Government

Government#

parliamentary constitutional monarchy

System

parliamentary constitutional monarchy

Capital

Tokyo

Head of state

Emperor NARUHITO (since 1 May 2019)

Head of government

Prime Minister Sanae TAKAICHI (since 21 October 2025)

Legislature

legislature name: National Diet (Kokkai); legislative structure: bicameral

Judiciary

highest court(s): Supreme Court or Saiko saibansho (consists of the chief justice and 14 associate justices); judge selection and term of office: Supreme Court chief justice designated by the Cabinet and appointed by the monarch; associate justices appointed by the Cabinet and confirmed by the monarch; all justices are reviewed in a popular referendum during the first general election of the House of Representatives after each judge’s appointment and every 10 years afterward; subordinate courts: 8 High Courts (Koto-saiban-sho), each with a Family Court (Katei-saiban-sho); 50 District Courts (Chiho saibansho), with 203 additional branches; 438 Summary Courts (Kani saibansho)

Constitution

history: previous 1890; latest approved 6 October 1946, adopted 3 November 1946, effective 3 May 1947; amendment process: proposed by the Diet; passage requires approval by at least two-thirds majority of both houses of the Diet and approval by majority in a referendum

Independence

3 May 1947 (current constitution adopted as amendment to Meiji Constitution); notable earlier dates: 11 February 660 B.C.

Administrative divisions

47 prefectures; Aichi, Akita, Aomori, Chiba, Ehime, Fukui, Fukuoka, Fukushima, Gifu, Gunma, Hiroshima, Hokkaido, Hyogo, Ibaraki, Ishikawa, Iwate, Kagawa, Kagoshima, Kanagawa, Kochi, Kumamoto, Kyoto, Mie, Miyagi, Miyazaki, Nagano, Nagasaki, Nara, Niigata, Oita, Okayama, Okinawa, Osaka, Saga, Saitama, Shiga, Shimane, Shizuoka, Tochigi, Tokushima, Tokyo, Tottori, Toyama, Wakayama, Yamagata, Yamaguchi, Yamanashi

Departments#

TODO. Ministries and authoritative sites, to be filled out.

Hierarchy#

How power is wired. The diagram below carries the generic template; refine the boxes and edges to match the current regime.

        flowchart TD
  HoS["Head of State"]
  HoG["Head of Government"]
  Leg["Legislature"]
  Jud["Judiciary"]
  Cab["Cabinet"]
  Foreign["Foreign Affairs"]
  Interior["Interior"]
  Defense["Defense"]
  Finance["Finance"]
  Justice["Justice"]

  HoS --> HoG
  HoG --> Cab
  Cab --> Foreign
  Cab --> Interior
  Cab --> Defense
  Cab --> Finance
  Cab --> Justice
  HoS -.- Leg
  HoS -.- Jud

Resources#

Public-facing portals the people use day to day. Operators monitor these for policy changes, official notices, and civil-registry data.

Resource

Site

Purpose

National portal

to be filled

One-stop government services for citizens.

Tax / revenue

to be filled

Income tax, VAT, customs.

Civil registry

to be filled

Births, deaths, marriages, national ID.

Immigration

to be filled

Visas, residency, naturalisation.

Health

to be filled

Public health, advisories, vaccination records.

Education

to be filled

Curricula, school directories, transcripts.

Statistics

to be filled

Census, economic indicators, opendata.

Police / emergency

to be filled

Reporting, missing persons, emergency contacts.
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