67. It is for the celebrant to use fully and intelligently the freedom which is given to him either in the General Introduction to Christian Initiation no.
34 or in the rubrics of the rite itself. In many places the manner of acting or praying is intentionally left undetermined or two alternatives are offered, so
that the celebrant, according to his prudent pastoral judgment, may accommodate the rite to the circumstances of the candidates and others who are present. The
greatest freedom is left in the introductions and intercessions, which may always be shortened, changed, or even expanded with new intentions in order to fit the circumstances or special situation of the candidates (for example, a sad or joyful event occurring in a family) or of the others present (for example, joy or sorrow common to the parish or civic community).
The celebrant will also adapt the texts by changing the gender and number as required.