Information and Communication Technologies [No. 15 of 2009 151 comply with the principles stipulated under section fifty; are cost oriented; and (c) meet such other criteria as the Authority may consider relevant for purposes of this Act. (4) The Authority may request for additional information from a licensee and, where it does so, the period referred to under paragraph (a) of subsection (2) shall commence from the date of the submission of the additional information. 49. (1) The Authority may forbear from applying to a licensee Forbearance or a class of licensees, in any or all of the licensees or their geographic markets, any provision of this Part, where the Authority considers that application of the provision is not necessary for the protection of consumers or the promotion of competition amongst licensees; and forbearance from applying the provision is consistent with the objects of this Act. The Authority shall, where it decides to forbear from applying any provision, immediately, publish a notice of forbearance in the Gazette, setting out the details of and the reasons for, the decision, and inviting interested parties to make submissions in relation to that decision within a period specified in that notice, but in any event, not shorter than thirty days from the date of publication of the notice. The Authority shall, before issuing its final decision take into account any representation that it receives in accordance with subsection (2). 50. (1) A holder of an individual licence shall not impose any tariff or charge for the provision of any service unless the Authority approves the tariff rates and charges in accordance with the provisions of this Part. A holder of an individual license shall only provide services at the tariff rates and charges approved by the Authority. A holder of an individual license shall publish the tariff rates charged to customers for any service and any variations thereto, as may be approved by the Authority. (4) The tariff rates established by a holder of an individual licence under subsection (1) shall be based on such conditions as the Authority may determine in accordance with the following principles: Approval of tariffs and charges of holders of individual licences