Banks are required to have in place a process to analyse exceptions identified through the back-testing of specific risk. This process is intended to serve as the fundamental way in which banks correct their models of specific risk in the event they become inaccurate. There will be a presumption that models that incorporate specific risk are "unacceptable" if the results at the sub-portfolio level produce a number of exceptions commensurate with the Red Zone⁸⁶. Banks with "unacceptable" specific risk models are expected to take immediate action to correct the problem in the model and to ensure that there is a sufficient capital buffer to absorb the risk that, the back-test showed, had not been adequately captured.

⁸⁶ As defined in the Basel Committee's document titled "Supervisory framework for the use of back-testing in conjunction with the internal models approach to market risk capital requirements".