A Plenary Indulgence may be acquired by members, with the conditions of confession, communion and prayers for the intentions of the Supreme Pontiff, provided that they make or renew, at least privately, the promise of faithfully observing the statutes at the following times:
1. On the day of investiture.
2. On the feasts of:
- St. Helen, 18th August
- St. Pius X, 21 August
- The Triumph of the Holy Cross, 14 September, and
- The Blessed Virgin Mary, Queen of Palestine, Sunday following 25th. October.