Title XIII: Of Feast Days

§ 1. Feast days under precept in the universal Church are only: all and each Sunday, the feasts of the Nativity, Circumcision, Epiphany, Ascension, and Most Holy Body of Christ, the Immaculate Conception and Assumption of Mary the nourishing Mother of God, Saint Joseph her spouse, the Blessed Apostles Peter and Paul, and finally All Saints.

§ 2. Feast days of Patrons are not subject to ecclesiastical precept; however local Ordinaries can transfer the external solemnity to the next following Sunday.

§ 3. If somewhere some feast from those enumerated has legitimately been abolished or transferred, let nothing be innovated without the Apostolic See having been consulted.

On feast days of precept Mass is to be heard; and one is to abstain from servile works, forensic acts, and likewise, unless legitimate customs or peculiar indults bear otherwise, from public trade, markets, and other public buyings and sellings.

One satisfies the law of hearing the Sacred rite who is present at Mass in whatever Catholic rite it is celebrated, under the open sky or in any church or public or semi-public oratory and in private cemetery chapels of which in can. 1190, but not in other private oratories, unless this privilege has been granted by the Apostolic See.