throughout the performance of the contract, continuously ensuring the effectiveness of the principles, tools and procedures referred to in point (d).
déanfaidh sé a áirithiú go leanúnach, ar feadh chomhlíonadh an chonartha, éifeachtacht na bprionsabal, na n-uirlisí agus na nósanna imeachta dá dtagraítear i bpointe (d).