; and (2) an evaluation of the ability of those technologies to become cost-competitive with other options for obtaining source materials or producing energy. (c) Report required Not later than 2 years after the date of the enactment of this Act, the EPA Administrator shall submit to Congress a report on the study conducted under subsection (a). 307. Study on effects of microplastics in food supplies and sources of drinking water (a) In general The EPA Administrator, in consultation with the Under Secretary, shall seek to enter into an arrangement with the National Academies of Sciences, Engineering, and Medicine under which the National Academies will conduct a human health and environmental risk assessment on microplastics, including microfibers, in food supplies and sources of drinking water. (b) Report required Not later than 2 years after the date of the enactment of this Act, the EPA Administrator shall submit to Congress a report on the study conducted under subsection (a) that includes— (1) a science-based definition of microplastics that can be adopted in federally supported monitoring and future assessments supported or conducted by a Federal agency; (2) recommendations for standardized monitoring, testing, and other necessary protocols relating to microplastics; (3) (A) an assessment of whether microplastics are currently present in the food supplies and sources of drinking water of United States consumers; and (B) if the assessment under subparagraph (A) is positive— (i) the extent to which microplastics are present in the food supplies and sources of drinking water; and (ii) an assessment of the type, source, prevalence, and risk of microplastics in the food supplies and sources of drinking water; (4) an assessment of the risk posed, if any, by the presence of microplastics in the food supplies and sources of drinking water of United States consumers that includes— (A) an identification of the most significant sources of those microplastics