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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.

Exposures to corporates, institutions and central governments and central banks where own estimates of LGD are used and retail exposures

[F196. The requirements in points 97 to 104 shall not apply for guarantees provided by institutions, central governments and central banks, and corporate entities which meet the requirements laid down in Annex VIII, Part 1, point 26(g) if the credit institution has received approval to apply the rules of Articles 78 to 83 for exposures to such entities. In this case the requirements of Articles 90 to 93 shall apply.] U.K.
97.For retail guarantees, these requirements also apply to the assignment of exposures to grades or pools, and the estimation of PD.U.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.
Adjustment criteriaU.K.
101.A credit institution shall have clearly specified criteria for adjusting grades, pools or LGD estimates, and, in the case of retail and eligible purchased receivables, the process of allocating exposures to grades or pools, to reflect the impact of guarantees for the calculation of risk weighted exposure amounts. These criteria shall comply with the minimum requirements set out in points 17 to 29.U.K.
102.The criteria shall be plausible and intuitive. They shall address the guarantor's ability and willingness to perform under the guarantee, the likely timing of any payments from the guarantor, the degree to which the guarantor's ability to perform under the guarantee is correlated with the obligor's ability to repay, and the extent to which residual risk to the obligor remains.U.K.
Credit derivativesU.K.
103.The minimum requirements for guarantees in this part shall apply also for single-name credit derivatives. In relation to a mismatch between the underlying obligation and the reference obligation of the credit derivative or the obligation used for determining whether a credit event has occurred, the requirements set out under Annex VIII Part 2, point 21 shall apply. For retail exposures and eligible purchased receivables, this point applies to the process of allocating exposures to grades or pools.U.K.
104.The criteria shall address the payout structure of the credit derivative and conservatively assess the impact this has on the level and timing of recoveries. The credit institution shall consider the extent to which other forms of residual risk remain.U.K.