h) Provisions for amendment procedures including how Access Seekers will be informed about proposed changes to the terms and condition of the Access Services, and timeframe for such changes. PART SIX CHARGES FOR COLLOCATION AND INFRASTRUCTURE SHARING 15. Charges for Access Services 1) Access Providers shall not offer more favorable rates or terms to affiliate companies than offered to other Access Seekers. 2) Access Providers shall offer Access Services at reasonable rates that are not less favorable than those provided by other Access Providers to itself. 3) Charges for Access Services shall: a) Be in accordance with the principles set out in Article 6 of this Directive; b) Be sufficiently unbundled to ensure that an Access Seeker is not required to pay for access to infrastructure not strictly required for the services requested; and, c) Be negotiated and agreed between the parties pursuant to Sub-Articles 44(3) and 44(8) of the Proclamation. 4) Charges for Access Services shall itemize and separately account for: a) Fixed, one-off charges for the establishment and implementation of Access Services arrangements; b) Periodic rental charges for on-going use of network infrastructure or facilities; and, c) Variable charges for supplementary services. 5) Without prejudice to Sub-Article 3(c) of this Article, the Authority shall have the power to determine the charges for Access Services pursuant to Article 44 of the Proclamation. 16. Accounting Separation 1) Where the Authority has determined that an Access Provider has SMP in a relevant market for Access Services, and the Access Provider also provides Retail Telecommunications Services, the Access Provider shall keep separate accounts, as if the Access Services were in fact carried out by a legally independent company, so as to identify all elements of cost and revenue attributable to such services. 2) The Authority may, at its own discretion, adopt directives prescribing how the account separation referred to in Sub-Article (1) of this Article shall be implemented. PART SEVEN ALLOCATION, RESERVATION OF CAPACITY, AVAILABILITY OF ACCESS 17. Allocation and Reservation of Capacity 1) Requests for Access Services shall be considered and granted by an Access Provider on a first-come, first-served basis. 10