This variation to the implementation of the Roman Missal, Third Edition, set to take place all at once on November 27, was authorized by USCCB president, Archbishop Timothy Dolan of New York, and adopted by the committee to allow parish communities to learn the various parts of the new translation in a timely fashion and an even pace.
The Committee on Divine Worship made the decision in response to requests from several bishops, echoed by the National Advisory Council. Some suggested that the various acclamations could be more effectively introduced throughout the fall, so that when the full Missal is implemented on the First Sunday of Advent, the congregation will have already become familiar with the prayers that are sung.
I ask you to encourage this as a means of preparing our people and helping them embrace the new translation, Archbishop Gregory told the bishops. The announcement took place June 16, during the U.S. bishops Spring Assembly near Seattle.