247d–6b ) is amended— (1) by amending subsection (a)(1) to read as follows: (1) In general (A) Maintaining stockpile or stockpiles The Secretary, in collaboration with the Assistant Secretary for Preparedness and Response, the Commissioner of Food and Drugs, and the Director of the Centers for Disease Control and Prevention, and in coordination with the Secretary of Homeland Security (referred to in this section as the Homeland Security Secretary ), shall— (i) maintain a stockpile or stockpiles of drugs, vaccines, and other biological products, medical devices, and other supplies (including personal protective equipment, ancillary medical supplies, and other applicable supplies required for the administration of drugs, vaccines and other biological products, medical devices, and diagnostic tests in the stockpile) in such numbers, types, and amounts as are determined consistent with section 2811 by the Secretary to be appropriate and practicable, taking into account other available sources, to provide for and optimize the emergency health security of the United States, including the emergency health security of children and other vulnerable populations, in the event of a bioterrorist attack or other public health emergency and, as informed by existing recommendations of, or consultations with, the Public Health Emergency Medical Countermeasure Enterprise established under section 2811–1, make necessary additions or modifications to the contents of such stockpile or stockpiles based on the review conducted under paragraph (2)