chemical described in subparagraph (C) (Chemical Abstract Service Nos. 45298–90–6, 29457–72–5, 56773–42–3, 29081–56–9, 4021–47–0, 111873–33–7, and 91036–71–4). (E) A perfluoroalkyl or polyfluoroalkyl substance or class of perfluoroalkyl or polyfluoroalkyl substances that is— (i) listed as an active chemical substance in the February 2019 update to the inventory under section 8(b)(1) of the Toxic Substances Control Act ( 15 U.S.C. 2607(b)(1) )