(Article 25(5) of Directive 2004/39/EC)
1. The reports of transactions in financial instruments shall be made in an electronic form except under exceptional circumstances, when they may be made in a medium which allows for the storing of the information in a way accessible for future reference by the competent authorities other than an electronic form, and the methods by which those reports are made shall satisfy the following conditions:
(a) they ensure the security and confidentiality of the data reported;
(b) they incorporate mechanisms for identifying and correcting errors in a transaction report;
(c) they incorporate mechanisms for authenticating the source of the transaction report;
(d) they include appropriate precautionary measures to enable the timely resumption of reporting in the case of system failure;
(e) they are capable of reporting the information required under Article 13 in the format required by the competent authority and in accordance with this paragraph, within th
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