1.The end-users of data shall:
(a)use the data only for the purpose stated in their request in accordance with Article 18;
(b)duly acknowledge the data sources;
(c)be responsible for correct and appropriate use of the data with regard to scientific ethics;
(d)inform the Commission and the Member States concerned of any suspected problems with the data;
(e)provide the Member States concerned and the Commission with references to the results of the use of the data;
(f)not forward the requested data to third parties without consent with the Member State concerned;
(g)not sell the data to any third party.
2.The Member States shall inform the Commission of any non-compliance by end-users.
3.Where an end-user fails to comply with any of the requirements set out in paragraph 1, the Commission may allow the Member State concerned to limit or refuse access to the data to that end-user.