Related provisions for BIPRU 4.8.3
1 - 10 of 10 items.
The credit risk control unit must be independent from the personnel and management functions responsible for originating or renewing exposures and report directly to senior management. The unit must be responsible for the design or selection, implementation, oversight and performance of the rating systems. It must regularly produce and analyse reports on the output of the rating systems.[Note:BCD Annex VII Part 4 point 128]
A firm must document the design and operational details of its rating systems. The documentation must evidence compliance with the minimum IRB standards and the firm'sIRB permission, and address topics including portfolio differentiation, rating criteria, responsibilities of parties that rate obligors and exposures, frequency of assignment reviews, and management oversight of the rating process.[Note:BCD Annex VII Part 4 point 31]
A rating system comprises all of the methods, processes, controls, data collection and IT systems that support the assessment of credit risk, the assignment of exposures to grades or pools (rating), and the quantification of default and loss estimates for a certain type of exposure.[Note:BCD Annex VII Part 4 point 1]
(1) This paragraph contains guidance on BIPRU 4.3.43 R and more general guidance about the governance of rating systems.(2) In determining the assignment referred to in BIPRU 4.3.43 R, a firm should have regard to the sensitivity of the rating to movements in fundamental risk drivers.(3) A firm should, for any rating system, be able to demonstrate that it acts appropriately or has an appropriate policy, as applicable, with respect to:(a) any deficiencies caused by its not being
For grade and pool assignments a firm must document the situations in which human judgement may override the inputs or outputs of the assignment process and the personnel responsible for approving these overrides. A firm must document these overrides and the personnel responsible. A firm must analyse the performance of the exposures whose assignments have been overridden. This analysis must include assessment of the performance of exposures whose rating has been overridden by
(1) This paragraph applies to the use of statistical models and/or other mechanical methods to assign exposures to obligor grades, obligor pools, facility grades or facility pools.(2) A firm must be able to demonstrate to the appropriate regulator that the model has good predictive power and that capital requirements are not distorted as a result of its use.(3) The input variables to the model must form a reasonable and effective basis for the resulting predictions. The model
(1) This paragraph contains guidance on BIPRU 4.3.51 R (7).(2) BIPRU 4.3.51 R (7) does not require that each individual assignment of an exposure to a pool or grade should be the subject of an open-ended review by reference to factors not covered by the model if:(a) that is not necessary in order to meet the requirements of BIPRU 4 about the ability of the rating system to predict and to discriminate (as referred to in BIPRU 4.3.29 R to BIPRU 4.3.30 R (Validation of internal estimates));
A firm should be able to demonstrate to the appropriate regulator:(1) how, with respect to each rating system, both assignment of ratings and estimates of PD, LGD and conversion factors are affected by:(a) movements in the economic cycle; and(b) other cyclical effects which are material to levels of default, loss or the amount of exposures at default for the exposures covered by the rating system; and(2) the level of conservatism inherent in its ratings, as provided for by BI
(1) If:(a) a firm's internal experience of exposures of a type covered by a model or other rating system is 20 defaults or fewer; and(b) in the firm's view, reliable estimates of PD cannot be derived from external sources of default data, including the use of market price related data, for all the exposures covered by the rating system;the firm must estimate PD for exposures covered by that rating system in accordance with this rule.(2) A firm must use a statistical technique
An obligor grade means for the purpose of BIPRU 4 as it applies to the sovereign, institution and corporate IRB exposure class a risk category within a rating system's obligor rating scale, to which obligors are assigned on the basis of a specified and distinct set of rating criteria, from which estimates of PD are derived. A firm must document both the relationship between obligor grades in terms of the level of default risk each grade implies and the criteria used to distinguish
In addition to complying with the material in BIPRU 4.3.54 R (Data maintenance) a firm must collect and store:(1) complete rating histories on obligors and recognised guarantors;(2) the dates the ratings were assigned;(3) the key data and methodology used to derive the rating;(4) the person responsible for the rating assignment;(5) the identity of obligors and exposures that defaulted;(6) the date and circumstances of such defaults;(7) data on the PDs and realised default rates
1A facility grade means for the purpose of the advanced IRB approach a risk category within a rating system's facility scale to which exposures are assigned on the basis of a specified and distinct set of rating criteria from which own estimates of LGDs are derived. The grade definition must include both a description of how exposures are assigned to the grade and of the criteria used to distinguish the level of risk across grades.[Note:BCD Annex VII Part 4 point 10]
A firm's systems for the management and rating of credit risk exposures must be sound and implemented with integrity and, in particular, they must meet the following standards in accordance with the minimum IRB standards:(1) the firm'srating systems provide for a meaningful assessment of obligor and transaction characteristics, a meaningful differentiation of risk and accurate and consistent quantitative estimates of risk;(2) internal ratings and default and loss estimates used
(1) This paragraph provides guidance on BIPRU 4.2.2 R and in particular BIPRU 4.2.2 R (1).(2) The information that a firm produces or uses for the purpose of the IRB approach should be reliable and take proper account of the different users of the information produced (customers, shareholders, regulators and other market participants).(3) A firm should establish quantified and documented targets and standards, against which it should test the accuracy of data used in its rating
A firm must be able to demonstrate that it has been using for the IRB exposure classes in question rating systems that were broadly in line with the minimum IRB standards for internal risk measurement and management purposes for at least three years prior to the date of its IRB permission.[Note:BCD Article 84(3)]
(1) To the extent that its IRB permission permits this, a firm permitted to use the IRB approach in the calculation of risk weighted exposure amounts and expected loss amounts3 for one or more IRB exposure classes may apply the standardised approach in accordance with this rule.3(2) A firm may apply the standardised approach to the IRB exposure class referred to in BIPRU 4.3.2 R (1) (Sovereigns) where the number of material counterparties is limited and it would be unduly burdensome
In addition to complying with BIPRU 4.3.54 R (Data maintenance) a firm must collect and store:(1) data used in the process of allocating exposures to grades or pools;(2) data on the estimated PDs, LGDs and conversion factors associated with grades or pools of exposures;(3) the identity of obligors and exposures that defaulted;(4) for defaultedexposures, data on the grades or pools to which the exposure was assigned over the year prior to default and the realised outcomes on LGD
For recognised guarantors the same requirements as for obligors as set out in BIPRU 4.3.43 R - BIPRU 4.3.48 R (Assignment to grades and pools), BIPRU 4.4.11 R - BIPRU 4.4.18 R and BIPRU 4.4.51 R (Assignment of exposures and rating systems), BIPRU 4.5.6 R (Assignment of exposures) and BIPRU 4.6.11 R and BIPRU 4.6.14 R (Assignment of exposures and rating systems) apply.[Note: BCD Annex VII Part 4 point 99]
(1) The appropriate regulator will only grant an IRB permission if it is satisfied that the firm's systems for the management and rating of credit risk exposures are sound and implemented with integrity and, in particular, that they meet the standards in BIPRU 4.2.2 R in accordance with the minimum IRB standards.(2) Under BIPRU 4.2.11 R, a firm applying for an IRB permission is required to demonstrate that it has been using for the IRB exposure classes in question rating systems
A firm calculating risk weighted exposure amounts in accordance with the IRB approach must disclose the following information:(1) the scope of the firm'sIRB permission;(2) an explanation and review of:(a) the structure of internal rating systems and relation between internal and external ratings;(b) the use of internal estimates other than for calculating risk weighted exposure amounts in accordance with the IRB approach;(c) the process for managing and recognising credit risk