276. Every encouragement should be given to the practice of eucharistic reservation in a chapel suited to the faithful's private adoration and prayer.  If this is impossible because of the structure of the church, the sacrament should be reserved at an altar or elsewhere, in keeping with local custom, and in a part of the church that is worthy and properly adorned. 
277. The Eucharist is to be reserved in a single, solid, immovable tabernacle that is opaque and is locked in such a way as to provide every possible security against the danger of desecration. Thus as a rule there should be only one tabernacle in each church.