1. (a) The department may not base a decision solely on federal risk values that have not been promulgated through federal rulemaking, including:

   1. (1) reference doses;
   2. (2) reference concentrations;
   3. (3) inhalation unit risks; or

   4. (4) hazard determinations, assessments, evaluations, goals, or toxicity or risk values;

      developed or issued under the United States Environmental Protection Agency's Integrated Risk Information System, 42 U.S.C. 300g-1, or 15 U.S.C. 2605.

2. (b) The department shall avoid the use of federal risk values that are at or below background concentrations in air, water, soil, or sediment.

As added by P.L.135-2026, SEC.85.