And here are the various references to the GIRM from that document (for completeness’ sake).
304 - “Regarding the design of vestments, the conferences of bishops may determine and propose to the Apostolic See adaptations that correspond to the needs and usages of their regions.”
297 - “In the Church, the Body of Christ, not all members have the same function. This diversity of ministries is shown outwardly in worship by the diversity of vestments. These should therefore symbolize the function proper to each ministry. But at the same time the vestments should also contribute to the beauty of the rite.”
4 - “Further, because of the priest’s more prominent place and office in the rite, its form sheds light on the ministerial priesthood proper to the presbyter, who offers the sacrifice in the person of Christ and presides over the assembly of a holy people. The meaning of his office is declared and detailed in the preface for the chrism Mass on Thursday of Holy Week, the day celebrating the institution of the priesthood. The preface brings out the passing on of the sacerdotal power through the laying on of hands and, by listing its various offices, describes that power. It is the continuation of the power of Christ, High Priest of the New Testament.”
60 - “Within the community of believers, the presbyter is another who possesses the power of orders to offer sacrifice in the person of Christ. He therefore presides over the assembly and leads its prayer, proclaims the message of salvation, joins the people to himself in offering the sacrifice to the Father through Christ in the Spirit, gives them the bread of eternal life, and shares in it with them. At the Eucharist he should, then serve God and the people with dignity and humility; by his bearing and by the way he recites the words of the liturgy he should communicate to the faithful a sense of the living presence of Christ.”
81a - “[In the sacristy the vestments for the priest and ministers are to be prepared according to the various forms of celebration:] for the priest: alb, stole, and chasuble.”
298 - “The vestment common to ministers of every rank is the alb, tied at the waist with a cincture, unless it is made to fit without a cincture. An amice should be put on first if the alb does not completely cover the street clothing at the neck. A surplice may not be substituted for the alb when the chasuble or dalmatic is to be worn or when a stole is used instead of the chasuble or dalmatic.”
299 - “Unless otherwise indicated, the chasuble, worn over the alb and stole, is the vestment proper to the priest celebrant at Mass and other rites immediately connected with Mass.” (The original 1969 GIRM did not have the words in bold; they were added in the 1970 GIRM.)
161 - “In the sacristy or other suitable place, the concelebrants put on the vestments usual for individual celebrants. For a good reason, however, as when there are more concelebrants than vestments, the concelebrants may omit the chasuble and simply wear the stole over the alb; but the principal celebrant always wears the chasuble.”