1. Where a credit assessment exists for a specific issuing program or facility to which the item constituting the exposure belongs, that credit assessment shall be used.
2. Where no directly applicable credit assessment exists for a certain item, but a credit assessment exists for a specific issuing program or facility to which the item constituting the exposure does not belong or a general credit assessment exists for the issuer, that credit assessment shall be used in either of the following cases:
it produces the same or higher capital requirement than would otherwise be the case and the exposure in question rankspari passuor junior in all respects to the specific issuing program or facility or to senior unsecured exposures of that issuer, as relevant;
it produces the same or lower capital requirement than would otherwise be the case and the exposure in question rankspari passuor senior in all respects to the specific issuing program or facility or to senior unsecured exposures of that issuer, as relevant.
In all other cases, insurance or reinsurance undertakings shall consider that there is no credit assessment by a nominated ECAI available for the exposure.
3. Credit assessments for issuers within a corporate group shall not be used as the credit assessment for another issuer within the same corporate group.