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13.

A credit institution shall ensure that the numerator and denominator of α are computed in a consistent fashion with respect to the modelling methodology, parameter specifications and portfolio composition. The approach used shall be based on the credit institution's internal capital approach, be well documented and be subject to independent validation. In addition, credit institutions shall review their estimates on at least a quarterly basis, and more frequently when the composition of the portfolio varies over time. Credit institutions shall also assess the model risk.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-09 · Text as adopted (Official Journal); later amendments are not incorporated in this text.