What is the New Revised Standard Version Catholic Edition?
The New Revised Standard Version Catholic Edition (NRSV-CE) is a translation of the Bible closely based on the New Revised Standard Version but including the deuterocanonical books and adapted for the use of Catholics with the approval of the Catholic Church. It contains all the canonical books of Scripture accepted by the Catholic Church arranged in the traditional Catholic order.
Thus, all the deuterocanonical books of the Old Testament are returned to their traditional Catholic order: thus the books of Tobit and Judith are placed between Nehemiah and Esther, the books of 1 Maccabees and 2 Maccabees are placed immediately after Esther, the books of Wisdom and Ecclesiasticus (Sirach) are placed after the Song of Songs, and the book of Baruch (including the Letter of Jeremiah as Baruch chapter 6) is placed after Lamentations.
The deuterocanonical additions to the Hebrew books of Esther and Daniel are included at their proper places in these protocanonical books: the Greek additions to Esther are interspersed in the Hebrew form of Esther according to the Septuagint, while the additions to Daniel are placed within chapter 3 and as chapters 13 and 14 of Daniel.
The apocryphal books (that is, 1 Esdras, 2 Esdras, the Prayer of Manasseh, 3 Maccabees, 4 Maccabees, and Psalm 151) are not included in the NRSV-CE. There are no other significant changes in the text. In accordance with the Code of Canon Law Canon 825.1, the New Revised Standard Version, Catholic Edition, has the imprimatur of the National Conference of Catholic Bishops (USA) and the Canadian Conference of Catholic Bishops granted on 12 September 1991 and 15 October 1991 respectively.
An Anglicized Text form of the NRSV-CE, embodying the preferences of users of British English, is also available from various publishers. Excerpts are adapted from the New Revised Standard Version, Catholic Edition, to form the approved English Lectionary for Mass by the Canadian Conference of Catholic Bishops. The NRSV-CE is also one of the versions of the Bible adapted in English editions of the Catechism of the Catholic Church.
1. Wikipedia, used under GDFL (with minor edits)