The accounting officer is required to use all due diligence to ensure the recovery of all the resources of the High Council. Revenue shall be collected by the Accounting Officer either spontaneously or in execution of the President’s instructions. With the exception of the contribution mentioned in II of Article L. 821-5 and the contributions mentioned in I and II of Article L. 821-6-1, the recovery of which comes under the enforceable statement procedure, the accounting officer sends the corresponding invoices to the debtors and receives their payments. All rights acquired during a financial year must be taken into account in respect of that year.