within the framework that "the [King] reigns, but the government rules, so long as it has the support of the House of Representatives". The Cabinet Manual describes the main laws, rules and conventions affecting the conduct and operation of the Government.
In Australian political and constitutional terminology, a caretaker government is a government of Australia from when the House of Representatives is dissolved by the Governor-General prior to a general election to a period after the election, until the next ministry is appointed. A caretaker government is expected to conduct itself in accordance with a series of well-defined conventions administered by the Department of the Prime Minister and Cabinet, but there is no law compelling the caretaker government to do so.
The Cabinet Manual is a government document in the United Kingdom which sets out the main laws, rules and conventions affecting the conduct and operation of the Government of the United Kingdom. It was written by the Civil Service, led by Cabinet Secretary Sir Gus O'Donnell, and was first published by the Cabinet Office on 14 December 2010. The manual gives an overview of the UK's system of government, reflecting the importance of Parliament, Cabinet government and the democratic nature of the UK's constitutional arrangements by explaining the powers of the Executive, Sovereign, Parliament, international institutions, the Crown Dependencies, British Overseas Territories and the devolved administrations in Northern Ireland, Scotland and Wales. The Manual was written as a guide for members of Cabinet, other ministers and civil servants in the execution of government business, but also serves to consolidate many of the previously unwritten constitutional conventions through which the British government operates.
In Malaysian political and constitutional terminology, a caretaker government is a government of Malaysia during a period that starts when the parliament is dissolved by the Yang di-Pertuan Agong prior to a general election, and continues for a period after the election, until the next cabinet is appointed. A caretaker government is expected to conduct itself in accordance with a series of well-defined conventions that are administered by the Prime Minister's Department, although there is no law compelling the caretaker government to do so.
The secretary of the Cabinet is a senior public servant in New Zealand. The Cabinet secretary usually serves concurrently as the clerk of the Executive Council. The secretary is responsible for the impartial recording of Cabinet decisions, and as clerk of the Executive Council they are also a liaison between the Cabinet and the governor-general. The secretary is also responsible to Cabinet as a collective for ensuring the confidentiality of Cabinet proceedings, and the impartial and effective operation of the Cabinet system. The current Cabinet Secretary and Clerk of the Executive Council is Rachel Hayward.
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