58.—(1) The National Assembly, a local authority or the Agency must, if so requested in writing, supply to any person who presents products under regulation 18, or to any organisation representing such persons, details of the calculations which he or she or it uses to determine charges for veterinary checks and must take into account any representations made by such a person or organisation in determining such charges.
(2) If requested in writing so to do by the National Assembly or the Agency, a local authority must provide the National Assembly or the Agency, as the case may be, with such information as it may require relating to the calculation of charges for veterinary checks, and with copies of any written representations made by persons or organisations referred to in paragraph (1).