It is the responsibility of the metropolitan, with the consent of the majority of the suffragan bishops, to call a provincial council, decide where to convene it, and determine the agenda. It is his prerogative to preside over the provincial council. No provincial council can be called if the metropolitan see is vacant. The Metropolitans of a given territory are also involved in the selection of bishops. Every three years, they compile a list of promovendis - a list of priests who may be suitable for the office of bishop. This is forwarded to the local Apostolic Nuncio, who evaluates the candidates in a consultative and confidential process. The Nuncio in turn forwards the best candidates to the Congregation for Bishops in Rome, who conduct a final evaluation of candidates and offer their findings to the Pope for his final decision of appointment. Eastern Catholic Within patriarchal or major archiepiscopal churches In those Eastern Catholic Churches that are headed by a patriarch, metropolitans in charge of ecclesiastical provinces hold a position similar to that of metropolitans in the Latin Church. Among the differences is that Eastern Catholic metropolitans within the territory of the patriarchate are to be ordained and enthroned by the patriarch, who may also ordain and enthrone metropolitans of sees outside that territory that are part of his Church. Similarly, a metropolitan has the right to ordain and enthrone the bishops of his province. The metropolitan is to be commemorated in the liturgies celebrated within his province. A major archbishop is defined as the metropolitan of a certain see who heads an autonomous Eastern Church not of patriarchal rank. The canon law of such a Church differs only slightly from that regarding a patriarchal Church. Within major archiepiscopal churches, there may be ecclesiastical provinces headed by metropolitan bishops. As heads of their own particular churches There are also autonomous Eastern Catholic Churches consisting of a single province and headed by a metropolitan. Metropolitans of this kind are to obtain the pallium from the Pope as a sign of his metropolitan authority and of his Church's full communion with the Pope, and only after his investment with it can he convoke the Council of Hierarchs and ordain the bishops of his autonomous Church. In his autonomous Church it is for him to ordain and enthrone bishops and his name is to be mentioned immediately after that of the Pope