Catechism of the Catholic Church §1482 — excerpt
The sacrament of Penance can also take place in the framework of a communal celebration in which we prepare ourselves together for confession and give thanks together for the forgiveness received.
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.
Also cites: SC 26-27