Canon 775. §1 While observing provisions made by the Apostolic See it is the responsibility of diocesan Bishops to issue norms concerning catechetical matters; to ensure that appropriate means of catechesis are available, even by preparing a catechism, if this seems opportune; to foster and to coordinate catechetical initiatives.

§2 If it seems useful, it is for the conference of bishops to take care that catechisms are issued for its territory, with the previous confirmation of the Apostolic See.
[revised wording according to m.p. Competentias quasdam decernere, 11.II.2022]

§3 The Episcopal Conference may establish a catechetical office, whose principal purpose is to assist individual dioceses in catechetical matters.

§1. Servatis praescriptis ab Apostolica Sede latis, Episcopi dioecesani est normas de re catechetica edicere itemque prospicere ut apta catechesis instrumenta praesto sint, catechismum etiam parando, si opportunum id videatur, necnon incepta catechetica fovere atque coordinare.

§2. Episcoporum conferentiae est, si utile videatur, curare, ut catechismi pro suo territorio, praevia Sedis Apostolicae confirmatione, edantur.

§3. Apud Episcoporum conferentiam institui potest officium catecheticum, cuius praecipuum munus sit singulis dioecesibus in re catechetica auxilium praebere.