Personal ordinariate
If membership by reception of the sacraments of initiation within an ordinariate is open not only to the Catholics mentioned in the 2013 amendment but to others also who have no Anglican background - something on which no express statement has been issued - anyone who has not yet received all three sacraments of initiation may join. This includes non-Christians, those who, in the view of the Catholic Church, do not have valid baptism (such as Mormons), and those who, again in the view of the Catholic Church, have valid baptism but not valid confirmation or Eucharist. Protestants in general are seen as lacking valid confirmation, but the Eastern churches and some Western ones, such as some Old Catholic churches and the Polish National Catholic Church, are recognized as having valid sacraments.
Catholic catechesis
Catechists are often deployed to teach candidates who are preparing for the sacraments of Reconciliation, First Holy Communion, Confirmation and Baptism (after completing the Rite of Christian Initiation of Adults, or RCIA). Various age-appropriate religious education texts and materials are used for instruction in addition to the "Catechism of the Catholic Church".