Unlike other tsukasa, Okimi no Tsukasa was never abolished or merged; rather 'betto' (chief officer) was ranked above 'kami' (equivalent to Shorokuinojo [Senior Sixth Rank, Upper Grade]) within the institution.
司であるにもかかわらず他の司のように統廃合されることがなく､逆に別当が正の上に置かれた。