Whenever the Court of Justice hears cases brought before it by a Mem ber State or by one of the institutions of the Community or, to the extent that the Chambers of the Court do not have the requisite jurisdiction under the Rules of Procedure, has to give preliminary rulings on questions sub mitted to it pursuant to Article 150, it shall sit in plenary session.**
Is i seisiún iomlánach a shuífidh an Chúirt Bhreithiúnais aon uair a bheidh cásanna á n-éisteacht aici a thug Ballstát nó ceann d'institiúidí an Chomhphobail os a comhair nó a bheidh réamhrialú le tabhairt aici ar cheisteanna a cuireadh faoina bráid de bhun Airteagal 150, sa mhéid nach dtugann na rialacha nós imeachta inniúlacht do dhlisheomraí na Cúirte. **