Recital 6

(6)As the costs of the supervision tasks depend on the intensity of the supervision, the fees between issuers of significant ARTs and issuers of significant EMTs are not expected to be fully linear. Therefore, in accordance with the principle of proportionality, an activities-based estimates and monitoring system should be established that allows for the estimated costs to be attributed, respectively, to issuers of significant ARTs and issuers of significant EMTs,