All banks must report immediately to the CBB any material losses as soon as the bank becomes aware of them. This notification requirement is separate from notifications for loan write-offs (see BR 5.2.3) or frauds (see above), but refers to losses caused by external events (e.g. falls in stock markets) or internal control failures. In this context 'material' would mean: a loss which exceeds 5% of net earnings in a given quarter; or a loss which reduces the bank's capital adequacy by more than 1%; or a loss which reduces total assets by more than 1%.