The Canon 1399 forbade by right the publication of certain books such as those that deal with revelations, visions, prophecies and miracles. This Canon has been repealed. This means that as far as these publications are concerned, the prohibition is lifted as to their being bound by ecclesiastical law. There is hence no longer any prohibition concerning the narrative of seers, be they recognized or not by Ecclesiastical Authority. However, they are not subject to any ecclesiastical discipline, not even for their pubic prayers.
Permission is required only for the celebration of Holy Mass or any other religious service.
Canon 2318 carried penalties against those who violated the laws of censure and prohibition. This Canon is abrogated since 1966. None can incur ecclesiastical censure for frequenting places of Apparitions even those not recognized by the Ordinaries of dioceses or by the Holy Father.