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Official Residence

The Cabinet system organized by Prime Minister and the Ministers was adopted in 1885 in the replacement of the Dajokan (Grand Council of State) system, which had been in place until then.

The reference to the Cabinet Secretariat as the supplementary department and bureau of the Cabinet goes back to 1924 when the Cabinet Office-Affiliated Departments and Bureaus and Personnel System was established. At the time, its primary role was to be in charge of matters concerning the promulgation of Imperial edicts, Imperial rescript, laws and orders, etc. The Cabinet Law went into force in 1947 with the enforcement of the new Constitution, thereby establishing the current Cabinet system. Under the Cabinet system, the tripartite separation of powers was clarified and established the Cabinet as the primary administrative power under the framework of the parliamentary Cabinet system. The Cabinet Secretariat provides direct support to the Cabinet.


Former Prime Minister's Official Residence