(9)The requirements set out in Article 184 of Regulation (EU) No 575/2013 aim to ensure that, when quantifying risk parameters for purchased receivables, the purchasing institution exercises a sufficient minimum level of control over those receivables on an ongoing basis, has ongoing access to data and information related to the riskiness of the receivables, including from the seller and servicer of the receivables, and takes into account on an ongoing basis the seller’s and servicer’s characteristics and conduct that may affect the riskiness of the receivables. Those operational and due diligence requirements must be met to ensure a sufficiently prudent and accurate application of the IRB approach on the purchased receivables. To ensure that qualifying securitised exposures are subject to similar requirements, it is necessary to tailor the requirements of Article 184 of Regulation (EU) No 575/2013 to institutions calculating K IRB in relation to those exposures. Where there is a securitisation special purpose entity (‘SSPE’), the SSPE should have ownership over the securitised exposures and exercise control over the cash remittances, either directly or through a trustee or an entity that performs similar tasks on its behalf. The institution calculating K IRB should conduct a due diligence on the servicer of the securitised exposures and, where the institution itself is not the originator of the transaction, on the securitisation’s originator, as originator’s and servicer’s standards and behaviour are risk drivers in relation to the exposures underlying the securitisation transaction. It is possible that the institution calculating K IRB holds, in accordance with Articles 153 and 154 of Regulation (EU) No 575/2013, purchased receivables on its balance sheet, and that it has received a refundable purchase discount, collateral or partial guarantees that provide first-loss protection for default losses, dilution losses, or both. In that case, institutions should be allowed to treat those purchased receivables as qualifying securitised exposures and, where they apply that option, they should be required to exercise due diligence on the servicer, where applicable, and on the seller, as the servicer’s and seller’s standards and behaviour are risk drivers in relation to those qualifying securitised exposures.