IN addition to this, the Canon that Mardukum is citing in the CCEO:
Canon 657
- The approval of liturgical texts, after prior review of the
Apostolic See, is reserved in patriarchal Churches to the patriarch with the consent of the synod of bishops of the patriarchal
Church, in metropolitan Churches sui iuris to the metropolitan
with the consent of the council of hierarchs; in other Churches
this right rests exclusively with the Apostolic See, and, within
the limits set by it, to bishops and to their legitimately constituted assemblies. 2. The same authorities are also competent to approve the translations of these books meant for liturgical use, after sending a report to the Apostolic See in the
case of patriarchal Churches and metropolitan Churches sui iuris.
- To republish liturgical books or their translations intended
even in part for liturgical use, it is required and suffices to
establish their correspondence with the approved edition by an
attestation of the hierarch referred to in can. 662, 1. 4. In
making changes in liturgical texts, attention is to be paid to
can. 40, 1.