This from Catholic New Service:
ROME — Top officials from the Congregation for Divine Worship and the Sacraments will be principal celebrants at Tridentine liturgies during a conference in Rome this week. The Tridentine rite, in use before the reforms of the Second Vatican Council, is also called the extraordinary form of the liturgy.
U.S. Archbishop J. Augustine Di Noia, secretary of the Vatican congregation, will celebrate solemn pontifical vespers and benediction in the extraordinary form at the Church of St. Stephen of the Abyssinians, located inside the Vatican walls, Jan. 6.
On Jan. 7, Cardinal Antonio Canizares Llovera, prefect of the worship congregation, will celebrate a solemn pontifical Mass in the extraordinary form at the Basilica of St. John Lateran.
The conference is being co-sponsored by the U.S.-based Confraternity of Catholic Clergy and the Australian Confraternity of Catholic Clergy to mark the Year for Priests.