; sunset Section 319F–2(a) of the Public Health Service Act (42 U.S.C. 247d–6b(a)) is amended by adding at the end the following: (6) Reporting Not later than September 30, 2022, the Secretary shall submit to the Committee on Energy and Commerce of the House of Representatives and the Committee on Health, Education, Labor and Pensions of the Senate a report on the details of each purchase, lease, or joint venture entered into under paragraph (3)(L), including the amount expended by the Secretary on each such purchase, lease, or joint venture. (7) Sunset The authority to make purchases, leases, or joint ventures pursuant to paragraph (3)(L) shall cease to be effective on September 30, 2023. . (c) Funding Section 319F–2(f) of the Public Health Service Act (42 U.S.C. 247d–6b(f)) is amended by adding at the end the following: (3) Supply chain elasticity (A) In general For the purpose of carrying out subsection (a)(3)(L), there is authorized to be appropriated $500,000,000 for each of fiscal years 2020 through 2023, to remain available until expended. (B) Relation to other amounts The amount authorized to be appropriated by subparagraph (A) for the purpose of carrying out subsection (a)(3)(L) is in addition to any other amounts available for such purpose. . 30533. Reimbursable transfers from Strategic National Stockpile Section 319F–2(a) of the Public Health Service Act (42 U.S.C. 247d–6b(a)), as amended, is further amended by adding at the end the following: (8) Transfers and reimbursements (A) In general Without regard to chapter 5 of title 40, United States Code, the Secretary may transfer to any Federal department or agency, on a reimbursable basis, any drugs, vaccines and other biological products, medical devices, and other supplies in the stockpile if— (i) the transferred supplies are less than 6 months from expiry; (ii) the stockpile is able to replenish the supplies, as appropriate