Article 5
1. The Member States shall ensure that the conditions granting entitlement to payment of the aid are fulfilled. 2. The contractor shall make available to the national authorities responsible for verifying execution of the measure any documentation permitting in particular the following particulars of products placed in private storage to be verified: (a) ownership at the time of entry into storage; (b) the origin and date of manufacture of the cheeses; (c) the date of entry into storage; (d) presence in the store; (e) the date of removal from storage. 3. The contractor or, where applicable, the operator of the store shall keep stock accounts available at the store, covering: (a) identification, by contract number, of the products placed in private storage; (b) the dates of entry into and removal from storage; (c) the number of cheeses and their weight shown for each lot; (d) the location of the products in the store. 4. Products stored must be easily identifiable and must be identified individually by contract. A special mark shall be affixed to cheese covered by contract. 5. Without prejudice to Article 2 (1) (d), on entry into storage, the competent bodies shall conduct checks in particular to ensure that products stored are eligible, for the aid and to prevent any possibility of substitution of products during storage under contract. 6. The national authorities responsible for controls shall undertake: (a) an unannounced check to see that the products are present in the store. The sample concerned must be representative and must correspond to at least 10 % of the overall quantity under contract for a private storage aid measure. Such checks must include, in addition to an examination of the accounts referred to in paragraph 3, a physical check of the weight and type of product and their identification. Such physical checks must relate to at least 5 % of the quantity subject to the unannounced check; (b) a check to see that the products are present at the end of the storage period under contract. 7. Checks conducted pursuant to paragraphs 5 and 6 must be the subject of a report stating: - the date of the check, - its duration, - the operations conducted. The report on checks must be signed by the official responsible and countersigned by the contractor or, where applicable, by the store operator. 8. In the case of irregularities affecting at least 5 % of the quantities of products subject to the checks the latter shall be extended to a larger sample to be determined by the competent body. The Member States shall notify such cases to the Commission within four weeks. 9. The Member States may provide that the costs of checks will be borne partly or fully by the contractor.