A priest's first Mass is always a Solemn High Mass,
where circumstances permit. However on such occasions in addition
to the celebrant, the deacon and subdeacon, another priest, named the
Arch-Priest, who assists the celebrant, is permitted. He may wear a
stole and cope over the surplice, using the same color for the cope and
stole as the vestments of the Mass. A chair should be placed near the
sedilia for the Arch-Priest.
The Altar should be
beautifully adorned on such an occasion. The vestments are the color of
the day but gold vestments are permissible in place of white, red or
green.
