Rerum Ecclesiae §33

³³ Therefore, since the Divine Pastor shall demand of Us an accounting of His Flock, We, without hesitation and whenever it shall appear to be either necessary, more opportune, or useful for the larger growth of the Catholic Church, shall transfer the mission territory of one Institute to another Institute; We shall also divide and subdivide a mission territory and shall confide it to the care of native priests or shall assign new Vicariates and new Apostolic Prefectures of other religious Congregations than those occupying the original territory.