From a profile of the couple who’ve run RCIA for 25 years at St. Maximilian Kolbe, one of the largest parishes in the Archdiocese of Cincinnati, in the just-released January 2016 print edition the Catholic Telegraph:
“The most important thing we do upfront and realizes is — even the folks at Vatican II said — the Roman Catholic Church does not have a franchise on salvation.”
And here is what Vatican II actually says about salvation:
“Those men cannot be saved who, though aware that God through Jesus Christ founded the Church as something necessary, still do not wish to enter into it or to persevere in it” (Ad Gentes Divinitus—Decree on the Church’s Missionary Activity, 7).
“For it is only through Christ’s Catholic Church, which is ‘the all-embracing means of salvation,’ that they can benefit fully from the means of salvation. We believe that our Lord entrusted all the blessings of the New Covenant to the apostolic college alone, of which Peter is the head, in order to establish the one Body of Christ on earth to which all should be fully incorporated who belong in any way to the people of God” (Unitatis Redintegratio —Decree on Ecumenism, 3).
An extended discussion of the Church and salvation by Fr. Peter Stravinskas is here.