As a minimum—
(A) |
a bank shall have in place board approved policies and procedures in order to determine— |
(i) |
the circumstances under which external data such as public data and/or pooled industry data should be used in addition to internal data; |
(ii) |
the methodologies that should be used in order to incorporate the relevant external data, such as scaling or qualitative adjustments, |
provided that the bank's operational risk measurement system shall incorporate relevant external data when there is reason to believe that the bank is exposed to infrequent, yet potentially severe, losses.
(B) |
the external data referred to in item (A) above shall include information in respect of— |
(i) |
the actual loss amounts; |
(ii) |
the scale of business operations where the loss event occurred; |
(iii) |
the causes of and circumstances surrounding the loss event; |
(iv) |
any other information that would assist the bank in assessing the relevance of the loss event and/or data; |
(C) |
a bank's policies and procedures relating to the use of external data shall be subject to regular independent review and appropriate internal audit coverage. |