Scott,
From the CCEO:
Canon 880 -�1. Only the supreme authority of the Church can establish, transfer or supress feast days and days of penance which are common to all of the Eastern Churches, with due regard for �3.
�2. The authority of a Church sui iuris which is competent to establish particular law can constitute, transfer or supress feast days and days of penance for that Church sui iuris, however having sought the opinions of the other Churches sui iuris and with due regard for Canon 40, �1.
The Canons are clear. Only the Council of Hierarchs can constitute mandatory fasts for our Metropolia.
Fr. Deacon Lance