Canon: 873: One sponsor, male or female, is sufficient, but there may be two, one of each sex.
Canon: 874: To be admitted to undertake the office of sponsor, a person must:
Be appointed by the candidate for baptism, or by the parents or whomever stands in their place, or failing these, by the pastor or the minister; to be appointed the person must be suitable for this role and have the intention of fulfilling it;
Be not less than sixteen years of age, unless a different age has been stipulated by the diocesan bishop, or unless the pastor or the minister considers that there is a just reason for an exception to be made;
Be a Catholic who has been confirmed and has received the Blessed Eucharist, and who lives a life of faith which befits the role to be undertaken;
Not labor under a canonical penalty, whether imposed or declared;
Not be either the father or the mother of the person to be baptized.