The external auditor must carry out their validation/review procedures, at a minimum, once every year. Based on the above procedures, the external auditor must make a report, in writing, on the accuracy of the conventional bank licensee's models, including all significant findings of their work. The report must be addressed to the senior management and/or the board of directors of the conventional bank licensee, and a copy of the report must be made available to the CBB. The mandatory annual review by the external auditor must be carried out during the third quarter of the calendar year, and the CBB expects to receive their final report by 30 September of each year. The results of additional validation procedures carried out by the external auditor at other times during the year must be made available to the CBB promptly.