For a child to be baptised in the Catholic Church, either the mother or the father must be a baptised member of the Roman Catholic Church. There has to be a reasonable expectation that the child will be brought up in the practice of the Catholic faith. Frequent attendance at Mass by one or both parents is usually accepted as sufficient evidence of Catholic practice. Parents or prospective parents should therefore make sure they are known to the priest a few months before the intended date of baptism. Sacramental preparation is by the parents is required – one or two evening session is the norm. There must be at least one Godparent who is a practising, baptised, Catholic, who has received the Sacrament of Confirmation, and is over the age of 16. A brother or sister is not normally accepted as a godparent to a child.