; (iii) the scientific and technical information on which the petition is based, including a description of the risk reduction that would result from the proposed ballast water discharge standard included under clause (i); and (iv) any additional information the Secretary considers appropriate. (D) Public availability Upon receipt of a petition under subparagraph (A), the Secretary shall make publicly available a copy of the petition, including the information included under subparagraph (C). (E) Treatment of more than one petition as a single petition The Secretary may treat more than one petition submitted under subparagraph (A) as a single such petition. (F) Authority to review After receiving a petition that meets the requirements of this paragraph, the Secretary, in consultation with the Administrator, may conduct a review under paragraph (1). (b) Practicability review (1) In general If the Secretary determines under subsection (a) that revision of the ballast water discharge standard would result in a reduction in the risk of the introduction or establishment of aquatic nuisance species, the Secretary, in consultation with the Administrator, shall conduct a practicability review to determine whether— (A) a ballast water management system that is capable of achieving the ballast water discharge standard as proposed to be revised is economically achievable and operationally practicable; and (B) testing protocols that can assure accurate measurement of compliance with the ballast water discharge standard as proposed to be revised can be practicably implemented. (2) Criteria for practicability review In conducting a practicability review under paragraph (1), the Secretary shall consider— (A) improvements in the scientific understanding of biological and ecological processes that lead to the introduction or establishment of aquatic nuisance species