Communications and Multimedia 53 Register of determinations 57. The Commission shall maintain a register of all determinations made by the Commission, including any written instrument modifying, varying or revoking a determination, in accordance with Chapter 6 of this Part. Chapter 3 Inquiry Inquiry by the Commission 58.  (1)  The Commission shall, in response to a Ministerial direction, hold a public inquiry on any matter of a general nature which relates to the administration of this Act or its subsidiary legislation which will serve the objects of this Act. (2)  The Commission may hold a public inquiry under subsection (1)— (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. Combining two or more inquiries 59. The Commission may combine two or more inquiries into a single inquiry. Conduct of an inquiry 60. (1) An inquiry under this Part is to be conducted as and when the Commission thinks fit. (2) The Commission may, for the purposes of an inquiry, exercise any or all of its investigation and information-gathering powers under Chapters 4 and 5 of this Part.