Vatican to Publish New Document on Marian ApparitionsNext Week
"The Catholic Church calls for “great prudence” in examining the facts related to presumed apparitions of revelations. According to the 1978 norms, it is the Church’s responsibility to first judge the facts before permitting public devotion in the case of an alleged apparition.
Under Pope John Paul II, the Vatican Congregation for Divine Worship and the Discipline of the Sacraments issued a lengthy document on popular piety in 2001 that reiterated the Church’s teaching that private revelations do not belong to the deposit of faith."
https://www.ncregister.com/cna/marian-apparitions-new-vatican-document
Additionally, in a less pontifical rendering:
Vatican preparing 'guidelines' for 'apparitions", "other supernatural phenomena"
https://www.foxnews.com/faith-values/vatican-preparing-guidelines-apparitions-supernatural-phenomena