in writing confirming whether or not a proposal submitted in terms of subsection (2) is approved, and where the Authority has not so responded within such period, the proposal shall be deemed to have been approved by the Authority. (4) No amended or substituted tariff shal l come into oper ation before the expiry o f seven days following its approval by the Aut hority or the expiry of twenty-one days following the submission of a proposal in terms of subsection (2) to which no response has been received. (5) A licensee to whom this section applies shall publish his tariff by— (a) making it available for inspection at his principal places of business during normal business hours; and (b) promptly sending the relevant parts of it at the request of any consumer of his services. 45 Exemption from liability for Authority No liability shall attach to the Authority or to any empl oyee of the Authority or the Board or to a member of the Board or any committee of the Board for any loss o r damage sustained by any person as a result of the bona fide exercise or performance of any function which by or in terms of this Act is conferred or imposed upon the Authority or the Board. 46 Regulatory powers of the Minister (1) The Minister may, by regulation, order or notice, pr escribe matters that, by this Act, are required or permitted to be prescr ibed or that in the opinion of the Ministe r are necessary or convenient to be prescribed for carrying out or giving effect to this Act. (2) Without derogating from the generality of subsection (1), regulations, orders o r notices made in terms of subsection (1) may provide for— (a) the form, manner and period in which applications for licenses shall be made; (b) the form, manner and period in which complaints against licensees shall be dealt with; (c) the amount of the annual levy payable in terms of section thirty-two; (d) the manner in which monies held in the Broadcasting Fund established by section twenty-nine may be invested; (e) any further conditions to which any class of licence shall be subject; (f) further categories of broadcasting licences; (g) the fees to be paid for licences and the manner of their payment; (h) the prohibition, restriction or control of the importation, purchase an d sale of any apparatus capable of causing harmful interference; (h1) the registration with the broadcasting compa ny of dealers as defined in that section and the information to be supplied to the broadcasting company in connection with applications for registrations; [Paragraph (h1) inserted by s.10(e) of Act 29/2001 and further substituted by Act 6/2003 with effect from the 19th September, 2003.] (h2) the keeping of books, records and documents, the furnishing of returns and the supply of information to the Zimb abwe Broadcasting Corporation relating to dealings in receivers; [Paragraph (h2) inserted by s. 10(e) of Act 29/2001 and further substituted by Act 6/2003 with effect from the 19th September, 2003.] (h3) the collection and transmission to the Zimbabwe Broadcasting Corporation of the licence fees referred to in subsection (2) of section thirty-eight B; [Paragraph (h3) inserted by s.10(e) of Act 29/2001 and further substituted by Act 6/2003 with effect from the 19th September, 2003.] (h4) prohibiting the delivery of a receiver by a dealer referred to in paragraph (h1) in pursuance of the sale, exchange, hire or repair of the receiver to a person who is not authorised by a licence referred to in subsection (2) of section thirty-eight B to possess the receiver;