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Version status: Amended | Document consolidation status: Updated to reflect all known changes
Version date: 1 January 2019 - onwards
  Version 5 of 5    

Article 255 Determination of KIRB and KSA

1. Where an institution applies the SEC-IRBA under Subsection 3, the institution shall calculate KIRB in accordance with paragraphs 2 to 5.

2. Institutions shall determine KIRB by multiplying the risk-weighted exposure amounts that would be calculated under Chapter 3 in respect of the underlying exposures as if they had not been securitised by 8 % divided by the exposure value of the underlying exposures. KIRB shall be expressed in decimal form between zero and one.

3. For KIRB calculation purposes, the risk-weighted exposure amounts that would be calculated under Chapter 3 in respect of the underlying exposures shall include:

(a) the amount of expected losses associated with all the underlying exposures of the securitisation including defaulted underlying exposures that are still part of the pool in accordance with Chapter 3; and

(b) the amount of unexpected losses associated with all the underlying exposures including defaulted underlying exposures in the pool in accordance with Chap

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