Confirmation Sponsors

What are the requirements for being a confirmation sponsor?
The norms are identical to those for a godparent in a Catholic baptism.
According to the Code of Canon Law:

Can. 872 Insofar as possible, a person to be baptized is to be given a sponsor who assists an adult in Christian initiation or together with the parents presents an infant for baptism. A sponsor also helps the baptized person to lead a Christian life in keeping with baptism and to fulfill faithfully the obligations inherent in it.

Can. 873 There is to be only one male sponsor or one female sponsor or one of each.

Can. 874 §1. To be permitted to take on the function of sponsor a person must:

1. be designated by the one to be baptized, by the parents or the person who takes their place, or in their absence by the pastor or minister and have the aptitude and intention of fulfilling this function;
2. have completed the sixteenth year of age, unless the diocesan bishop has established another age, or the pastor or minister has granted an exception for a just cause;
3. be a Catholic who has been confirmed and has already received the most holy sacrament of the Eucharist and who leads a life of faith in keeping with the function to be taken on;
4. not be bound by any canonical penalty legitimately imposed or declared;
5. not be the father or mother of the one to be baptized.

§2. A baptized person who belongs to a non-Catholic ecclesial community is not to participate except together with a Catholic sponsor and then only as a witness of the baptism.

Canon 893 also adds that "It is desirable to choose as sponsor the one who undertook the same function in baptism" —i.e., has served as godparent. This is not a requirement, but expresses more clearly the link between Baptism and Confirmation and also makes the function and responsibility of the sponsor more effective.

Should I be a Confirmation sponsor?
www.cuf.org/faithfacts/details_view.asp?ffID=271

Godparents and Sponsors - What Is Expected of Them Today?
Have you ever wondered why some people have very involved godparents and sponsors, while others don't even know theirs? Perhaps part of the problem is that many godparents and sponsors were chosen for the wrong reasons, or because those same people don't really know what they're supposed to do! Do you?
www.americancatholic.org/Newsletters/CU/ac0497.asp

Can a step parent serve as a Confirmation sponsor?
An opinion concerning Canon Law