With having authority over foreign affairs, family registers (related to the family names), and the whole field of ceremonies, Jibu-sho also managed lawsuits over troubles related to the family names, engaged in several affairs and lawsuits relating to marriage and family registers, supervised monks and nuns and Buddhist rites, administered Gagaku (ancient Japanese court dance and music), watched imperial mausoleums, and entertained overseas envoys.
外事・戸籍（姓名関係）・儀礼全般を管轄し姓氏に関する訴訟や、結婚、戸籍関係の管理および訴訟、僧尼、仏事に対する監督、雅楽の監督、山陵の監督、および外国からの使節の接待などを職掌としていた。