25.2 There must be note in copy of electronic document on paper that it is copy of corresponding electronic document. 25.3 Copy of electronic document in another material object differed from paper or on paper but not confirmed properly is not considered its copy. 25.4 Origin of electronic document and its copy on paper meeting requirements of Article 25.1 of this law have equal validity. Chapter V Electronic document circulation Article 26. Bases of formation of electronic document circulation 26.1 Use and circulation of electronic document is implemented upon legislation of the Republic of Azerbaijan or contracts signed between electronic document circulation subjects. 26.2 Legislation of the Republic of Azerbaijan or contract signed set rule of exchange of electronic documents and technical and organizational requirements (form of exchange of documents, procedure of verification of them, time, form etc. considered acceptable for confirming the acceptance of document) related to that. 26.3 Documentation of electronic document circulation is implemented upon clerical standards and rules set by legislation of the Republic of Azerbaijan. 26.4 Use and circulation of electronic document in corporate information system is regulated by internal normative acts of the system. Article 27. Sending and receiving electronic document 27.1 Electronic document sent personally, as well by person empowered to act on behalf of another person or automatically transmitted by information system operating on selfprogrammed manner is considered sent by sender. 27.2 If contract between parts does not set other cases, as a result of confirmation of authenticity of electronic document received the receiver makes sure that it is sent by sender and informs the sender in a way unambiguously confirming the acceptance by any means, including automatically. 27.3 In following cases receiver shall consider electronic document not sent by sender: 27.3.1 if it receives notice that electronic document has not been sent; 27.3.2 if electronic document authenticity is not confirmed; 27.3.3 as a result of verification of electronic document authenticity the receiver knew or had to know that electronic document received is automatic repeat of another document. 27.4 If contract between parts does not set other cases, electronic document is considered not received until sender receives confirmation by receiver. Confirmation shall include note on compliance of electronic document with technical requirements agreed between parts. 27.5 If confirmation is not received within time shown by sender or set by contract signed between parts, sender informs receivers of this and sets time for sending confirmation. 27.6 Article 27 of this law does not regulate relations linked to contents of electronic document and confirmation of acceptance, except relations concerning sending or receiving electronic document.