"Regulations may provide for the zero-rating of supplies of goods, or of such goods as may be specified in the regulations, in cases where— (a) the Commissioners are satisfied that the goods have been or are to be exported to such places as may be specified in the regulations, and (b) such other conditions, if any, as may be specified in the regulations or the Commissioners may impose are fulfilled."
“Where the Commissioners are satisfied that- (a) a supply of goods by a taxable person involves their removal from the United Kingdom, (b) the supply is to a person in another member State, (c) the goods have been removed to another member State, and (d) the goods are not goods in relation to whose supply the taxable person has opted, pursuant to section 50A of the Act, for VAT to be charged by reference to the profit margin on the supply, The supply, subject to such conditions as they may impose, shall be zero-rated.”
"53 … [it was] for the national court to carry out an overall assessment of all the facts and circumstances of the case in order to establish whether Mecsek-Gabona had acted in good faith and taken every step which could reasonably be asked of it to satisfy itself that the transaction which it had carried out had not resulted in its participation in tax fraud … 55 … [a tax authority is permitted to refuse] to grant a vendor the right to the VAT exemption for an intra-Community supply, provided that it has been established, in the light of objective evidence, that the vendor has failed to fulfil its obligations as regards evidence, or that it knew or should have known that the transaction which it carried out was part of a tax fraud committed by the purchaser, and that it had not taken every reasonable step within its power to prevent its own participation in that fraud."