[ebb tide]

Determining the veracity of an apparition falls to the local bishop, and the Vatican’s doctrinal congregation established the norms to guide the process.

Vatican publishes rules for verifying Marian apparitions

I recommend that you to read the above article.

[Chicory]

From your article: Determining the veracity of an apparition falls to the local bishop, and the Vatican’s doctrinal congregation established the norms to guide the process.