1. An external credit assessment may be used to determine the risk weight of an exposure in accordance with Article 80 only if the ECAI which provides it has been recognised as eligible for those purposes by the competent authorities (‘an eligible ECAI for the purposes of this Subsection).

2. Competent authorities shall recognise an ECAI as eligible for the purposes of Article 80 only if they are satisfied that its assessment methodology complies with the requirements of objectivity, independence, ongoing review and transparency, and that the resulting credit assessments meet the requirements of credibility and transparency. For those purposes, the competent authorities shall take into account the technical criteria set out in Annex VI, Part 2.

3. If an ECAI has been recognised as eligible by the competent authorities of a Member State, the competent authorities of other Member States may recognise that ECAI as eligible without carrying out their own evaluation process.

4. Competent authorities shall make publicly available an explanation of the recognition process, and a list of eligible ECAIs.

1. The competent authorities shall determine, taking into account the technical criteria set out in Annex VI, Part 2, with which of the credit quality steps set out in Part 1 of that Annex the relevant credit assessments of an eligible ECAI are to be associated. Those determinations shall be objective and consistent.

2. When the competent authorities of a Member State have made a determination under paragraph 1, the competent authorities of other Member States may recognise that determination without carrying out their own determination process.

1. The use of ECAI credit assessments for the calculation of a credit institution's risk‑weighted exposure amounts shall be consistent and in accordance with Annex VI, Part 3. Credit assessments shall not be used selectively.

Subsection 2

Internal Ratings Based Approach

1. In accordance with this Subsection, the competent authorities may permit credit institutions to calculate their riskweighted exposure amounts using the Internal Ratings Based Approach (‘IRB Approach’). Explicit permission shall be required in the case of each credit institution.

2. Permission shall be given only if the competent authority is satisfied that the credit institution's systems for the management and rating of credit risk exposures are sound and implemented with integrity and, in particular, that they meet the following standards in accordance with Annex VII, Part 4:

(a) the credit institution's rating systems provide for a meaningful assessment of obligor and transaction characteristics, a meaningful differentiation of risk and accurate and consistent quantitative estimates of risk;

(b) internal ratings and default and loss estimates used in the calculation of capital requirements and associated systems and processes play an essential role in the risk management and decision-making process, and in the credit approval, internal capital allocation and corporate governance functions of the credit institution;

(c) the credit institution has a credit risk control unit responsible for its rating systems that is appropriately independent and free from undue influence;

(d) the credit institution collects and stores all relevant data to provide effective support to its credit risk measurement and management process; and

(e) the credit institution documents its rating systems and the rationale for their design and validates its rating systems.

Where an EU parent credit institution and its subsidiaries or an EU parent financial holding company and its subsidiaries use the IRB Approach on a unified basis, the competent authorities may allow minimum requirements of Annex VII, Part 4 to be met by the parent and its subsidiaries considered together.

3. A credit institution applying for the use of the IRB Approach shall demonstrate that it has been using for the IRB exposure classes in question rating systems that were broadly in line with the minimum requirements set out in Annex VII, Part 4 for internal risk measurement and management purposes for at least three years prior to its qualification to use the IRB Approach.

4. A credit institution applying for the use of own estimates of LGDs and/or conversion factors shall demonstrate that it has been estimating and employing own estimates of LGDs and/or conversion factors in a manner that was broadly consistent with the minimum requirements for use of own estimates of those parameters set out in Annex VII, Part 4 for at least three years prior to qualification to use own estimates of LGDs and/or conversion factors.

5. If a credit institution ceases to comply with the requirements set out in this Subsection, it shall either present to the competent authority a plan for a timely return to compliance or demonstrate that the effect of non-compliance is immaterial.

6. When the IRB Approach is intended to be used by the EU parent credit institution and its subsidiaries, or by the EU parent financial holding company and its subsidiaries, the competent authorities of the different legal entities shall cooperate closely as provided for in Articles 129 to 132.

1. Without prejudice to Article 89, credit institutions and any parent undertaking and its subsidiaries shall implement the IRB Approach for all exposures.

Subject to the approval of the competent authorities, implementation may be carried out sequentially across the different exposure classes, referred to in Article 86, within the same business unit, across different business units in the same group or for the use of own estimates of LGDs or conversion factors for the calculation of risk weights for exposures to corporates, institutions, and central governments and central banks.

In the case of the retail exposure class referred to in Article 86, implementation may be carried out sequentially across the categories of exposures to which the different correlations in Annex VII, Part 1, points 10 to 13 correspond.

2. Implementation as referred to in paragraph 1 shall be carried out within a reasonable period of time to be agreed with the competent authorities. The implementation shall be carried out subject to strict conditions determined by the competent authorities. Those conditions shall be designed to ensure that the flexibility under paragraph 1 is not used selectively with the purpose of achieving reduced minimum capital requirements in respect of those exposure classes or business units that are yet to be included in the IRB Approach or in the use of own estimates of LGDs and/or conversion factors.

3. Credit institutions using the IRB Approach for any exposure class shall at the same time use the IRB Approach for the equity exposure class.

4. Subject to paragraphs 1 to 3 of this Article and Article 89, credit institutions which have obtained permission under Article 84 to use the IRB Approach shall not revert to the use of Subsection 1 for the calculation of risk-weighted exposure amounts except for demonstrated good cause and subject to the approval of the competent authorities.

5. Subject to paragraphs 1 and 2 of this Article and Article 89, credit institutions which have obtained permission under Article 87(9) to use own estimates of LGDs and conversion factors, shall not revert to the use of LGD values and conversion factors referred to in Article 87(8) except for demonstrated good cause and subject to the approval of the competent authorities.

1. Each exposure shall be assigned to one of the following exposure classes:

(a) claims or contingent claims on central governments and central banks;

(b) claims or contingent claims on institutions;

(c) claims or contingent claims on corporates;

(d) retail claims or contingent retail claims;

(e) equity claims;

(f) securitisation positions; or

(g) other non credit-obligation assets.

2. The following exposures shall be treated as exposures to central governments and central banks:

(a) exposures to regional governments, local authorities or public sector entities which are treated as exposures to central governments under Subsection 1; and

(b) exposures to Multilateral Development Banks and International Organisations which attract a risk weight of 0 % under Subsection 1.

3. The following exposures shall be treated as exposures to institutions:

(a) exposures to regional governments and local authorities which are not treated as exposures to central governments under Subsection 1;

(b) exposures to Public Sector Entities which are treated as exposures to institutions under the Subsection 1; and

(c) exposures to Multilateral Development Banks which do not attract a 0 % risk weight under Subsection 1.

4. To be eligible for the retail exposure class referred to in point (d) of paragraph 1, exposures shall meet the following criteria:

(a) they shall be either to an individual person or persons, or to a small or medium sized entity, provided in the latter case that the total amount owed to the credit institution and parent undertakings and its subsidiaries, including any past due exposure, by the obligor client or group of connected clients, but excluding claims or contingent claims secured on residential real estate collateral, shall not, to the knowledge of the credit institution, which shall have taken reasonable steps to confirm the situation, exceed EUR 1 million;

(b) they are treated by the credit institution in its risk management consistently over time and in a similar manner;

(c) they are not managed just as individually as exposures in the corporate exposure class; and

(d) they each represent one of a significant number of similarly managed exposures.

The present value of retail minimum lease payments is eligible for the retail exposure class.

5. The following exposures shall be classed as equity exposures:

(a) non-debt exposures conveying a subordinated, residual claim on the assets or income of the issuer; and

(b) debt exposures the economic substance of which is similar to the exposures specified in point (a).

6. Within the corporate exposure class, credit institutions shall separately identify as specialised lending exposures, exposures which possess the following characteristics:

(a) the exposure is to an entity which was created specifically to finance and/or operate physical assets;

(b) the contractual arrangements give the lender a substantial degree of control over the assets and the income that they generate; and

(c) the primary source of repayment of the obligation is the income generated by the assets being financed, rather than the independent capacity of a broader commercial enterprise.

7. Any credit obligation not assigned to the exposure classes referred to in points (a), (b) and (d) to (f) of paragraph 1 shall be assigned to the exposure class referred to in point (c) of that paragraph.

8. The exposure class referred to in point (g) of paragraph 1 shall include the residual value of leased properties if not included in the lease exposure as defined in Annex VII, Part 3, paragraph 4.

9. The methodology used by the credit institution for assigning exposures to different exposure classes shall be appropriate and consistent over time.