Treaty between the Holy See and Italy, article 26. Vatican City is a city-state In accordance with paragraph 2 of the Legge sulle fonti del diritto of 7 June 1929, all laws and regulations of the state are published in the Italian-language Supplemento per le leggi e disposizioni dello Stato della Città del Vaticano attached to the Acta Apostolicae Sedis. The text of the first seven items published in that supplement is given here. While the state itself uses only Italian, many other languages are used by institutions situated within the state, such as the Holy See, the Pontifical Swiss Guard, and the Pontifical Academy of Sciences. The Holy See uses Latin as an official language and French as a diplomatic language; in addition, its Secretariat of State uses English, German, Italian, Polish, Portuguese and Spanish. The Swiss Guard, in which commands on parade are given in German, also uses French and Italian in all its official ceremonies. The semi-official Holy See newspaper L'Osservatore Romano uses English, French, German, Italian, Malayalam, Polish, Portuguese and Spanish.