Acta Apostolicae Sedis

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Acta Apostolicae Sedis
Acta Apostolicae Sedis.svg
TypeDaily official journal
PublisherVatican City
Founded29 September 1908; 111 years ago (1908-09-29)
HeadquartersVatican City
Scale of justice
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Acta Apostolicae Sedis (Latin for "Acts of the Apostolic See"), often cited as AAS, is the official gazette of the Holy See,[1] appearing about twelve times a year.[2] It was established by Pope Pius X on 29 September 1908 with the decree Promulgandi Pontificias Constitutiones, and publication began in January 1909.[2] It contains all the principal decrees, encyclical letters, decisions of Roman congregations, and notices of ecclesiastical appointments.[3] The laws contained in it are to be considered promulgated when published, and effective three months from date of issue, unless a shorter or longer time is specified in the law.[3][4][5]

Acta Sanctae Sedis

Acta Sanctae Sedis (Latin for "Acts of the Holy See") was a Roman monthly publication containing the principal public documents issued by the pope, directly or through the Roman Congregations.[6]

It was begun in 1865, under the title of Acta Sanctae Sedis in compendium redacta etc.. Though not designated as the official means of promulgating laws of the Holy See, it was on 23 May 1904 declared an organ of the Holy See to the extent that all documents printed in it were considered "authentic and official". The Acta Sanctae Sedis ceased publication four years later.[6]


Cover page and leaf of Vol. 1, No. 1 of the Acta Apostolicae Sedis (1909)

On 29 September 1908, Pope Pius X, in the decree Promulgandi Pontificias Constitutiones, replaced the Acta Sanctæ Sedis with the Acta Apostolicae Sedis, to which he gave the status of the official gazette of the Holy See, and which began publication in January 1909.[7]

Acta Apostolicae Sedis is published in Latin and incorporates documents in many different languages.

Since 1929, Acta Apostolicae Sedis carries a supplement in Italian, called Supplemento per le leggi e disposizioni dello Stato della Città del Vaticano, containing laws and regulations of Vatican City, the city-state founded in that year. In accordance with paragraph 2 of the Legge sulle fonti del diritto of 7 June 1929,[8] the laws of the state are promulgated by being included in this supplement.

See also


  1. ^ New Commentary on the Code of Canon Law, pg. 60.
  2. ^ a b Oxford Dictionary of the Christian Church (Oxford University Press 2005 ISBN 978-0-19-280290-3), article Acta Apostolicae Sedis
  3. ^ a b Modern Catholic Dictionary, reproduced at Catholic Culture
  4. ^ 1917 Code of Canon Law, canon 9
  5. ^ 1983 Code of Canon Law, canon 8
  6. ^ a b "Acta Sanctæ Sedis." The Catholic Encyclopedia Vol. 1. New York: Robert Appleton Company, 1907. 3 September 2019 This article incorporates text from this source, which is in the public domain.
  7. ^ Oxford Dictionary of the Christian Church (Oxford University Press 2005 ISBN 978-0-19-280290-3), article Acta Apostolicae Sedis
  8. ^ "Leggi sulle fonti del diritto" [Read about the sources of law] (in Italian). The Vatican. 1 October 2008. Art. 1, (item) 2.