100 STAT. 1636
PUBLIC LAW 99-499—OCT. 17, 1986
SEC. n o. HEALTH-RELATED AUTHORITIES.
42 USC 9604.
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Section 104(i) of CERCLA is amended as follows: (1) Insert "(1)" after "(i)" and redesignate paragraphs (1), (2), (3), (4), and (5) as subparagraphs (A), (B), (C), (D), and (E). (2) In paragraph (1), strike "and" after "Health Administration," and insert after "Social Security Administration," the following: "the Secretary of Transportation, and appropriate State and local health officials,". (3) Insert after "chromosomal testing" in subparagraph (D) (as redesignated by paragraph (1) of this subsection) the following: "where appropriate". (4) Add the following new paragraphs at the end thereof: "(2)(A) Within 6 months after the enactment of the Superfund Amendments and Reauthorization Act of 1986, the Administrator of the Agency for Toxic Substances and Disease Registry (ATSDR) and the Administrator of the Environmental Protection Agency (EPA) shall prepare a list, in order of priority, of at least 100 hazardous substances which are most commonly found at facilities on the National Priorities List and which, in their sole discretion, they determine are posing the most significant potential threat to human health due to their known or suspected toxicity to humans and the potential for human exposure to such substances at facilities on the National Priorities List or at facilities to which a response to a release or a threatened release under this section is under consideration. "(B) Within 24 months after the enactment of the Superfund Amendments and Reauthorization Act of 1986, the Administrator of ATSDR and the Administrator of EPA shall revise the list prepared under subparagraph (A). Such revision shall include, in order of priority, the addition of 100 or more such hazardous substances. In each of the 3 consecutive 12-month periods that follow, the Administrator of ATSDR and the Administrator of EPA shall revise, in the same manner as provided in the 2 preceding sentences, such list to include not fewer than 25 additional hazardous substances per revision. The Administrator of ATSDR and the Administrator of EPA shall not less often than once every year thereafter revise such list to include additional hazardous substances in accordance with the criteria in subparagraph (A). "(3) Based on all available information, including information maintained under paragraph (1)(B) and data developed and collected on the health effects of hazardous substances under this paragraph, the Administrator of ATSDR shall prepare toxicological profiles of each of the substances listed pursuant to paragraph (2). The toxicological profiles shall be prepared in accordance with guidelines developed by the Administrator of ATSDR and the Administrator of EPA. Such profiles shall include, but not be limited to each of the following: "(A) An examination, summary, and interpretation of available toxicological information and epidemiologic evaluations on a hazardous substance in order to ascertain the levels of significant human exposure for the substance and the associated acute, subacute, and chronic health effects. "(B) A determination of whether adequate information on the health effects of each substance is available or in the process of development to determine levels of exposure which present a
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