Can. 879 - The sacrament of confirmation impresses a character and by it the baptized, continuing on the path of Christian initiation, are enriched by the gift of the Holy Spirit and bound more perfectly to the Church; it strengthens them and obliges them more firmly to be witnesses to Christ by word and deed and to spread and defend the faith.

Can. 880 - §1. The sacrament of confirmation is conferred through the anointing with chrism on the forehead, which is done by the imposition of the hand, and through the words prescribed in the approved liturgical books.
§2. The chrism to be used in the sacrament of confirmation must be consecrated by a bishop, even if the sacrament is administered by a presbyter.

Can. 889 - §1. All baptized persons who have not been confirmed and only they are capable of receiving confirmation.

Can. 892 - As far as possible a sponsor for the one to be confirmed should be present; it is for the sponsor to see that the confirmed person acts as a true witness to Christ and faithfully fulfills the obligations connected with this sacrament.

Can. 893 - §1. To perform the role of sponsor, it is necessary that a person fulfill the conditions mentioned in can. 874 (See notes on this at Baptism section).
§2. It is desirable that the one who undertook the role of sponsor at baptism be sponsor for confirmation.