An optional bit, if the parish is placing relics:
24. If relics of the saints are to be placed beneath the altar, the following should be prepared:
a) In the place of assembly:
- reliquary containing the relics, placed between flowers and lights. When the simple entrance is used, the reliquary may be placed in a suitable part of the sanctuary before the rite begins;
- for the deacons who will carry the relics to be deposited: albs, red stoles, if the relics are those of a martyr, or white in other cases, and, if available, dalmatics. If the relics are carried by priests, then in place of dalmatics chasubles should be prepared.
The relics may also be carried by other ministers, vested in albs or other lawfully approved dress.
b) In the sanctuary: a small table on which the reliquary is placed during the first part of the dedication rite.
c) In the sacristy: a sealant or cement to close the cover of the aperture. In addition, a stonemason should be on hand to close the depository of the relics at the proper time.
Records of the dedication are needed, in triplicate:
25. The record of the dedication of the church should be drawn up in duplicate, signed by the bishop, the rector of the church, and representatives of the local community; one copy is to be kept in the diocesan archives, the other in the archives of the church. Where the depositing of relics takes place, a third copy of the record should be made, to be placed at the proper time in the reliquary.
In this record mention should be made of the day, month, and year of the church’s dedication, the name of the bishop who celebrated the rite, also the titular of the church and, where applicable, the names of the martyrs or saints whose relics have been deposited beneath the altar.
And don’t neglect the public record:
Moreover, in a suitable place in the church, an inscription should be placed stating the day, month, and year when the dedication took place, the titular of the church, and the name of the bishop who celebrated the rite.
In my experience, this last prescription is never completed. It should be quite simple to do:
1 january 2000
Bishop I.M. Thebos