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.
Priest
In these traditions, only men who meet certain requirements may become priests. In Roman Catholicism the canonical minimum age is twenty-five. Bishops may dispense with this rule and ordain men up to one year younger. Dispensations of more than a year are reserved to the Holy See (Can. 1031 §§1, 4.) A Catholic priest must be incardinated by his bishop or his major religious superior in order to engage in public ministry. In Orthodoxy, the normal minimum age is thirty (Can. 9 of Neocaesarea) but a bishop may dispense with this if needed. In neither tradition may priests marry after ordination. In the Roman Catholic Church, priests in the Latin Rite, which covers the vast majority of Roman Catholicism, must be celibate except under special rules for married clergy converting from certain other Christian confessions. Married men may become priests in Eastern Orthodoxy and the Eastern Catholic Churches, but in neither case may they marry after ordination, even if they become widowed. Candidates for bishop are chosen only from among the celibate. Orthodox priests will either wear a clerical collar similar to the above mentioned, or simply a very loose black robe that does not have a collar.