1. Short title This Act may be cited as the PFAS Testing Act of 2019 . 2. Testing of perfluoroalkyl and polyfluoroalkyl substances (a) Testing requirements Section 4(a) of the Toxic Substances Control Act ( 15 U.S.C. 2603(a) ) is amended by adding at the end the following: (5) Perfluoroalkyl and polyfluoroalkyl substances order Notwithstanding paragraphs (1) through (4), not later than 60 days after the date of enactment of this paragraph, the Administrator shall, by order, require that comprehensive toxicity testing be conducted on all chemical substances that are perfluoroalkyl and polyfluoroalkyl substances. . (b) Persons subject to order Section 4(b)(3) of the Toxic Substances Control Act ( 15 U.S.C. 2603(b)(3) ) is amended— (1) in subparagraph (A), by striking subparagraph (B) or (C) and inserting subparagraph (B), (C), or (D)