I. Concerning Sundays and Feasts up to now Affixed to Sundays

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1. Sundays exclude the perpetual assignment of any Feast whatever; therefore Feasts both of the universal Church and proper to some place, which up to now have been assigned to Sundays, are to be celebrated on the fixed day of the month on which they are inscribed in the Martyrology, if this is had; otherwise, on the first day on which the Sunday can occur on which up to now they have been celebrated. Nevertheless the following are excepted: a) The Feast of the Most Holy Trinity, which remains assigned to the first Sunday after Pentecost. b) The Feast of the Most Holy Name of Jesus, which will be celebrated by all on the Sunday which occurs from January 2 to 5, and, if such a Sunday has not occurred or has been impeded by a nobler Office, on the second day of the same month. c) The Solemnity of St. Joseph, Spouse of the Blessed Virgin Mary, Confessor and Patron of the universal Church, which will be assigned to the Wednesday occurring before the third Sunday after Easter, and on it will be kept with its entire Octave, the other Feast of St. Joseph on March 19 being reduced to the rite of a Double of the second class. d) The Feast of St. Joachim, to be celebrated fixedly on August 16, with the Feast of St. Hyacinth being transferred from there to the following day, August 17. e) The Anniversary of the Dedication of the Cathedral Church, which, separately from the Anniversary of the Dedication of the other Churches of the Diocese, will be celebrated in the whole Diocese on the anniversary day itself, if it is known; otherwise on another fixed day, at the judgment of the Bishop, after nevertheless hearing the Cathedral Chapter, to be designated once for all. f) The Anniversary of the Dedication of one's own Church, which likewise, if up to now it has been celebrated on its own proper day by the individual churches of the diocese, is to continue to be celebrated on that day. But if in the whole diocese or Institute the Dedication of all Churches of the Diocese has been accustomed to be kept on one day, this, outside the Cathedral Church, can be kept only in consecrated Churches, but not in others, on a day to be designated by the Ordinary, as above, which nevertheless is to be another day than the day assigned for keeping the Dedication of the Cathedral Church. The same things are likewise to be observed concerning the Anniversary of the Dedication of all Churches of some Order or Congregation which up to now has been accustomed to be celebrated on Sunday. g) Feasts of Saints or Blesseds of whom mention is not made in the Martyrology, which nevertheless are to be celebrated, according to the Rubrics, on their natal day, if it is known, provided that another day has not been assigned by Apostolic Letters. h) Feasts which are affixed to certain Sundays after Easter or after Pentecost, which once by the Ordinary, as above, are to be assigned to the more fitting feria within the week immediately preceding.

2. Where the external Solemnity of Feasts which up to now were perpetually affixed to some Sunday is celebrated on that same Sunday, of the Solemnity of a Feast of Double of the first class all Masses are permitted, except the Conventual and Parochial, which are always to be said of the Office of the day; but of the Solemnity of a Feast of Double of the second class only one solemn or read Mass is permitted. The external Solemnity of the Most Holy Rosary is excepted, which can be celebrated on the first Sunday of October with all Masses, except the Conventual and Parochial, of the Most Holy Rosary, as was said above concerning Doubles of the first class.

All Masses of these Solemnities celebrated on Sunday are always to be said as on the Feast itself concerning which the solemnity is being held, with the Prayer of the Office of the day and all other things being added which would have to be said if the Feast had fallen on that same Sunday. (1) Nevertheless they are prohibited on all greater Sundays and on other Sundays on which an Office is made nobler than the Feast whose external Solemnity is being performed; but in the case, except in Doubles of the first class of the Lord of the universal Church, in all Masses which otherwise would be permitted of the externally celebrated Solemnity, its Prayer is added under one conclusion with the first. But where there is an obligation of the conventual Mass, in the case another solemn Mass is not permitted; rather, the Prayer of the Feast only externally celebrated can be added, as above, in the Conventual Mass itself.

(1) Hence, for example, if on the third Sunday after Easter one wished to celebrate the external Solemnity of the Patronage of St. Joseph, whose feast is perpetually assigned to the Wednesday preceding the same Sunday, all Masses, except one only, can be said of the aforesaid Feast with commemoration of the Sunday, with its Gospel at the end, the other commemorations of a simplified double or semidouble and of a simple, and other imposed Collects, being omitted, unless they were concerning a grave matter.

Likewise, if on the third Sunday of September one wished to celebrate the external Solemnity of the Blessed Virgin Mary of Sorrows, whose feast is perpetually fixed on the fifteenth day of the same month, only one solemn or read Mass is permitted of the aforesaid Solemnity, with commemoration of the Sunday and of other Saints of a simplified double or semidouble, but not of a Simple if the Mass is sung; only imposed Collects are omitted as above, provided they are not concerning a grave matter.

Note nevertheless that all Masses of these Solemnities celebrated on Sunday are prohibited on all greater Sundays, that is, of the first and second class, for example of Advent, Lent, etc., and on other Sundays on which an Office is made nobler than the Feast whose external Solemnity is being performed; but in the case, except in Doubles of the first class of the Lord of the universal Church, such as Easter, Pentecost, Most Holy Trinity, etc., in all Masses which otherwise would be permitted of the externally celebrated Solemnity, its prayer is added under one conclusion with the first.

3. The second, third, and fourth Sundays of Lent, raised to the rank of Sundays of the first class, will hereafter yield to no Feast, not even to a Double of the first class.

But the Sunday which occurs on January 2, 3, or 4, if on it the Feast of the Most Holy Name of Jesus or another Feast of the Lord is not to be celebrated according to the Rubrics, and provided that no commemoration of the Lord Himself is made either occurring or concurring, is commemorated in both Vespers, Lauds, and Mass, by the Antiphons, Verses, and Prayers of the Sunday within the Octave of the Nativity; but concerning it the ninth Lesson of the Homily is not said, nor is the Gospel read at the end of Mass.

But the Office of the Sunday which after Epiphany, with Septuagesima supervening, or after Pentecost, with the twenty-fourth Sunday supervening, must be anticipated, is celebrated on the preceding Saturday with semidouble rite, with all the privileges of a Sunday both in occurrence and in concurrence at first Vespers. All things are said of Saturday, and in first Vespers, of the preceding Friday, except the Prayer, Lessons, Antiphon at Benedictus, and proper Mass; and after None nothing further of the anticipated Sunday.