(13)The set of ‘No data’ (‘ND’) options should only be used where information is not available for justifiable reasons, including where a specific reporting item is not applicable due to the heterogeneity of the underlying exposures for a given securitisation. The use of ND options should however in no way constitute a circumvention of reporting requirements. The use of ND options should therefore be objectively verifiable on an ongoing basis, in particular by providing explanations to competent authorities at any time, upon request, of the circumstances that have resulted in the use of the ND values.