2. oral response to an enquiry; 3. copies on a paper-based data medium; 4. copies on a machine-readable data medium. (2) One or more of the forms covered under Paragraph (1) may be employed for access to public information. (3) Where the preferred form of granting access to public information is the one referred to in Item 4 of Paragraph (1), the technical parameters for recording the information shall furthermore be specified. (4) Any sight-, hearing- or speech-impaired persons may request access in aformat compatible with the communicative faculties thereof. Obligation to Comply with Preferred Form of Access Article 27. (1) The public authorities shall be obligated to comply with the preferred form in which access to public information is requested except in the cases where: 1. the said form is technically impracticable; 2. the said form involves an unjustified increase in the costs of disclosure; 3. the said form leads to a possibility of wrongful processing of the said information or to infringement of intellectual property rights. (2) In the cases covered under Paragraph (1), the information shall be disclosed in a form determined by the competent public authority. Section II Consideration of Applications and Granting Access to Public Information Consideration of Applications for Access Article 28. (1) Any application for access to public information shall be considered as soon as practicable, and in any case not later than fourteen days after the date of registration of the application. (2) Within the time limit referred to in Paragraph (1), the public authorities or persons expressly designated thereby shall make a decision to grant or to refuse access to the public information requested and shall notify the applicant in writing of the decision thereof. Specification of Application for Access Article 29. (1) Should it be unclear exactly what information is requested,or should the application be formulated in rather general terms, the applicant shall be notified and shall have the right to specify the subjectof the public information requested. The time limit referred to in Article 28 (1) herein shall begin to run from the date of specification of the subject of the public information requested. (2) Should the applicant fail to specify the subject of the public information requested within thirty days, the application shall be left without consideration. Permissible Extension of Time Limit for Granting of Access