5.3.1 Data requirements for the calculation of observed default rates

70. For the purpose of calculating the one-year default rate defined in point (78) of Article 4(1) of Regulation (EU) No 575/2013, institutions should ensure the completeness of the quantitative and qualitative data and other information in relation to the denominator and numerator as outlined in paragraphs 73 and 74 and used for the calculation of the observed average default rate. In particular, institutions should ensure that at least the following data for the relevant observation period referred to in paragraphs 82 to 83 is properly stored and available:

(a) the criteria for identifying the relevant type of exposures covered by the PD model under consideration;

(b) the criteria for identifying the calibration segments;