Embassy of the United States to the Holy See to the Holy See, previously located on Aventine Hill, moved to new headquarters in September 2015 in a separate building on the same compound as the United States Embassy Rome. Embassy of the United States to the Holy See The Embassy of the United States of America to the Holy See (or Embassy Vatican for short) is the diplomatic mission of United States of America to the Holy See, a term referring to the central government and universal reach of the Roman Catholic Church. The current embassy moved to new headquarters in September 2015 in a separate building on the
Foreign relations of the Holy See job, which was vacant since the previous ambassador died in December 2007. According to press accounts in Argentina in January 2008, the country's nominee as ambassador to the Holy See, Alberto Iribarne, a Catholic, was rejected on the grounds that he was living with a woman other than the wife from whom he was divorced. Since the Holy See is legally capable of ratifying international treaties, and does ratify them, it has negotiated numerous bilateral treaties with states and it has been invited to participate – on equal footing with States – in the negotiation of most universal International law-making