1. 1. Where it is established to the satisfaction of the customs authorities that goods have been repaired free of charge, either because of a contractual or statutory obligation arising from a guarantee or because of a manufacturing or material defect, they shall be granted total relief from import duties.
2. 2. Paragraph 1 shall not apply where account was taken of the manufacturing or material defect at the time when the goods in question were first released for free circulation.