While we're at
Ecclesia Dei, some more points:
24. The liturgical books of the forma extraordinaria are to be used as they are. All those who wish to celebrate according to the forma extraordinaria of the Roman Rite must know the pertinent rubrics and are obliged to follow them correctly.
27. With regard to the disciplinary norms connected to celebration, the ecclesiastical discipline contained in the Code of Canon Law of 1983 applies.
28. Furthermore, by virtue of its character of special law, within its own area, the Motu Proprio Summorum Pontificum derogates from those provisions of law, connected with the sacred Rites, promulgated from 1962 onwards and incompatible with the rubrics of the liturgical books in effect in 1962.
Other forums are asking how this helps to answer such questions as:
1. May communion be distributed under both species?
2. May extraordinary ministers of holy communion be used? (male or female)
3. May one receive communion standing, or must one kneel? How about communion in the hand?
4. May lay persons (esp. lay women) proclaim the scriptures?
5. May girls also assist at the altar? (The Vatican spokesperson simply sidestepped that question by saying that this document does not address the issue.)
6. Since "permanent" deacons did not exist in 1962, do they have any role in the extraordinary form?
7. Which eucharistic fast ought to be observed?
8. Is concelebration allowed?
9. What liturgical items must be used? (ex: maniple, tunicle)
10. May a priest preside at more than 2 Masses on a day (3 on a Sunday) if the extra one is to be in the extraordinary form?
In other words, does 1962 take precedence over the 1983 CCL, or is it the other way round?
And does the new instruction affect the norms regarding altars in GIRM 299 (built apart from the wall...Mass be celebrated facing the people...) and GIRM 303 (...preferable to erect a single altar...signify the one Christ and the one Eucharist...). In other words, are there to be two altars, one for the ordinary form of the Mass and one for the extraordinary, or are both forms of the Mass to be celebrated at the same altar? You can still stand with your back to the people at one altar away from the wall. This is a serious concern for church design/renovation/building.