; (II) during the period beginning on the effective date of such regulations, and ending on the date that is 1 year after such date, not later than 180 days after an interested party submits a petition under subclause (I), the Secretary shall— (aa) determine whether the covered product or mixture shall be excluded under subparagraph (B); and (bb) if the Secretary determines that the covered product or mixture shall be excluded under subparagraph (B) and so excludes the covered product or mixture; (III) after the date that is 1 year after the effective date of such regulations, not later than 90 days after an interested party submits a petition under subclause (I), the Secretary shall— (aa) determine whether the covered product or mixture shall be excluded under subparagraph (B); and (bb) if the Secretary determines that the covered product or mixture shall be excluded under subparagraph (B)— (AA) document any such determination and make publicly available on an established and secure platform to those individuals with a need to know within the meaning of section 27.400(e) of title 6, Code of Federal Regulations, or any successor thereto; and (BB) so exclude the covered product or mixture; and (IV) if an interested party submits a petition under subclause (I) and the Secretary has not made a determination as to whether the relevant covered product or mixture shall be excluded under subparagraph (B) by the date required under subclause (II) or (III) of this subparagraph, as applicable, the Secretary may extend the period in which the determination is to be made— (aa) upon the request of the interested party