On June 28, in a highly anticipated ruling, the U.S. Supreme Court overturned Chevron USA Inc. v. Natural Resources Defense Council Inc., finding that Chevron deference, the 40-year-old precedent deferring to reasonable agency interpretation of ambiguous statutes, is no longer valid. This decision, in addition to other recent Supreme
PFAS Designated as CERCLA Hazardous Substances
On April 19, the U.S. Environmental Protection Agency (EPA) released a pre-publication version of the long-awaited final rule designating two per- and polyfluoroalkyl substances (PFAS) as “hazardous substances” under the Comprehensive Environmental Response, Cleanup, and Liability Act (CERCLA). This final rule comes right on the heels of EPA’s April 8
Washington Adopts Two Ambitious Environmental Justice Laws
Last week, Washington became the latest state to address environmental justice (EJ) through legislation by adopting the Healthy Environment for All (HEAL) Act and the Climate Commitment Act into law. The HEAL Act, which is the more comprehensive of the two passed laws, was based on recommendations of a state-funded environmental task force issued in fall of 2020 and seeks to remedy the effects of past disparate treatment of vulnerable communities. The Climate Commitment Act is a more targeted law that establishes a greenhouse gas (GHG) emissions cap-and-invest program with the goal of reducing GHG and criteria pollutants in overburdened communities highly impacted by air pollution. Although the laws become effective on July 25, their major EJ-related requirements take effect at later dates.
Biden EPA Rescinds Trump’s Cost-Benefit and Guidance Document Rules
Although the Biden administration has yet to issue many new substantive air quality regulations, Biden’s EPA recently issued two rules revoking Trump-era procedural regulations that should pave the way for a more aggressive regulatory agenda. On May 13, EPA rescinded the “Increasing Consistency and Transparency in Considering Benefits and Costs in the Clean Air Act Rulemaking Process Rule” (Cost-Benefit Rule), a requirement governing cost-benefit analyses for Clean Air Act (CAA) rulemakings, and on May 18, the agency revoked the “EPA Guidance; Administrative Procedures for Issuance and Public Petitions Rule” (Guidance Document Rule), which required all “significant” EPA guidance to undergo a public notice and comment process prior to issuance, modification, or withdrawal.
Rule Limiting EPA Regulation of GHG Emissions Vacated by D.C. Circuit
On April 5, the U.S. Court of Appeals for the D.C. Circuit vacated a Trump-era rule that would have prevented the Environmental Protection Agency (EPA) from setting greenhouse gas (GHG) emissions standards for almost any class of stationary sources, except for fossil fuel-fired electric generating units. The court’s decision, issued at the request of the new Biden EPA, clears the way for new sector-by-sector GHG regulations should the new administration seek to set new GHG standards under Section 111 of the Clean Air Act (CAA).
EPA Publishes Advance Notice of Proposed Rulemaking in Preparation for Crafting PFAS Effluent Limitations Guidelines
On March 17, the U.S. Environmental Protection Agency (EPA) published an Advance Notice of Proposed Rulemaking (ANPRM) that puts forth 28 questions directed at manufacturers and formulators of per- and polyfluoroalkyl substances (PFAS). The agency intends to use the ANPRM and comments it receives to initiate formal rulemaking to establish effluent limitations guidelines (ELGs) for facilities that manufacture or blend PFAS with other chemicals or products, likely at least initially as an amendment to the existing guidelines governing the “Organic Chemicals, Plastics and Synthetic Fibers” (OCPSF) industrial sector.
Biden EPA Hits the Ground Running with Reviews of Trump Air-Related Rules
On January 20, newly inaugurated President Joe Biden signed an executive order titled, “Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis,” initiating review of nearly 50 environmental rules and regulations, including 20 air-related regulations that the new administration views as insufficient or unsupported by the data.
EPA Proposes Perchlorate MCL under the Safe Drinking Water Act
On June 26, 2019, EPA published a Notice of Proposed Rulemaking requesting comment on a proposed Maximum Contaminant Level (MCL) for perchlorate under the Safe Drinking Water Act (SDWA). Perchlorate is both a man-made and naturally-occurring chemical, most commonly found in industrial operations associated with the use or manufacture of rocket fuel, missiles and fireworks. Perchlorate inhibits the uptake of iodide to the thyroid and has been detected in certain public water supply systems, primarily in the western United States. In its Notice, EPA proposes an MCL of 56 µg/L, but at the same time requests public comment on whether the MCL should be set at a higher or lower standard, or whether the agency should re-evaluate its decision to regulate perchlorate based on updated data. This rule, if finalized, could affect thousands of public water systems that would be required to comply with the new standard, as well as state and tribal agencies responsible for drinking water regulatory development and enforcement.