Confirmation is also a Christian religious ceremony or rite in which a baptised person reaffirms his faith after instruction in the doctrines of his church. In most Western churches where Confirmation is considered a sacrament or a sacramental, the usual age of the confirmand is between 11 and 16, at which time he is considered capable of making a mature decision concerning the faith. In Eastern Christianity, however, Confirmation (called Chrismation) follows soon after the reception of infant baptism.
- Sacraments in the Roman Catholic Church
-  US Senate Reference