Unlike in Tang Dynasty, however, highly systemized control systems among officials were not formed, and there existed honkan, who had independent authorities in spite of being under each ministry, and Ryoge no kan, which was newly established outside the framework of the ritsuryo system.
ただし、唐のような高度に体系化された官司間の統属関係は形成されず、一応は各省の下にあるものの独立した権限を有した品官や律令制の枠外に新たに設置された令外官などが存在した。