[quote="L_Marshall, post:5, topic:349640"]
Deacons may not self-communicate, but I think it's important to recognize that not even priests can self-communicate in all situations. A priest may only self-communicate if he is celebrating (including concelebrating) the Mass. A priest who sat in choir, or who sat in the pews for the Mass cannot self-communicate, and this is a problem that is sometimes faced.
This is not right. In the NO Mass for large celebrations where there are many priests, it is not uncommon nor is it improper to see the priests in the pews who are vested and part of the procession and recession to be brought the Eucharist in the pews at the proper time and self-communicate.
If they are not vested and sitting in the congregation then no they cannot self-communicate. Also, if it is an EF Mass and the priests are vested and in choir to my knowledge they would not self-communicate; but I am no expert in the EF of the Mass.
But in the Mass, a deacon is never allowed to self-communicate. As another poster stated, many priests do not know this and offer the Eucharist by way of presenting the paten or ciborium for the deacon to take the Eucharist but it is up to the deacon to politely and quietly say "no father". Unfortunately some will not correct the priests.