; (2) after providing a period of at least 30 days for public comment, update the list by adding nonfunctional constituents that are known or reasonably expected to be present in a cosmetic or ingredient as specified in subsection (b)(1) and— (A) are determined by the Secretary to meet the standard specified in section 621(4)(A) based on existing and emerging science; or (B) have been added to one of the lists in section 621(4)(B); and (3) update the list by adding any nonfunctional constituent whose addition was approved pursuant to a petition under subsection (f). (f) Petition process for adding nonfunctional constituents or new lists (1) In general Any person may petition, in accordance with paragraph (3), to add— (A) a nonfunctional constituent to the list under subsection (a); or (B) a new list to the lists specified in section 621(4)(B). (2) Development of process The Secretary— (A) not later than 24 months after the date of enactment of the Cosmetic Supply Chain Transparency Act of 2023 , shall develop and publish the process for submitting a petition under this subsection; and (B) may periodically review and update such process. (3) Requirements for process The process developed and updated by the Secretary under paragraph (2) shall be consistent with the following: (A) Such process shall specify the necessary scientific justification that must be included in a petition. (B) The Secretary shall— (i) provide a 30-day period for public comment on a petition