Can permanent Deacons serve as Deacons and Sub-deacons in the Extraordinary Form?
With the permanent Diaconate restored it is now possible that these Deacons can serve as Deacon or Sub-deacon for Solemn Mass. Today, it is not uncommon to have Solemn Mass with an ordained Deacon (transitional or permanent) serving as Deacon or Sub-deacon. The Ecclesia Dei commission granted, some years ago, permission to instituted Acolytes to serve as Sub-deacons at Solemn Mass, noting that they could not wear the maniple or wipe out the chalice after the ablution.