Article 4

The producer or producers' organization referred to in Article 3 (1) shall issue to the processor, at the time of each sale, a written attestation which shall include the name of the vendor, the name of the purchaser, the quantity and the price of products covered by the sale, and shall state that this quantity is part of the eligible quantity allocated to the producer or producers' organization in accordance with Article 3 (1).

The producer or producers' organization in question shall forward a copy of this attestation without delay to the Member State which fixed the eligible quantity.

Before the allowance is paid, the Member State in which the producer or producers' organization selling the product is established shall check that the aggregate of the quantities sold under each attestation does not exceed the eligible quantity allocated to the producer or producers' organization in question for the marketing year concerned.

Where the product is processed in a Member State other than that in which the vendor of the product is established, the Member State in which processing takes place shall forward each month to the Member State where the vendor of the product is established, with a view to the check referred to in paragraph 2, a list of the attestations which it received in the previous month in accordance with Article 5. The check shall be made immediately on receipt of the list in question and the outcome thereof shall be notified without delay to the Member State which had the check carried out.

In cases where the Member State carrying out the check referred to in paragraph 2 is unable to reach a final decision on a given attestation, this Member State shall request the producer or producers' organization which issued the attestation in question to justify the latter within a period not exceeding one month.