The Council, acting unanimously throughout the procedure referred to in Article 251, shall decide on directives the implementation of which involves in at least one Member State amendment of the existing principles laid down by law governing the professions with respect to training and conditions of access for natural persons.
Déanfaidh an Chomhairle, ag gníomhú di d'aon toil i gcaitheamh an nós imeachta dá dtagraítear in Airteagal 251, cinneadh maidir le treoracha ar gá, chun iad a chur chun feidhme i mBallstát amháin ar a laghad, leasú a dhéanamh arna prionsabail reachtaíochta atá ann cheana a bhaineann le córas rialú na ngairmeacha maidir le hoiliúint agus le coinníollacha rochtana do dhaoine nádúrtha.