Permanent Deacons in Liturgical Roles in the Usus Antiquior?

One of our readers writes in with regard to a query they sent to the Ecclesia Dei Commission about permanent deacons fulfilling liturgical functions in the usus antiquior. This is a question we have seen come up from time to time on the NLM.

Here is the response Msgr. Camille Perl apparently gave to this question:

The Motu Proprio Summorum Pontificum, just as the Motu Proprio Ecclesia Dei, presupposes that any deacons, transitional or permanent, may function as deacons in the Mass according to the 1962 Roman Missal, provided, of course, that they are familiar with the rites and can function with sufficient ease.