later than 90 days after the date of enactment of this Act, the Administrator of the Environmental Protection Agency, in consultation with the Director of the National Science Foundation, the Secretary of Defense, the Director of the National Institutes of Health, and other Federal agencies with expertise relevant to understanding PFAS exposure and toxicity, shall enter into an agreement with the National Academies to conduct a two-phase study and submit reports in accordance with this subsection to identify research and development needed to advance human exposure estimation and toxicity and hazard estimation of individual or total PFAS. (2) Phase I study and report on human exposure estimation (A) In general The phase I study required to be conducted under paragraph (1) shall, at a minimum— (i) consider life-cycle information on the manufacture, use, and disposal of PFAS-containing products to identify exposure sources and potential exposure pathways for the public