# Regulation (EU) No 575/2013 of the European Parliament and of the Council of 26 June 2013 on prudential requirements for credit institutions and investment firms and amending Regulation (EU) No 648/2012 (Text with EEA relevance), Article 136: Mapping of ECAI's credit assessments

Extent: E+W+S+N.I.

1. The PRA may make technical standards to specify for all ECAIs, with which of the credit quality steps set out in Section 2 the relevant credit assessments of the ECAI correspond ( ‘ mapping ’ ). Those determinations shall be objective and consistent.
...
2. When determining the mapping of credit assessments, the PRA shall comply with the following requirements:
(a) in order to differentiate between the relative degrees of risk expressed by each credit assessment, the PRA shall consider quantitative factors such as the long-term default rate associated with all items assigned the same credit assessment. For recently established ECAIs and for those that have compiled only a short record of default data, the PRA shall ask the ECAI what it believes to be the long-term default rate associated with all items assigned the same credit assessment;
(b) in order to differentiate between the relative degrees of risk expressed by each credit assessment, the PRA shall consider qualitative factors such as the pool of issuers that the ECAI covers, the range of credit assessments that the ECAI assigns, each credit assessment meaning and the ECAI's definition of default;
(c) the PRA shall compare default rates experienced for each credit assessment of a particular ECAI and compare them with a benchmark built on the basis of default rates experienced by other ECAIs on a population of issuers that present an equivalent level of credit risk;
(d) where the default rates experienced for the credit assessment of a particular ECAI are materially and systematically higher then the benchmark, the PRA shall assign a higher credit quality step in the credit quality assessment scale to the ECAI credit assessment;
(e) where the PRA has increased the associated risk weight for a specific credit assessment of a particular ECAI, and where default rates experienced for that ECAI's credit assessment are no longer materially and systematically higher than the benchmark, the PRA may restore the original credit quality step in the credit quality assessment scale for the ECAI credit assessment.
3. The PRA may make technical standards to specify the quantitative factors referred to in point (a), the qualitative factors referred to in point (b) and the benchmark referred to in point (c) of paragraph 2.
...

---
Source: https://www.legislation.gov.uk/eur/2013/575/article/136 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-575/article-136
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.