g) To the extent that information provided by interested parties to the Authority during the course of this proceeding are confidential, the Authority shall use its reasonable efforts to protect the confidentiality of such information. 9) A Reference Offer shall include detailed terms and conditions of the Wholesale Roaming service provided, the technical standards, as well as standards for safety and security to be implemented by the provider of Wholesale Roaming. 10) A Reference Offer shall include provisions on how to modify the terms and conditions of service. 11) A Reference Offer shall include at least the following sections: a) Framework agreement; b) Description of the Wholesale Roaming services offered and related terms and conditions; c) Details of the National Roaming Coverage Areas; d) Technical specifications; e) Operational procedures including service provisioning, planning, and maintenance procedures; f) Commercial aspects including charges, payments, billing procedures, and terms and conditions; g) Service level agreement; h) Provisions for sharing information, as well as technical specifications for ancillary services; and, i) Provisions for amendment procedures. PART SIX CHARGES FOR WHOLESALE NATIONAL ROAMING SERVICES 17. Charges for Wholesale National Roaming Services 1) Charges for Wholesale Roaming shall: a) Be in accordance with the principles set out in Article 6(1) of this Directive; b) Be lawful in accordance with Article 45 of the Proclamation, this Directive and any applicable Directive adopted by the Authority; and, c) Not be anti-competitive in accordance with Article 48 of the Proclamation, Telecommunications Lawful Tariff Directive No. 8/2021, and the Telecommunications Competition Directive No. 9/2021 adopted by the Authority. 2) Lawful tariffs for Wholesale Roaming services shall be: a) Cost-oriented; and, b) Not unduly discriminatory. 3) Cost-oriented tariffs for Wholesale Roaming shall be in accordance with a forwardlooking incremental cost methodology; and the following principles shall apply to such methodology for Wholesale Roaming: 10