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.
Personal ordinariate
Latin Rite priests can receive Orthodox Christians, who then belong not to the Latin Church but to the respective Eastern Catholic particular church. To be ascribed to the Latin Church (e.g. if the person intended to join the ordinariate), or to an Eastern Catholic church "sui iuris" other than the one of the same rite as the non-Catholic Eastern church from which the Christian arrives, permission of the Apostolic See may be necessary, although it may also occur with the permission of the respective Eastern and Latin ordinaries who have jurisdiction. Priests of a personal ordinariate are not excluded from this authority: "Anyone who is not already a Catholic can be received into the Catholic Church through the Ordinariate."