In July 2025, the Congregation for Divine Worship and the Discipline of the Sacraments promulgated a Mass formulary Pro custodia creationis, with its own eucology and lectionary, which will enrich the Missale Romanum in the section of Masses Pro variis necessitatibus. The article reproduces the text (in its long version) by His Excellency, the Most Reverend Vittorio Fran­cesco Viola, O.F.M., Secretary of the Dicastery for Divine Worship and the Discipline of the Sacraments, released during the press conference on 3 July 2025, at which the formulary was presented.