Part II, Article 13. Necessary Selection and Adequate Formation
Should it become necessary to provide for "supplementary" assistance in
any of the cases mentioned above, the competent Authority is bound to
select lay faithful of sound doctrine and exemplary moral life.
Catholics who do not live worthy lives or who do not enjoy good
reputations or whose family situations do not conform to the teaching of
the Church may not be admitted to the exercise of such functions. In
addition, those chosen should possess that level of formation necessary
for the discharge of the responsibilities entrusted to them.
In accordance with the norms of particular law, they should perfect
their knowledge particularly by attending, in so far as possible, those
formation courses organized for them by the competent ecclesiastical
Authority in the particular Churches,  (in environments other than
that of the Seminary, as this is reserved solely for those preparing for
the priest hood).  Great care must be exercised so that these
courses conform absolutely to the teaching of the ecclesiastical
magisterium and they must be imbued with a true spirituality.