These rules must apply both to the recovery of claims resulting from the various measures which form part of the system of total or partial financing of the European Agricultural Guidance and Guarantee Fund and to the recovery of agricultural levies and customs duties within the meaning of Article 2 of Decision 70/243/ECSC, EEC, Euratom of 21 April 1970 on the replacement of financial contributions from Member States by the Communities' own resources (5), and of Article 128 of the Act of Accession.