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16. IRB Approach: Minimum Requirements to Use IRB Approach

No: 44047144 Date(g): 27/12/2022 | Date(h): 4/6/1444 Status: In-Force
16.1This chapter presents the minimum requirements for entry and on-going use of the internal ratings-based (IRB) approach. The minimum requirements are set out in the following 11 sections:
 
 (1)Composition of minimum requirements
 
 (2)Compliance with minimum requirements
 
 (3)Rating system design
 
 (4)Risk rating system operations
 
 (5)Corporate governance and oversight
 
 (6)Use of internal ratings
 
 (7)Risk quantification
 
 (8)Validation of internal estimates
 
 (9)Supervisory loss-given-default (LGD) and exposure at default (EAD) estimates
 
 (10)Requirements for recognition of leasing
 
 (11)Disclosure requirements
 
16.2The minimum requirements in the sections that follow cut across asset classes. Therefore, more than one asset class may be discussed within the context of a given minimum requirement.