Jus novum (c. 1140-1563) Jus novissimum (c. 1563-1918) Jus codicis (1918-present) Other Sacraments Sacramentals Sacred places Sacred times Supra-diocesan/eparchal structures Particular churches Juridic persons Philosophy, theology, and fundamental theory of Catholic canon law Clerics Office Juridic and physical persons Associations of the faithful Pars dynamica (trial procedure) Canonization Election of the Roman Pontiff Academic degrees Journals and Professional Societies Faculties of canon law Canonists Institute of consecrated life Society of apostolic life The General Instruction of the Roman Missal (GIRM)—in the Latin original, Institutio Generalis Missalis Romani (IGMR)—is the detailed document governing the celebration of Mass of the Roman Rite in what since 1969 is its normal form.
The 1960 Code of Rubrics replaced the Rubricae Generales Missalis, which had been in the Tridentine Roman Missal since its first edition in 1570 and had been amplified and revised by Pope Clement VIII in 1604.
In his 1962 edition, Pope John XXIII had made some changes to the document at the beginning of the Roman Missal called Ritus servandus in celebratione Missarum ('Rite to be observed in celebration of Masses').
[1] In his apostolic exhortation Sacramentum caritatis, Pope Benedict XVI stressed the importance of proper knowledge of the General Instruction not only for priests but also for the laity:[2] The eucharistic celebration is enhanced when priests and liturgical leaders are committed to making known the current liturgical texts and norms, making available the great riches found in the General Instruction of the Roman Missal and the Order of Readings for Mass.
These texts contain riches which have preserved and expressed the faith and experience of the People of God over its two-thousand-year history.In the circumstances indicated in the motu proprio Traditionis Custodes of 2021, the Catholic Church still permits celebrations of Mass in accordance with the 1962 edition of the Roman Missal.