; U.S. city average) for the 12-month period ending with June of the year before such subsequent plan year. (iv) Consultation In determining a price for a specified drug under clause (ii), the Secretary may consult with the Comptroller General, the Medicare Payment Advisory Commission, the Medicaid and CHIP Payment and Access Commission, or other outside, independent experts. (C) No change in rules for formularies (i) In general Nothing in subparagraph (A) or (B) shall be construed to authorize the Secretary to establish or require a particular formulary. (ii) Construction Clause (i) shall not be construed as affecting the Secretary’s authority to ensure appropriate and adequate access to covered part D drugs under prescription drug plans and under MA–PD plans, including compliance of such plans with formulary requirements under section 1860D–4(b)(3). (D) Construction Nothing in this paragraph shall be construed as— (i) preventing the sponsor of a prescription drug plan, or an organization offering an MA–PD plan, from obtaining a discount or reduction of the price for a covered part D drug described in subparagraph (A) below the price negotiated under such subparagraph or determined under subparagraph (B)