When is the sacrament of confirmation performed and by whom?

Confirmation is a holy sacrament, it is performed or received after you have been baptized When you are baptized, you receive the Holy Ghost and the sacrament of Confirmation validates, or confirms the strenght received by the baptism. There must be a preparation course (spiritual) to receive the Confirmation, it must be received in a state of "grace" (after a confession) and it must be performed by a Bishop. The Roman Catholics receive the Confirmation between the ages of 12 and 17.