Canon 1308. §1 A reduction of the obligations of Masses, to be made only for a just and necessary cause, is reserved to the diocesan bishop and to the supreme moderator of a clerical institute of consecrated life or a society of apostolic life.

§2 With regard to Masses independently founded in legacies, the diocesan bishop has the power, because of diminished revenues and for as long as the cause exists, to reduce the obligations to the level of offering legitimately established in the diocese, provided that there is no one obliged to increase the offering who can effectively be made to do so.

§3 The diocesan bishop also has the power to reduce the obligations or legacies of
Masses binding an ecclesiastical institute if the revenue has become insufficient to pursue appropriately the proper purpose of the institute.

§4 The supreme moderator of a clerical institute of consecrated life or a society of apostolic life possesses the same powers mentioned in §§2 and 3.
[revised wording according to m.p. Competentias quasdam decernere, 11.II.2022]

§1. Reductio onerum Missarum, ex iusta tantum et necessaria causa facienda, reservatur Episcopo dioecesano et supremo Moderatori instituti vitae consecratae vel societatis vitae apostolicae clericalium.

§2. Episcopo dioecesano competit facultas reducendi ob deminutionem redituum, quamdiu causa perduret ad rationem eleemosynae in dioecesi legitime vigentis, Missas legatorum, quae sint per se stantia, dummodo nemo sit qui obligatione teneatur et utiliter cogi possit ad eleemosynae augmentum faciendum.

§3. Eidem competit facultas reducendi onera seu legata Missarum gravantia institutum ecclesiasticum, si reditus insufficientes evaserint ad finem proprium eiusdem instituti congruenter consequendum.

§4. Iisdem facultatibus, de quibus in §§ 2 et 3, gaudet supremus Moderator instituti vitae consecratae vel societatis vitae apostolicae clericalium.