1. The articles referred to in Article 51 and the scientific instruments or apparatus which have been admitted duty-free in accordance with the conditions laid down in Articles 53, 54 and 56 may not be lent, hired out or transferred, whether for a consideration or free of charge, without prior notification to the competent authorities.
2. Should an article be lent, hired out or transferred to an establishment or organization entitled to benefit from relief pursuant to Article 51 or 52 (2), the relief shall continue to be granted provided the establishment or organisation uses the article, instrument or apparatus for purposes which confer the right to such relief.
In other cases, loan, hiring out or transfer shall be subject to prior payment of import duties, at the rate applying on the date of the loan, hiring out or transfer, on the basis of the type of goods and the customs value ascertained or accepted on that date by the competent authorities.]