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Version status: Amended | Document consolidation status: Updated to reflect all known changes
Version date: 28 June 2021 - onwards
  Version 6 of 6    

Article 403 Substitution approach

1. Where an exposure to a client is guaranteed by a third party or is secured by collateral issued by a third party, an institution shall:

(a) treat the portion of the exposure which is guaranteed as exposure to the guarantor rather than to the client, provided that the unsecured exposure to the guarantor would be assigned a risk weight that is equal to or lower than the risk weight of the unsecured exposure to the client under Chapter 2 of Title II of Part Three;

(b) treat the portion of the exposure collateralised by the market value of recognised collateral as exposure to the third party rather than to the client, provided that the exposure is secured by collateral and provided that the collateralised portion of the exposure would be assigned a risk weight that is equal to or lower than the risk weight of the unsecured exposure to the client under Chapter 2 of Title II of Part Three.

The approach referred to in point (b) of the first subparagraph shall not be used by an institution

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