GIRM 87. In the dioceses of the United States of America there are four options for the Communion chant: (1) the antiphon from the Roman Missal or the Psalm from the
Roman Gradual as set to music there or in another musical setting; (2) the seasonal antiphon and Psalm of the
Simple Gradual; (3) a song from another collection of psalms and antiphons, approved by the United States Conference of Catholic Bishops or the Diocesan Bishop, including psalms arranged in responsorial or metrical forms; (4) a suitable liturgical song chosen in accordance with no. 86 above. This is sung either by the choir alone or by the choir or cantor with the people.
If there is no singing, however, the Communion antiphon found in the Missal may be recited either by the faithful, or by some of them, or by a lector. Otherwise the priest himself says it after he has received Communion and before he distributes Communion to the faithful.
- When the distribution of Communion is finished, as circumstances suggest, the priest and faithful spend some time praying privately. If desired, a psalm or other canticle of praise or a hymn may also be sung by the entire congregation.