; (B) support the development and manufacturing of virus seeds, clinical trial lots, and stockpiles of novel virus strains; and (C) maintain or improve preparedness activities, including for pandemic influenza. (2) Authorization of appropriations (A) In general To carry out this subsection, there is authorized to be appropriated $250,000,000 for each of fiscal years 2019 through 2023. (B) Supplement, not supplant Amounts appropriated under this paragraph shall be used to supplement and not supplant funds provided under sections 319L(d) and 319F–2(g). (C) Documentation required The Assistant Secretary for Preparedness and Response, in accordance with subsection (b)(7), shall document amounts expended for purposes of carrying out this subsection, including amounts appropriated under the heading Public Health and Social Services Emergency Fund under the heading Office of the Secretary under title II of division H of the Consolidated Appropriations Act, 2018 ( Public Law 115–141 ) and allocated to carrying out section 319L(c)(4)(F). . 405. Reporting on the Federal Select Agent Program Section 351A(k) ( 42 U.S.C. 262a(k) ) is amended— (1) by striking The Secretary and inserting the following: (1) In general The Secretary