House of Councillors (Japan)

House of Councillors (Japan). The House of Councillors is the upper house of the National Diet, Japan's bicameral legislature. Established by the Constitution of Japan in 1947, it replaced the pre-war House of Peers and was designed to provide a more deliberative counterbalance to the House of Representatives. While possessing lesser constitutional authority than the lower house, it plays a crucial role in reviewing legislation, conducting political oversight, and representing broader regional and proportional interests.

History

The chamber was created during the Occupation of Japan under the guidance of SCAP, led by Douglas MacArthur, as part of democratic reforms to replace the imperial House of Peers of the Empire of Japan. Its first election was held in 1947 following the promulgation of the new Constitution of Japan. Throughout the post-war period, it has been dominated by the Liberal Democratic Party (LDP), though opposition parties like the JCP and the Japan Socialist Party have held significant influence during various eras, such as the 1989 election which saw a major LDP setback. Key historical events involving the chamber include the contentious ratification of the U.S.-Japan Security Treaty in 1960 and its role during periods of divided Diet.

Composition and election

The House of Councillors consists of 248 members who serve six-year terms, with elections for half the membership held every three years. Members must be at least 30 years of age. Elections utilize a parallel voting system: 148 members are elected from 45 prefectural districts via the Single non-transferable vote, while 100 are elected through a nationwide party-list proportional representation bloc. This system ensures representation for both geographic constituencies and broader party platforms, with notable minor parties like Reiwa Shinsengumi and the NHK Party occasionally winning seats in the proportional block. Vacancies, such as those caused by resignation or death, are filled through by-elections or the next general election.

Powers and functions

While the House of Representatives holds primacy in most legislative matters, including votes of confidence and budget approval, the House of Councillors possesses significant powers. It can delay or amend bills passed by the lower house, and its consent is required for treaties, the nomination of the Chief Justice of the Supreme Court of Japan, and the selection of members of the Board of Audit. In cases of legislative disagreement, the lower house can override the House of Councillors with a two-thirds majority, a mechanism used during debates over legislation such as the 2015 Act on the Protection of Specially Designated Secrets. The chamber also conducts extensive investigations and interpellations of the Cabinet, notably during sessions following events like the Fukushima Daiichi nuclear disaster.

Leadership and organization

The presiding officer is the President, elected from among its members, a position held by Hidehisa Otsuji of the LDP since 2022. The Vice President, Hiroyuki Nagahama of the CDP, assumes duties in the President's absence. The chamber operates through a system of standing committees, such as the Committee on Cabinet and the Committee on Audit, which scrutinize government policy. Political negotiation and management of the legislative calendar are handled by the Committee on Rules and Administration. The internal affairs of the House are managed by the Secretary-General and other officers, with support from the National Diet Library.

Current composition and recent elections

Following the 2022 Japanese House of Councillors election, the governing coalition of the LDP and Komeito holds 146 seats, securing a stable majority. The largest opposition bloc is the Constitutional Democratic Party (CDP) with 39 seats, followed by Nippon Ishin no Kai with 21. Notable smaller parties include Reiwa Shinsengumi and the NHK Party. The election was marked by issues including Abenomics, responses to the COVID-19 pandemic in Japan, and constitutional revision. The next scheduled election is for half the seats in 2025, which will test the coalition's strength against opposition forces like the CDP and JCP.

Category:National Diet Category:Upper houses