| Home |  |  | # Fifth Instruction - Liturgiam authenticam The Fifth Instruction "For the right implementation of the Constitution on the Sacred Liturgy of the Second Vatican Council" was published on 25 April 2001. It is "On the use of vernacular languages in the publication of the books on the Roman Liturgy". The entire document has been put on the internet. The following links are to Congregation of Divine Worship and the Discipline of the Sacraments, on www.Vatican.va Congregation of Divine Worship and the Discipline of the Sacraments Fifth Instruction - English Congregation of Divine Worship and the Discipline of the Sacraments - Press Release |  | Links to news reports and reactions: CNS Reactions Adoremus Press Release NCCB/USCC CNS