EPA has developed version 1.0 of a proposed screening level methodology that will be used to further examine whether the policy decision to exclude air and water exposure pathways from the risk evaluations will lead to a failure to identify and protect fenceline communities. TSCA requires EPA to evaluate all of a chemical’s conditions of use when conducting a risk evaluation. Under the previous Administration, the first 10 risk evaluations under TSCA generally did not assess air, water, or disposal exposures to the general population. The Biden-Harris Administration reversed this policy in June 2021.
The proposed screening level methodology uses reasonably available data, information, and models to quantify environmental releases, evaluate exposures to fenceline communities and characterize risks associated with such releases and exposures for certain air and water pathways previously not evaluated in published risk evaluations.
EPA will hold a public virtual meeting of the SACC on March 15-17, 2022, to peer review the screening level methodology. This review will ensure that the approach incorporates independent scientific advice and recommendations, and that EPA follows a transparent process. Information on registering to attend the public virtual meeting will be available in February 2022 on the SACC website.
The U.S. EPA signed an amendment to the rule on February 28, 2022 that removes the stay of the formaldehyde limit for lean premix and diffusion flame gas-fired units that were constructed or reconstructed after January 14, 2003.