; and (B) recommendations with respect to ensuring the activities described in paragraph (4) continue after the period for grant funding for those activities expires. (6) Authorization of appropriations There are authorized to be appropriated such sums as are necessary to carry out this subsection for each of fiscal years 2021 through 2023. 106. Environmental study through National Academies (a) In general The Administrator of the Environmental Protection Agency shall seek to enter an agreement, not later than 60 days after the date of enactment of this Act, with the National Academies of Sciences, Engineering, and Medicine (referred to in this section as the National Academies ) under which the National Academies agree to conduct a study on the impacts of water and air quality, exposure to extreme temperatures, and pollution levels on maternal and infant health outcomes. (b) Study requirements The agreement under subsection (a) shall direct the National Academies to make recommendations for— (1) improving environmental conditions to improve maternal and infant health outcomes