Article 73
1. Institutions or organisations referred to in Articles 67 and 68 which cease to fulfil the conditions giving entitlement to duty-free admission, or which are proposing to use articles admitted duty-free for purposes other than those provided for by those Articles shall so inform the competent authorities. 2. Articles remaining in the possession of institutions or organisations which cease to fulfil the conditions giving entitlement to relief shall be liable to the relevant import duties at the rate applying on the date on which those conditions cease to be fulfilled, on the basis of the type of goods and the customs value ascertained or accepted on that date by the competent authorities. 3. Articles used by the institution or organisation benefiting from the relief for purposes other than those provided for in Articles 67 and 68 shall be liable to the relevant import duties at the rate applying on the date on which they are put to another use, on the basis of the type of goods and the customs value ascertained or accepted on that date by the competent authorities.