Roman Church (Praedicate Evangelium, Article 12). Each Curial Institution is composed of a Prefect or equivalent, a suitable number of Members, one or more Secretaries who assist the Prefect, together with, but in a subordinate line, one or more Under-secretaries, who are flanked by various Officials and Consultors (Praedicate Evangelium, Article 13). The Members of the Curial Institutions are appointed from among the Cardinals residing both in and outside Rome, to whom are added, in as much as they are particularly expert in the matters in question, some Bishops, especially diocesan/eparchial ones, as well as, according to the nature of the Dicastery, some priests and deacons, some members of Institutes of Consecrated Life and Societies of Apostolic Life and some lay faithful (Praedicate Evangelium, Article 15). The Prefect, or his equivalent, the Members, the Secretary, the Undersecretary and the other Major Officials assigned to Heads of Office, equivalents and experts, as well as the Consultors, are appointed by the Roman Pontiff for a five-year term. As a rule, after five years, clerical officials and members of Institutes of Consecrated Life and Societies of Apostolic Life who have served in curial institutions and offices return to pastoral care in their diocese/parish or in the Institutes or Societies to which they belong. Should the Superiors of the Roman Curia deem it opportune, the service may be extended for another period of five years (Praedicate Evangelium, Article 17). In the event of the Apostolic See becoming vacant, all the Heads of Curial Institutions and Members cease to hold office. Exceptions to this rule are the Major Penitentiary, who continues to carry out the ordinary business within his competence, proposing to the College of Cardinals those matters which he would report to the Roman Pontiff, and the Almoner of His Holiness, who continues in the exercise of works of charity according to the same criteria used during the pontificate, remaining in the employ of the College of Cardinals until the election of the new Roman Pontiff. During the vacancy of the See, the Secretaries are responsible for the ordinary government of curial institutions, taking care only of matters of ordinary administration. Within three months of the election of the Roman Pontiff they are to be confirmed in their office by him. The Master of Papal Liturgical Celebrations assumes the duties provided for in the norms concerning the vacancy of the Apostolic See and the