. . "A mission sui iuris, or in Latin missio sui iuris, also known as an independent mission, is a rare type of Roman Catholic missionary pseudo-diocesan jurisdiction, ranking below an apostolic prefecture, in an area with very few Catholics, often desolate or remote.The clerical head is styled Ecclesiastical Superior; he can be a regular cleric, bishop, archbishop or even a cardinal, but if of high rank often resides elsewhere (notably, in another diocese or the Vatican) in chief of his primary office.It can either be exempt (i.e. "@en .