CANON 12: OF DIOCESAN BISHOPS TEMPORARILY INCAPACITATED
Appointment of Vicar-General by Bishop
1 In the event of a Diocesan Bishop being temporarily incapacitated from fulfilling the duties of his office and administering his Diocese, while remaining within the Diocese, it shall be competent for him to appoint under his hand and seal a Vicar General with authority to administer the Spiritualities of the Diocese, and to maintain discipline according to the Canons of the Church, provided that such action shall be reported to the Metropolitan.
Appointment of Vicar-General by Metropolitan
2 Should it happen that a Diocesan Bishop is unable to appoint a Vicar General in terms of this Canon, the Metropolitan in consultation with the Chapter or Senate of the Diocese, or where there is no Chapter or Senate, with the three senior priests, shall appoint a Vicar General.