those perfluoroalkyl and polyfluoroalkyl substances designated pursuant to subsection (a), as hazardous substances under section 102(a) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9602(a) ) individually or in groups. (c) Review (1) In general Not later than 5 years after the date of the enactment of this Act, the Administrator of the Environmental Protection Agency shall submit to the appropriate congressional committees a report containing a review of actions by the Environmental Protection Agency to clean up contamination of the substances designated pursuant to subsection (a). (2) Matters included The report under paragraph (1) shall include an assessment of cleanup progress and effectiveness, including the following: (A) The number of sites where the Environmental Protection Agency has acted to remediate contamination of the substances designated pursuant to subsection (a). (B) Which types of chemicals relating to such substances were present at each site and the extent to which each site was contaminated. (C) An analysis of discrepancies in cleanup between Federal and non-Federal contamination sites. (D) Any other elements the Administrator may determine necessary. (3) Appropriate congressional committees defined In this subsection, the term appropriate congressional committees means the following: (A) The Committee on Energy and Commerce of the House of Representatives. (B) The Committee on the Environment and Public Works of the Senate. 3. 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 rule (A) Rule Notwithstanding paragraphs (1) through (3), the Administrator shall, by rule, require that comprehensive toxicity testing be conducted on all chemical substances that are perfluoroalkyl or polyfluoroalkyl substances. (B) Requirements In issuing a rule under