The following has been released today by Ronald Herzog, Bishop of Alexandria, LA, presumably copying and pasting from a communication from Msgr Anthony Sherman of the BCDW:
I am happy to inform you that the Congregation for Divine Worship and the Discipline of the Sacraments has granted the recognitio for the Revised Grail Psalter by the Monks of Conception Abbey for liturgical use in the Dioceses of the United States, which has been approved by the Latin Church members of the USCCB in November, 2008.
The recognitio, dated March 19, 2010, indicates that the Revised Grail Psalter is the translation of the Psalms to be implemented in all future editions of liturgical books in the Dioceses of the United States. While it will be some time before new editions of affected texts are published, especially the Lectionary for Mass, the Revised Grail Psalter is now considered approved for liturgical use within the liturgy. While the New American Bible translation of the Psalms as contained in the Lectionary remains the official translation of the responsorial Psalms to be included in hymnals, and seasonal and annual participation aids, composers of liturgical music can use the text of the Revised Grail Psalter especially in preparing arrangements of Psalms for the Lectionary for use at Mass.