Communications 2003 No. 19 A 311 Commission may issue a direction under subsection (1) of this section requiring the person to take specified action directed towards ensuring that the person does not contravene or continue to contravene any of the conditions of his licence or any of the provisions of this Act or its subsidiary legislation. (5) The Commission shall give the person written notice of its direction not later than 30 days from the date the decision was made on the direction and the person shall comply with the direction issued by the Commission. 54. The Commission may modify, vary or revoke a direction and the procedure set out in section 53 of this Act shall apply mutatis mutandis in respect of any modification, variation or revocation of a direction. Modification of direction. 55. Without prejudice to any other provision of this Act or a licence condition, a person who fails to comply with a direction of the Commission shall be liable to the payment of fine to the Commission in such amount as the Commission may at its discretion impose. Noncompliance with direction. 56. The Commission shall maintain a register of all directions issued by the Commission, including any written instruments modifying, varying or revoking a direction, in accordance with Part V of this Chapter. Register of directions. PART II—INQUIRY 57.—(1) The Commission may hold a public inquiry on any matter of a general nature that relates to the administration of this Act or its subsidiary legislation which will serve the objects of this Act. Inquiry. (2) Subject to subsection (3) of this section, the Commission may hold a public inquiry under subsection (1) of this section— (a) in response to a written request from a person ; or (b) on its own initiative, only if it is satisfied that the matter is of significant interest to either the public or to current or prospective licensees under this Act. (3) The Commission shall hold a public inquiry in all instances that it is mandatorily required to hold an inquiry under this Act or its subsidiary legislation. (4) The Commission may combine two or more inquiries into a single inquiry and an inquiry under this Chapter shall be conducted as and when the Commission deems fit. (5) The Commission may, for the purposes of an inquiry, exercise any or all of its investigation and information-gathering powers under Parts III and IV of this Chapter. 58.—(1) Subject to section 57 of this Act, if the Commission decides to hold a public inquiry, the Commission shall publish, in the manner that it deems appropriate, notice of— (a) the fact that it is holding the inquiry ; (b) the period during which the inquiry is to be held ; Public inquiry.