Environmental Protection Agency June 16, 2023 – Federal Register Recent Federal Regulation Documents

On May 23, 2023, the Environmental Protection Agency (EPA) issued a proposal titled, ``New Source Performance Standards for Greenhouse Gas Emissions from New, Modified, and Reconstructed Fossil Fuel-Fired Electric Generating Units; Emission Guidelines for Greenhouse Gas Emissions from Existing Fossil Fuel-Fired Electric Generating Units; and Repeal of the Affordable Clean Energy Rule''. The EPA is extending the comment period on the proposed rules from July 24, 2023, to August 8, 2023.

The Environmental Protection Agency (EPA) is proposing to address the unreasonable risk of injury to human health presented by perchloroethylene (PCE) under its conditions of use as documented in EPA's December 2020 Risk Evaluation for PCE and December 2022 revised risk determination for PCE prepared under the Toxic Substances Control Act (TSCA). PCE is a widely used solvent in a variety of occupational and consumer applications including fluorinated compound production, petroleum manufacturing, dry cleaning, and aerosol degreasing. EPA determined that PCE presents an unreasonable risk of injury to health due to the significant adverse health effects associated with exposure to PCE, including neurotoxicity effects from acute and chronic inhalation exposures and dermal exposures, and cancer from chronic inhalation exposures to PCE. TSCA requires that EPA address by rule any unreasonable risk of injury to health or the environment identified in a TSCA risk evaluation and apply requirements to the extent necessary so the chemical no longer presents unreasonable risk. PCE, also known as perc and tetrachloroethylene, is a neurotoxicant and a likely human carcinogen. Neurotoxicity, in particular impaired visual and cognitive function and diminished color discrimination, are the most sensitive adverse effects driving the unreasonable risk of PCE, and other adverse effects associated with exposure include central nervous system depression, kidney and liver effects, immune system toxicity, developmental toxicity, and cancer. To address the identified unreasonable risk, EPA is proposing to prohibit most industrial and commercial uses of PCE; the manufacture (including import), processing, and distribution in commerce of PCE for the prohibited industrial and commercial uses; the manufacture (including import), processing, and distribution in commerce of PCE for all consumer use; and, the manufacture (including import), processing, distribution in commerce, and use of PCE in dry cleaning and related spot cleaning through a 10- year phaseout. For certain conditions of use that would not be subject to a prohibition, EPA is also proposing to require a PCE workplace chemical protection program that includes requirements to meet an inhalation exposure concentration limit and prevent direct dermal contact. EPA is also proposing to require prescriptive workplace controls for laboratory use, and to establish recordkeeping and downstream notification requirements. Additionally, EPA proposes to provide certain time-limited exemptions from requirements for certain critical or essential emergency uses of PCE for which no technically and economically feasible safer alternative is available.

The U.S. Environmental Protection Agency (EPA) is announcing a 60-day public comment period on the draft Cumulative Risk Assessment (CRA) Guidelines for Planning and Problem Formulation. The CRA Guidelines for Planning and Problem Formulation describe steps for the planning and problem formulation of CRAs and offer guidelines for when cumulative risk assessments could be appropriate. Planning defines both the process for conducting the risk assessment and its general scope, while problem formulation identifies major factors considered in a specific assessment to inform its technical approach. The draft CRA Guidelines for Planning and Problem Formulation are not final, and do not represent, and should not be construed to represent, Agency policy or views.