 He received his episcopal consecration on the following 14 September from Archbishop Vincenzo Gremigni, MSC, with Bishops Mario Longo Dorni and Francesco Brustia serving as co-consecrators.Poletti attended the Second Vatican Council from 1962 to 1965, and was later named Archbishop of Spoleto on 26 June 1967.Pope Paul VI made him Titular Archbishop of "Aemona" and Second Vicegerent of Rome on 3 July 1969, and then Pro-Vicar General of Rome on 13 October 1972.