Can.1244 $1. It is within the competence of the supreme ecclesiastical authority alone to establish, transfer or abolish feast days or days of penance which are common to the
universal Church, with due regard for the prescription of can.1246, $2.
$2. Diocesan bishops can determine special feast days or days of penance for their dioceses or places but only per modum actus.
Can.1245 With due regard for the right of diocesan bishops which is mentioned in can.87, for a just reason and in accord with the prescriptions of the diocesan bishop, the
pastor in individual cases can dispense from the obligation to observe a feast day or a day of penance; or the can commute it to other pious works; the superior of a religious institute or a society of
apostolic life of pontifical right if they are clerical can also do the same for his own subjects and others staying in his house day and night.