 In 2006, Guiliano was nominated as a candidate for the post of Moderator.In August of that year at the 39th General Council of the United Church at Lakehead University in Thunder Bay, Ontario, he was elected as the Moderator for a three-year term.During his tenure as moderator, Giuliano tried to prepare the United Church for a new vision of its mission in Canada's post-Christian society, saying that concerns about falling attendance and revenue should not stand in the way of change, for "God is getting ready to do something new and is inviting us to be part of that."