·\o'~~. 1: ._.lW, •.•• : :_~':', "('.' ~ ~ ••• ".~ .••••••• '{l"· .. . . ~ .. ..... ..... :.. . -, _'.: i :::. ;. : : :.." . ARTICLE 14.- (1) The backup copy shall be opened in one of the following cases: a) When a bid received within the prescribed period, could not be opened; b) When a malicious programme is detected in a bid submitted via the electronic channel; trace of such malicious programme shall be preserved; c) When a bid duly transmitted via the electronic channel is not received within the prescribed period, but the backup copy was deposited before the bids submission closing date. (2) If the backup copy is opened, the one transmitted via the electronic channel shall no longer be opened. ARTICLE 15.- ln addition to being published on the dematerialisation platform, changes made during the public procurement process shall be communicated directly to competing bidders, through alert mechanisms. CHAPTERIII RECEIPT, OPENING, REVIEW OF SIDS, AWARD, SIGNING AND NOTIFICATION OF CONTRACTS SECTION 1 RECEIPT AND OPENING OF BIDS ARTICLE 16.- Bids submitted via the electronic channel shall be the subject of an acknowledgement of receipt message, sent by the administrator of the dematerialisation platform. ARTICLE 17.- Before being transmitted to the Public Tenders Board for subsequent opening and review, bids submitted via the electronic channel shall be decrypted by the Contracting Authority. Decrypted bids shall be legible only to the competent tenders board: ARTICLE 18.- The opening of bids transmitted via the electronic channel and those submitted in hard copy shall take place during the same session. ARTICLE 19.- ln order to open bids, access codes shall be issued to the Public Tenders Board, in accordance with the terms and conditions for the use of the dematerialisation platform. ARTICLE 20.- ln case of technical difficulties caused by the unavailability of the dematerialisation platform or any other malfunctioning preventing the opening of bids, the bids opening session shall be postponed to a date to be determined by the Public Tenders Board. . SERVICES DU PREMI~R ~INISTRE SECRÉTARIAT GENERAL DIRECTION DES AFFAIRES ~DMIMSTRATIVE8 ET DES lIQUETES 5 COPIE CERTI~ÉE CONFORME