(13)In order to ensure the consistent application of the requirements laid down in Article 325bh of Regulation (EU) No 575/2013, it is necessary to further specify those requirements. Whether institutions comply with those requirements should be assessed on the basis of the broad risk factor categories referred to in Table 2 of Article 325bd of Regulation (EU) No 575/2013. It is therefore necessary, for each of those categories, to lay down how competent authorities are to assess whether basis risk is captured, and whether the treatment of curves and surfaces in the internal risk-measurement model is sound.