From the Manual on Indulgences, published 2006 by the USCCB, being a translation of the Enchiridion Indulgentiarum quarto editur.
28 PROFESSION OF FAITH AND ACTS OF THE THEOLOGICAL VIRTUES
§ 1 A plenary indulgence is granted to the faithful who, at the celebration of the Easter Vigil or on the anniversary of their own Baptism, renew their baptismal vows in any legitimately approved formula.
§2 A partial indulgence is granted to the faithful who
1. renew their baptismal vows in any formula;
2. devoutly sign themselves with the sign of the cross, using the customary words: In the name of the Father and of the Son and of the Holy Spirit. Amen;
3. devoutly recite either the Apostles’ Creed or the Niceno-Constantinopolitan Creed;
4. recite an Act of Faith, Hope, and Charity in any legitimate formula.
