(3) The public authority shall pass a decision specifying when the beneficiary is to be granted access to the requested information, by applying the provision of Article 16(1) of this Act. (4) The public authority shall deny the request by a decision if it has no information and has no knowledge of its whereabouts. (5) The public authority shall deny the request by a decision if: 1) the criteria stipulated in Article 15(1) of this Act have been met; 2) the criteria stipulated in Article 15(2) and (3), in conjunction with Article 16(1) of this Act, have been met; 3) it establishes that there are no grounds for amending or correcting the information provided, as referred to in Article 24 of this Act; 4) the requested information is not deemed to constitute the information within the meaning of Article 5(1)(3) of this Act. Information amendment and correction Article 24 (1) Any beneficiary believing that the information provided at his or her request is inaccurate or incomplete, he or she may request its amendment or correction within 15 days of receiving such information. (2) The public authority shall decide on the request for amendment or correction of the information within 15 days of receiving the request, in accordance with the provisions of Article 23 of this Act. Appeal Article 25 (1) A decision of the public authority may be subject to appeal to be lodged with the Commissioner within 15 days from the day of decision delivery. (2) An appeal may also be lodged where the public authority fails, in the prescribed time limit, to decide on the request of the submitting party. (3) The Commissioner shall pass a decision on the appeal and deliver it the party through a first-instance body, no later than 30 days from the day on which a valid appeal was lodged. (4) In the appeal proceedings against the decision on the restriction of information referred to in Article 15(2-3) of this Act, public authorities are required to provide access by the Commissioner to the information which is the subject matter of the proceedings. The Commissioner shall request the opinion of the Office of the National Security Council in respect of the information referred to in Article 15(2)(1) of this Act, in accordance with the act regulating data confidentiality. 12