 He was also president of Pontifical Mission Aid Societies (1964–1967), a member of the Congregation for Divine Worship and the Discipline of the Sacraments, and was President of Pontifical Works and of the Liturgical Academy.Poletti was created Cardinal-Priest of "Ss.Ambrogio e Carlo" by Pope Paul in the consistory of 5 March 1973, in advance for his appointment as Vicar General of Rome, and also Archpriest of the Lateran Basilica, on 26 March of that same year.