Catechism of the Catholic Church §1572 — excerpt
Given the importance that the ordination of a bishop, a priest, or a deacon has for the life of the particular Church, its celebration calls for as many of the faithful as possible to take part.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.