Christus Dominus is the
Second Vatican Council's Decree on the Pastoral Office of Bishops. It was approved by a vote of 2,319 to 2 of the assembled
bishops and was promulgated by
Pope Paul VI on 28 October 1965. The title in
Latin means "Christ the Lord," and is from the first line of the decree, as is customary for
Roman Catholic documents. (The full text in English is available from the
Holy See's website])