; (C) reflect community standards of care; (D) ensure quality of care and access to needed health care services; (E) be evidence based; (F) be sufficiently flexible to allow deviations from norms when justified on case-by-case bases; and (G) be evaluated and updated if necessary at least annually. (5) Website posting The medicare administrative contractor, Medicare Advantage plan, or prescription drug plan, respectively, shall make any current preauthorization requirements and restrictions readily accessible on its website to subscribers, health care providers, and the general public. This includes the written clinical criteria. Such requirements must be described in detail but also in easily understandable language. (6) Notice required for new requirements or restrictions If the medicare administrative contractor, Medicare Advantage plan, or prescription drug plan, respectively, decides to implement a new preauthorization requirement or restriction, or amend an existing requirement or restriction, the medicare administrative contractor, Medicare Advantage plan, or prescription drug plan shall provide contracted health care providers written notice of the new or amended requirement or amendment no less than 60 days before the requirement or restriction is implemented and shall ensure that the new or amended requirement has been updated on the medicare administrative contractor, Medicare Advantage plan, or prescription drug plan’s website. (7) Availability of determinations The medicare administrative contractor, Medicare Advantage plan, or prescription drug plan, respectively, utilizing preauthorization shall make statistics available regarding preauthorization approvals and denials for coverage or payment of health care services under the Medicare program under title XVIII of the Social Security Act or such plan on their website in a readily accessible format. The medicare administrative contractor, Medicare Advantage plan, or prescription drug plan shall include categories for— (A) physician specialty