Source: http://oxfordlmsrep.blogspot.com/p/diocesan-reports.html
Timestamp: 2019-04-18 13:05:36+00:00

Document:
Motu Proprio Summorum Pontificium: full text [Side by side Latin-English PDF version]. Hat-tip to Rorate Caeli.
The Instruction Universae Ecclesiae, clarififying certain questions on the application of the Motu Proprio: full text in English.
Pontifical Council Ecclesia Dei: rulings on disputed questions.
Ruling of Ecclesia Dei on Altar Girls following the publication of Universae Ecclesiae.
The Roman Missal promulgated by Paul VI is the ordinary expression of the Lex orandi [Law of prayer] of the Catholic Church of the Latin rite. Nonetheless, the Roman Missal promulgated by St. Pius V and reissued by Bl. John XXIII is to be considered as an extraordinary expression of that same Lex orandi, and must be given due honour for its venerable and ancient usage. These two expressions of the Church’s Lex orandi will in no any way lead to a division in the Church’s Lex credendi [Law of belief]. They are, in fact two uses of the one Roman rite.
In Masses celebrated without the people ['missa sine populo': i.e. a private Mass: cf. Art 4], each Catholic priest of the Latin rite, whether secular or regular, may use the Roman Missal published by Bl. Pope John XXIII in 1962, or the Roman Missal promulgated by Pope Paul VI in 1970, and may do so on any day with the exception of the Easter Triduum. For such celebrations, with either one Missal or the other, the priest has no need for permission from the Apostolic See or from his Ordinary.
the law and following their own specific decrees and statutes.
Celebrations of Mass as mentioned above in art. 2 may – observing all the norms of law – also be attended by faithful who, of their own free will, ask to be admitted.
avoiding discord and favouring the unity of the whole Church.
In Masses celebrated in the presence of the people in accordance with the Missal of Bl. John XXIII, the readings may also be given in the vernacular [Lectiones proclamari possunt etiam lignua vernacula: ie after the reading of the lessons in Latin], using editions recognised by the Apostolic See.
If a group of lay faithful, as mentioned in art. 5 § 1, has not obtained satisfaction to their requests from the pastor, they should inform the diocesan bishop. The bishop is strongly requested to satisfy their wishes. If he does not want to arrange for such celebration to take place, the matter should be referred to the Pontifical Commission “Ecclesia Dei”.
A bishop who, desirous of satisfying such requests, but who for various reasons is unable to do so, may refer the problem to the Commission “Ecclesia Dei” to obtain counsel and assistance.
§ 1 The pastor, having attentively examined all aspects, may also grant permission to use the earlier ritual for the administration of the Sacraments of Baptism, Marriage, Penance, and the Anointing of the Sick, if the good of souls would seem to require it.
The ordinary of a particular place, if he feels it appropriate, may erect a personal parish in accordance with can. 518 for celebrations following the ancient form of the Roman rite, or appoint a chaplain, while observing all the norms of law.
The Pontifical Commission “Ecclesia Dei”, erected by John Paul II in 1988, continues to exercise its function. Said Commission will have the form, duties and norms that the Roman Pontiff wishes to assign it.
This Commission, apart from the powers it enjoys, will exercise the authority of the Holy See, supervising the observance and application of these dispositions.
We order that everything We have determined with this Apostolic Letter given Motu Proprio be considered as having full and lasting force, and be observed from September 14 of this year, Feast of the Exaltation of the Holy Cross, notwithstanding any provisions to the contrary.
The key provisions of Universae Ecclesiae, with my emphasis.
15. A coetus fidelium (“group of the faithful”) can be said to be stabiliter existens (“existing in a stable manner”), according to the sense of art. 5 § 1 of the Motu Proprio Summorum Pontificum, when it is constituted by some people of an individual parish who, even after the publication of the Motu Proprio, come together by reason of their veneration for the Liturgy in the Usus Antiquior, and who ask that it might be celebrated in the parish church or in an oratory or chapel; such a coetus (“group”) can also be composed of persons coming from different parishes or dioceses, who gather together in a specific parish church or in an oratory or chapel for this purpose.
16. In the case of a priest who presents himself occasionally in a parish church or an oratory with some faithful, and wishes to celebrate in the forma extraordinaria, as foreseen by articles 2 and 4 of the Motu Proprio Summorum Pontificum, the pastor or rector of the church, or the priest responsible, is to permit such a celebration, while respecting the schedule of liturgical celebrations in that same church.
17. § 1. In deciding individual cases, the pastor or the rector, or the priest responsible for a church, is to be guided by his own prudence, motivated by pastoral zeal and a spirit of generous welcome.
§ 2. In cases of groups which are quite small, they may approach the Ordinary of the place to identify a church in which these faithful may be able to come together for such celebrations, in order to ensure easier participation and a more worthy celebration of the Holy Mass.
18. Even in sanctuaries and places of pilgrimage the possibility to celebrate in the forma extraordinaria is to be offered to groups of pilgrims who request it (cf. Motu Proprio Summorum Pontificum, art. 5 § 3), if there is a qualified priest.
a. Every Catholic priest who is not impeded by Canon Law is to be considered idoneus (“qualified”) for the celebration of the Holy Mass in the forma extraordinaria.
b. Regarding the use of the Latin language, a basic knowledge is necessary, allowing the priest to pronounce the words correctly and understand their meaning.
c. Regarding knowledge of the execution of the Rite, priests are presumed to be qualified who present themselves spontaneously to celebrate the forma extraordinaria, and have celebrated it previously.
23. The faculty to celebrate sine populo (or with the participation of only one minister) in the forma extraordinaria of the Roman Rite is given by the Motu Proprio to all priests, whether secular or religious (cf. Motu Proprio Summorum Pontificum, art. 2). For such celebrations therefore, priests, by provision of the Motu Proprio Summorum Pontificum, do not require any special permission from their Ordinaries or superiors.
25. New saints and certain of the new prefaces can and ought to be inserted into the 1962 Missal, according to provisions which will be indicated subsequently.
26. As foreseen by article 6 of the Motu Proprio Summorum Pontificum, the readings of the Holy Mass of the Missal of 1962 can be proclaimed either solely in the Latin language, or in Latin followed by the vernacular or, in Low Masses, solely in the vernacular.

References: Art 4
 art. 2
 art. 5
 § 1

§ 1
 art. 5
 § 1
 § 1

§ 2
 art. 5
 § 3
 art. 2