Such roles and responsibilities should be established in such a way so as to ensure that a three-level approach is respected which would involve, first, the relevant natural gas undertakings and industry, second, Member States at national or regional level, and third, the Union.
Ba cheart na róil agus na freagrachtaí sin a bhunú ar shlí ina n-áiritheofaí go n-urramófar cur chuige trí leibhéal, ar cur chuige é a mbeadh baint ag na gnóthais ábhartha gáis nádúrtha agus lucht tionscail leis ar an gcéad dul síos, ag na Ballstáit ar an leibhéal náisiúnta nó ar leibhéal réigiúnach ar an dara dul síos, agus ag an Aontas ar an tríú dul síos.