4. Communion under Both Kinds
[100.] So that the fullness of the sign may be made more clearly evident to the faithful in the course of the Eucharistic banquet, lay members of Christ’s faithful, too, are admitted to Communion under both kinds, in the cases set forth in the liturgical books, preceded and continually accompanied by proper catechesis regarding the dogmatic principles on this matter laid down by the Ecumenical Council of Trent.
[101.] In order for Holy Communion under both kinds to be administered to the lay members of Christ’s faithful, due consideration should be given to the circumstances, as judged first of all by the diocesan Bishop. It is to be completely excluded where even a small danger exists of the sacred species being profaned. With a view to wider co-ordination, the Bishops’ Conferences should issue norms, once their decisions have received the recognitio of the Apostolic See through the Congregation for Divine Worship and the Discipline of the Sacraments, especially as regards “the manner of distributing Holy Communion to the faithful under both kinds, and the faculty for its extension”.
[102.] The chalice should not be ministered to lay members of Christ’s faithful where there is such a large number of communicantsthat it is difficult to gauge the amount of wine for the Eucharist and there is a danger that “more than a reasonable quantity of the Blood of Christ remain to be consumed at the end of the celebration”. The same is true wherever access to the chalice would be difficult to arrange, or where such a large amount of wine would be required that its certain provenance and quality could only be known with difficulty, or wherever there is not an adequate number of sacred ministers or extraordinary ministers of Holy Communion with proper formation, or where a notable part of the people continues to prefer not to approach the chalice for various reasons, so that the sign of unity would in some sense be negated.
[103.] The norms of the Roman Missal admit the principle that in cases where Communion is administered under both kinds, “the Blood of the Lord may be received either by drinking from the chalice directly, or by intinction, or by means of a tube or a spoon”. As regards the administering of Communion to lay members of Christ’s faithful, the Bishops may exclude Communion with the tube or the spoon where this is not the local custom, though the option of administering Communion by intinction always remains. If this modality is employed, however, hosts should be used which are neither too thin nor too small, and the communicant should receive the Sacrament from the Priest only on the tongue.