Constitution of Japan
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| Constitution of Japan | |
|---|---|
 Preamble of the Constitution | |
| Original title | 日本国憲法 |
| Jurisdiction | Japan |
| Date effective | 3 May 1947 |
| System | Unitary parliamentary de facto[1] constitutional monarchy |
| Branches | Three |
| Head of state | Not defined in constitution.[2] The Emperor is "the symbol of the State and of the unity of the people", but can carry out many functions of a head of state.[1] |
| Chambers | Bicameral (National Diet: House of Representatives, House of Councillors) |
| Executive | Cabinet, headed by the Prime Minister |
| Judiciary | Supreme Court |
| Federalism | Unitary |
| Electoral college | No |
| First legislature | 20 April 1947 (HC) 25 April 1947 (HR) |
| First executive | 24 May 1947 |
| First court | 4 August 1947 |
| Amendments | 0[3] |
| Location | National Archives of Japan |
| Author(s) | Allied GHQ and members of the Imperial Diet |
| Signatories | Emperor Shōwa |
| Supersedes | Meiji Constitution |
 Constitution of Japan at Wikisource | |
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 Japan portal
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