General Instruction of the Roman Missal
(U.S. Adaptation)
Congregation for Divine Worship
The Institutio Generalis Missalis Romani (IGRM) is the principle collection of liturgical norms applying to the Mass. Together with the rubrics (red-lettered instructions) interspersed throughout the liturgical texts of the Missal, they guide the priest in the lawful celebration of the Eucharist. In English the IGRM is called the General Instruction of the Roman Missal (GIRM).

The Institutio Generalis, or its translation, is printed in the front of the Missale Romanum (the official Roman Missal) and the approved vernacular translations of the Missal. The present Institutio Generalis was promulgated in March 2002 as part of the 3rd typical edition of the Missale Romanum. The previous two editions were published in 1969 and 1975. The present English translation, the General Instruction of the Roman Missal, was adapted by the United States Conference of Catholic Bishops (USCCB) for the US, and confirmed by the Holy See on March 17, 2003. It was promulgated by Bishop Wilton Gregory, then President of the USCCB, on March 19th, 2003, as "effective immediately."  

At this time, February 2005, the translation and approval of the 3rd typical edition of the Missale Romanum for use in the English speaking countries is not yet complete. However, the GIRM has been separately published by the USCCB and is available from EWTN Religious Catalogue (item 5543), as is the 2004 Roman document on liturgical abuses Redemptionis sacramentum (item 5619). There is also a program which aired on EWTN explaining some of the norms (item HVGIRM).


The copyrighted text of the GIRM with the American adaptations can be viewed on the website of the United States Conference of Catholic Bishops at:

General Instruction of the Roman Missal

The Latin typical edition:

Institutio Generalis Missalis Romani


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