- In accordance with the structure of each church and legitimate local customs, the Most Blessed Sacrament should be reserved in a tabernacle in a part of the church that is truly noble, prominent, conspicuous, worthily decorated, and suitable for prayer.[124]
The tabernacle should usually be the only one, be irremovable, be made of solid and inviolable material that is not transparent, and be locked in such a way that the danger of profanation is prevented to the greatest extent possible.[125] Moreover, it is appropriate that before it is put into liturgical use, the tabernacle be blessed according to the rite described in the Roman Ritual.[126]
- It is more appropriate as a sign that on an altar on which Mass is celebrated there not be a tabernacle in which the Most Holy Eucharist is reserved.[127]
Consequently, it is preferable that the tabernacle be located, according to the judgment of the Diocesan Bishop:
a) either in the sanctuary, apart from the altar of celebration, in a appropriate form and place, not excluding its being positioned on an old altar no longer used for celebration (cf. no. 303);
b) or even in some chapel suitable for the private adoration and prayer of the faithful[128] and organically connected to the church and readily noticeable by the Christian faithful.
- In accordance with traditional custom, near the tabernacle a special lamp, fueled by oil or wax, should shine permanently to indicate the presence of Christ and honor it.[129]
- In no way should any of the other things be forgotten which are prescribed by law concerning the reservation of the Most Holy Eucharist.[130]