; or (II) the Secretary makes a written determination that the prior determination must be changed because an error has been identified. (iv) If the Secretary makes a written determination described in clause (iii)(II), the Secretary shall provide notice and a copy of the written determination to the person making the request under clause (i). (v) The disclosures required by this subparagraph are disclosures authorized by law, including for purposes of section 1905 of title 18, United States Code. . (b) Guidance (1) In general Not later than one year after the date of enactment of this Act, the Secretary of Health and Human Services shall issue draft guidance, or update guidance, describing how the Secretary will determine whether a drug is qualitatively and quantitatively the same as the listed drug (as such terms are used in section 505(j)(3)(H) of the Federal Food, Drug, and Cosmetic Act, as added by subsection (a)), including with respect to assessing pH adjusters. (2) Process In issuing guidance under this subsection, the Secretary of Health and Human Services shall— (A) publish draft guidance; (B) provide a period of at least 60 days for comment on the draft guidance; and (C) after considering any comments received and not later than one year after the close of the comment period on the draft guidance, publish final guidance. (c) Applicability Section 505(j)(3)(H) of the Federal Food, Drug, and Cosmetic Act, as added by subsection (a), applies beginning on the date of enactment of this Act, irrespective of the date on which the guidance required by subsection (b) is finalized.