The classification in binding tariff information may be applied on the conditions laid down in paragraph 6, only for the purpose of: - determining import or export duties, - calculating export refunds and any other amounts granted for imports or exports as part of the common agricultural policy, - using import, export or advance-fixing certificates which are submitted when formalities are carried out for acceptance of the customs declaration concerning the goods in question, provided that such certificates were issued on the basis of the information concerned.