a Cardinal or Prelate, presides, participates or assists, and to direct them in accordance with the liturgical prescriptions in force, preparing all that is necessary or useful for their worthy conduct and for the active participation of the faithful. The Office shall also take care of the preparation and conduct of all the papal liturgical celebrations taking place during the pastoral visits of the Roman Pontiff on his apostolic journeys. The Office is headed by the Master of Papal Liturgical Celebrations, appointed for five years by the Roman Pontiff. He is assisted in sacred celebrations by the Pontifical Masters of Ceremonies, appointed for five years by the Roman Pontiff. The Master of Papal Liturgical Celebrations is also responsible for the Papal Sacristy and the Chapels of the Apostolic Palace. The current Master of Papal Liturgical Celebrations is Monsignor Diego Giovanni Ravelli. Pontifical Musical Chorus of the Sistine Chapel The Pontifical Musical Chorus of the Sistine Chapel is responsible for the task of guiding all the liturgical, pastoral, spiritual, artistic and educational activities and areas of the same Chapel, which is included in the Office as a specific place of service to the papal liturgical functions and at the same time for the custody and promotion of the prestigious artistic-musical heritage produced over the centuries by the Chapel itself for the solemn liturgies of the Popes. The Head of Pontifical Musical Chorus of the Sistine Chapel is the ex officio Master of Papal Liturgical Celebrations. Apostolic Camera The Cardinal Camerlengo of Holy Roman Church carries out the functions assigned to him by the special law concerning the vacant Apostolic See and the election of the Roman Pontiff. The Cardinal Camerlengo of Holy Roman Church and the Vice Camerlengo are appointed by the Roman Pontiff. The task of caring for and administering the goods and temporal rights of the Apostolic See during the time it is vacant is entrusted to the Cardinal Camerlengo of Holy Roman Church. Should he be impeded, the function will be assumed by the Vice Camerlengo. When the Apostolic See is vacant, it is the right and duty of the Cardinal Camerlengo of Holy Roman Church: to request from all the Administrations dependent on the Holy See reports on their patrimonial and economic status, as well as information on extraordinary affairs in progress; to request from the Council for the Economy the preventive and consolidated budgets from the