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ANNEX VIIU.K.INTERNAL RATINGS BASED APPROACH

PART 4U.K.Minimum requirements for IRB Approach

2.RISK QUANTIFICATIONU.K.

2.2.Overall requirements for estimationU.K.

2.2.4.Minimum requirements for assessing the effect of guarantees and credit derivativesU.K.
Eligible guarantors and guaranteesU.K.
98.Credit institutions shall have clearly specified criteria for the types of guarantors they recognise for the calculation of risk weighted exposure amounts.U.K.
99.For recognised guarantors the same rules as for obligors as set out in points 17 to 29 shall apply.U.K.
100.The guarantee shall be evidenced in writing, non-cancellable on the part of the guarantor, in force until the obligation is satisfied in full (to the extent of the amount and tenor of the guarantee) and legally enforceable against the guarantor in a jurisdiction where the guarantor has assets to attach and enforce a judgement. Guarantees prescribing conditions under which the guarantor may not be obliged to perform (conditional guarantees) may be recognised subject to approval of competent authorities. The credit institution shall demonstrate that the assignment criteria adequately address any potential reduction in the risk mitigation effect.U.K.