What are the responsibilities of the bishops’ conference?
15. It will be the responsibility of the Conference of Bishops to determine which of the prevailing languages are to be introduced into full or partial liturgical use in its territory. Their decisions require the recognitio of the Apostolic See before the work of translation is undertaken in any way.[Cf. SC 36 § 3; S. Congr. for the Sacraments and Divine Worship, Letter to the Presidents of the Conferences of Bishops De linguis vulgaribus in S. Liturgiam inducendis, 5 June 1976: Notitiae 12 (1976) 300-301.] Before giving its decision on this matter, the Conference of Bishops should not omit to seek the written opinion of experts and other collaborators in the work; these opinions, together with the other acts, are to be sent in written form to the Congregation for Divine Worship and the Discipline of the Sacraments, in addition to the relatio mentioned below, in art. n. 16.
Curious wording that’s not quite the same as, “(They) should seek the written opinion of experts.”