We will be dedicating a new altar soon with the bishop. In the meantime, may we use this new altar or should we have the old one in place as a temporary one?
--Acting upon in Albany
The Rite of Dedication of an Altar, 13 says:
Since an altar becomes a sacred principally by the celebration of the eucharist, in fidelity to this truth the celebration of Mass on a new altar before it has been dedicated is to be carefully avoided, so that the Mass of dedication may also be the first eucharist celebrated on the altar.