Apostolic vicariate
An apostolic vicariate is a form of territorial jurisdiction of the Roman Catholic Church established in missionary regions and countries where a diocese has not yet been established. It is essentially provisional, though it may last for a century or more. The hope is that the region will generate sufficient numbers of Catholics for the Church to create a diocese. In turn, the status of Apsotolic vicariate is often a promotion for a former apostolic prefecture, while either may have started out as a mission sui iuris.
Institution
An apostolic vicariate is led by a vicar apostolic who is usually a titular bishop. While such a territory can be classed as a particular church, according to canon 371.1 of the Latin Code of Canon Law, a vicar apostolic's jurisdiction is an exercise of the jurisdiction of the Pope — the territory thus comes directly under the pope as "universal bishop", and the pope exercises this authority through a “vicar”. This is unlike the jurisdiction of a diocesan bishop, whose jurisdiction derives directly from his office.
