Canon 621

1. The synod of bishops of the patriarchal Church or the council of hierarchs is competent to issue norms on catechetical formation, arranged in a catechetical directory, within the territorial boundaries of their own Church; they are to observe those

things prescribed by the supreme authority of the Church. 2.

In this directory the special character of the Eastern Churches

is to be taken into account, so that the biblical and liturgical

emphasis as well as the traditions of each Church sui iuris in

patrology, hagiography, and even iconography are highlighted in

conveying the catechesis. 3. Synods of bishops of the patriarchal Church or councils of hierarchs are to see to it that catechisms suited to various groups of faithful are prepared along

with corresponding aids and means, and that the different catechetical initiatives are promoted and harmonized among themselves.