The libraries in the executive and judicial agencies, or the executive branches of the Japanese Government and the Supreme Court of Japan, will be explained in detail in the section covering the services to the Executive and Judicial agencies of the government; moreover, by designating libraries affiliated to the executive agencies and courts as branches of the NDL in a system, the NDL, as the only national main library in Japan, and other libraries mentioned above have been integrated within a single network.
行政および司法の各部門、すなわち日本の行政機関および最高裁判所に置かれる図書館については行政・司法に対するサービスで改めて詳しくあつかうが、各省庁や裁判所に置かれる付属図書館を制度上国立国会図書館の支部とすることで、日本唯一の国立中央図書館である国立国会図書館と各図書館を一体のネットワークに置いたものである。