Canon 388. §1 After he has taken possession of the diocese, the diocesan Bishop must apply the Mass for the people entrusted to him on each Sunday and on each holyday of obligation in his region.

§2 The Bishop must himself celebrate and apply the Mass for the people on the days mentioned in §1; if, however, he is lawfully impeded from so doing, he is to have someone else do so on those days, or do so himself on other days.

§3 A Bishop who, in addition to his own, is given another diocese, even as administrator, satisfies the obligation by applying one Mass for all the people entrusted to him.

§4 A Bishop who has not satisfied the obligation mentioned in §§1-3, is to apply as soon as possible as many Masses for the people as he has omitted.

§1. Episcopus dioecesanus, post captam dioecesis possessionem, debet singulis diebus dominicis aliisque diebus festis de praecepto in sua regione Missam pro populo sibi commisso applicare.

§2. Episcopus Missam pro populo diebus, de quibus in §1, per se ipse celebrare et applicare debet; si vero ab hac celebratione legitime impediatur, iisdem diebus per alium, vel aliis diebus per se ipse applicet.

§3. Episcopus, cui praeter propriam dioecesim aliae, titulo etiam administrationis, sunt commissae, obligationi satisfacit unam Missam pro universo populo sibi commisso applicando.

§4. Episcopus, qui obligationi, de qua in §§1-3, non satisfecerit, quam primum pro populo tot Missas applicet quot omiserit.