(170) Ós rud é nach féidir leis na Ballstáit cuspóir an Rialacháin seo, eadhon, leibhéal coibhéiseach cosanta do dhaoine nádúrtha agus saorshreabhadh sonraí pearsanta ar fud an Aontais a áirithiú, a ghnóthú go leordhóthanach agus, de bharr fhairsinge nó éifeachtaí na gníomhaíochta, gur fearr is féidir é a ghnóthú ar leibhéal an Aontais, féadfaidh an tAontas bearta a ghlacadh, i gcomhréir le prionsabal na coimhdeachta a leagtar amach in Airteagal 5 den Chonradh ar an Aontas Eorpach (CAE). I gcomhréir le prionsabal na comhréireachta a leagtar amach san Airteagal sin, ní théann an Rialachán seo thar a bhfuil riachtanach chun an cuspóir sin a ghnóthú.
(170) Since the objective of this Regulation, namely to ensure an equivalent level of protection of natural persons and the free flow of personal data throughout the Union, cannot be sufficiently achieved by the Member States and can rather, by reason of the scale or effects of the action, be better achieved at Union level, the Union may adopt measures, in accordance with the principle of subsidiarity as set out in Article 5 of the Treaty on European Union (TEU). In accordance with the principle of proportionality as set out in that Article, this Regulation does not go beyond what is necessary in order to achieve that objective.