1. Short title This Act may be cited as the Public Health Air Quality Act of 2020 . 2. Health emergency air toxics monitoring (a) Monitoring Not later than 120 days after the date of enactment of this Act, the Administrator shall carry out a program to administer or conduct, pursuant to authority provided under the Clean Air Act ( 42 U.S.C. 7401 et seq.), including section 114 of such Act ( 42 U.S.C. 7414 ), the best available form of fenceline monitoring of stationary sources of hazardous air pollutants that are on the list developed under subsection (c). (b) Publication of results The Administrator shall publish and maintain the results of all fenceline monitoring conducted under the program under subsection (a) on the website of the Environmental Protection Agency for a period of at least 5 years. (c) List of sources (1) Development The Administrator shall develop a list of stationary sources of hazardous air pollutants that includes— (A) the 25 high-priority facilities listed in Appendix A of the Environmental Protection Agency’s Office of Inspector General Report #20–N–0128 (March 31, 2020); and (B) at least another 25 major sources or synthetic area sources. (2) Requirements The Administrator may include a stationary source on the list developed under paragraph (1) only if the source— (A) emits at least one of the pollutants described in paragraph (3); (B) is— (i) located in, or within 3 miles of, a census tract with— (I) a cancer risk of at least 100-in-1 million; or (II) a chronic non-cancer hazard index that is above 1 based on the most recent National Air Toxics Assessment; or (ii) in a source category with— (I) a cancer risk that is at least 50-in-1 million; (II) a total organ-specific hazard index for chronic non-cancer risk that is greater than 1; or (III) an acute risk hazard quotient that is greater than 1; and (C) is— (i) classified in one or more of North American Industry Classification System codes 322, 324, 325