House of Representatives (Japan) in the context of "Local Autonomy Act"

The Government of Japan is the central government of Japan. It consists of legislative, executive and judiciary branches and functions under the framework established by the Constitution of Japan. Japan is a unitary state, containing forty-seven administrative divisions, with the emperor as its head of state. His role is ceremonial and he has no powers related to the Government. Instead, it is the Cabinet, comprising the prime minister and the ministers of state, that directs and controls the government and the civil service. The Cabinet has the executive power and is formed by the prime minister, who is the head of government. The Prime Minister is nominated by the National Diet and appointed to office by the Emperor. The current cabinet is the Takaichi Cabinet, which is led by prime minister Sanae Takaichi, who assumed office on 21 October 2025. The country has had a Liberal Democratic minority government since 2025.

The National Diet is the legislature, the organ of the Legislative branch. The Diet is bicameral, consisting of two houses with the House of Councilors being the upper house, and the House of Representatives being the lower house. The members of both houses of the Diet are directly elected by the people, who are the source of sovereignty. The Diet is defined as the supreme organ of sovereignty in the Constitution. The Supreme Court and other lower courts make up the Judicial branch and have all the judicial powers in the state. The Supreme Court has ultimate judicial authority to interpret the constitution and the power of judicial review. The judicial branch is independent from the executive and the legislative branches. Judges are nominated or appointed by the Cabinet and never removed by the executive or the legislature except during impeachment.

The National Diet Building (国会議事堂, Kokkai-gijidō) is the building where both houses of the National Diet of Japan meet. It is located at Nagatachō 1-chome 7–1, Chiyoda, Tokyo.

Sessions of the House of Representatives take place in the south wing and sessions of the House of Councillors in the north wing.

A parliament is the type of legislature, or law-making body, of a state based on the fusion of powers. Generally, a parliament has three functions: representing the electorate, making laws, and overseeing the executive government via hearings and inquiries. Its role is similar to that of a senate, synod or congress. The term parliament is commonly used in countries that are current or former monarchies. Some contexts restrict the use of the word to parliamentary systems, although it is also used to describe the legislature in some presidential systems (e.g., the Parliament of Ghana), even where it is not in the official name. A parliament is typically made up of elected members, who are legislators.

Historically, parliaments included various kinds of deliberative, consultative, and judicial assemblies. Parliamentary gatherings in the Middle Ages began to establish that monarchs were subject to law and first summoned representatives of common people, notably the Cortes of León in 1188 and an English parliament in 1265. During the early modern period, the Glorious Revolution of 1688 in Britain established the primacy of parliamentary sovereignty, through which the rule of law could be enforced. Many other modern concepts of parliamentary government developed subsequently in the Kingdom of Great Britain (1707–1800). Expansion of suffrage in the 19th and 20th centuries led to parliaments around the world becoming democratically elected.

The prime minister of Japan (内閣総理大臣, Naikaku Sōri Daijin; Japanese pronunciation: [naꜜi.ka.kɯ | soː.ɾʲi daꜜi.dʑiɴ]) is the head of government of Japan. The prime minister chairs the Cabinet of Japan and has the ability to select and dismiss its ministers of state. The prime minister also serves as the commander-in-chief of the Japan Self Defence Forces. The incumbent prime minister, Sanae Takaichi, took office on 21 October 2025; she is the first woman to serve as either president of the Liberal Democratic Party or prime minister.

The National Diet (parliament) nominates the prime minister from among its members (typically from among the members of the House of Representatives). They are then formally appointed by the emperor. The prime minister must retain the confidence of the House of Representatives to remain in office. The prime minister lives and works at the Naikaku Sōri Daijin Kantei (Prime Minister's Official Residence) in Nagatachō, Chiyoda, Tokyo, close to the National Diet Building.

The National Diet (国会, Kokkai; Japanese pronunciation: [kok̚.kai]) is the national legislature of Japan. It is composed of a lower house, called the House of Representatives (衆議院, Shūgiin), and an upper house, the House of Councillors (参議院, Sangiin). Both houses are directly elected under a parallel voting system. In addition to passing laws, the Diet is formally responsible for nominating the prime minister. The Diet was first established as the Imperial Diet in 1890 under the Meiji Constitution, and took its current form in 1947 upon the adoption of the post-war constitution. Both houses meet in the National Diet Building (国会議事堂, Kokkai-gijidō) in Nagatachō, Chiyoda, Tokyo.

Sanae Takaichi (born 7 March 1961) is a Japanese politician who is serving as Prime Minister of Japan and President of the Liberal Democratic Party since 2025. She is the first woman to hold either of these positions. A member of the House of Representatives from 1993 to 2003 and since 2005, she also held several ministerial posts during the premierships of Shinzo Abe and Fumio Kishida.

Born and raised in Nara Prefecture, Takaichi graduated from Kobe University and worked as an author, legislative aide, and broadcaster before beginning her political career. Elected as an independent to the House of Representatives in the 1993 general election, she joined the Liberal Democratic Party (LDP) in 1996. A protégé of Prime Minister Abe, she held various positions during Abe's premiership, most notably as Minister for Internal Affairs and Communications. She was a candidate in the 2021 LDP leadership election, but was eliminated before the runoff, placing third. From 2022 to 2024, during Fumio Kishida's premiership, she served as the Minister of State for Economic Security.

35°40′35.5″N 139°44′40.5″E / 35.676528°N 139.744583°E / 35.676528; 139.744583

The House of Councillors (参議院, Sangiin; Japanese pronunciation: [saŋʲ.ɡʲiꜜ.iɴ, -ŋʲiꜜ-]) is the upper house of the National Diet of Japan. The House of Representatives is the lower house. The House of Councillors is the successor to the pre-war House of Peers. If the two houses disagree on matters of the budget, treaties, or the nomination of the prime minister, the House of Representatives can insist on its decision. In other decisions, the House of Representatives can override a vote of the House of Councillors only by a two-thirds majority of members present.