On April 8,  U.S. Environmental Protection Agency (EPA) Administrator Michael S. Regan signed a final rule regulating six per- and polyfluoroalkyl substances (PFAS) under the Safe Drinking Water Act (SDWA). The final rule, which will become effective 60 days after publication in the Federal Register, sets individual maximum contaminant levels (MCLs) for PFOA and PFOS at 4.0 nanograms per liter (ng/L), and for PFHxS, PFNA, and HFPO-DA at 10 ng/L. In addition to these individual MCLs, the rule establishes a hazard index (HI) of one (unitless) as the MCL for any mixture containing two or mor ..read more

On March 27, the U.S. Fish and Wildlife Service (FWS) and National Marine Fisheries Service (NMFS) (collectively, the Services) issued three sets of final rules revising the Endangered Species Act (ESA) regulations. The effective date of the regulations will not be known until the regulations are published in the Federal Register. In the meantime, the final regulations can be found on the FWS website. The three final rules address (1) the protections for threatened species; (2) the listing process for species and critical habitat designations; and (3) the ESA Section 7 consultation process. Wi ..read more

The U.S. Fish and Wildlife Service (FWS) continues to focus on protections for bat species that have been ravaged by white-nose syndrome. In 2023, the Northern Long-Eared Bat (NLEB) was uplisted to endangered status. The FWS proposed to list the Tricolored Bat (TCB) as endangered in 2022, with a target date of September 2024 to finalize the listing. However, on April 1, FWS issued a series of guidance documents covering both NLEB and TCB, suggesting that the TCB endangered listing may be accelerated. Like the NLEB, the TCB has extensive habitat throughout the U.S. (37 states for NLEB, and 39 s ..read more

On March 11, the U.S. Environmental Protection Agency (EPA) published the long-awaited Safer Communities by Chemical Accident Prevention Rule (Final Rule), which concluded a nearly decadelong process — spanning three administrations — to update EPA’s Risk Management Program (RMP) under the Clean Air Act (CAA). The Final Rule makes major changes to the RMP program, requires covered facilities to comply with stringent new requirements for accident prevention and emergency preparedness, and increases public availability of chemical hazard information. Notably, the Final Rule also institutes board ..read more

The U.S. Securities and Exchange Commission (SEC) has issued its long-awaited climate reporting requirements, making it mandatory for the largest publicly traded companies in the U.S. to annually disclose both greenhouse gas (GHG) emissions and their material climate risks, with some requirements kicking in as early as 2025. On March 6, the SEC voted 3-2 along party lines to pass a pared down version of its March 2022 proposal, giving regulated companies the final word on the much-anticipated rule. The final rule requires companies to disclose climate-related information in SEC filings, includ ..read more

Effective April 12, a new eagle take permitting regime will be in place. The eagle take permitting scheme has been criticized because of its overly conservative and burdensome requirements. These concerns culminated in a lawsuit filed against the U.S. Fish and Wildlife Service (FWS). Debra Shearwater et al. v. FWS, Case No. 14-CV-02830 (N.D. Cal 2015). The changes to the permitting regulations published on February 8 are the outcome of that litigation. Overview of the Updated Permitting Framework The most significant change to the eagle permitting program is the establishment of a general perm ..read more

Exercising one of its most important and far-reaching powers under the Clean Air Act, the Environmental Protection Agency (EPA) has lowered the primary annual National Ambient Air Quality Standard (NAAQS) for fine particulate matter (PM2.5) from 12 micrograms per cubic meter (ug/m3) down to 9 ug/m3, changing the game on air quality permitting for much of the U.S. EPA’s February 7, 2024 final rule, which will become effective 60 days following its publication in the Federal Register, represents a reversal of the Trump administration’s decision to retain the PM2.5 standard of 12 ug/m3 set under ..read more

The U.S. Environmental Protection Agency (EPA) has formally withdrawn cybersecurity rules it promulgated in March requiring that states report cybersecurity threats to their public water systems (PWS). The reversal comes in the wake of lawsuits filed in the Eighth Circuit in July by Missouri, Arkansas, and Iowa (the states), along with intervenors American Water Works Association and National Rural Water Association (the water associations). As a result of the withdrawal, the states and water associations filed to dismiss their suits. The states argued that the EPA’s Cybersecurity Rule unlawfu ..read more

At the end of January, a federal judge issued a ruling in a high-profile environmental justice case, Louisiana v. EPA, brought by Louisiana against the Environmental Protection Agency (EPA) and the U.S. Department of Justice (DOJ). The ruling temporarily blocks EPA and DOJ attempts to enforce disparate-impact regulations promulgated under Title VI of the Civil Rights Act against Louisiana state agencies. Beyond that, the decision has potentially significant ramifications for the Biden administration’s ongoing environmental justice initiatives. The concept of environmental justice originated as ..read more

For anyone involved in the first round of the Clean Air Act regional haze program, the U.S. Environmental Protection Agency’s (EPA) action on the first business day of 2024 came as no surprise: EPA proposed to disapprove the regional haze plan for Kansas. If the past is any indication of the future, this proposal foreshadows what will likely be many more regional haze state plan disapprovals over the next 12 months, given that EPA has already been hauled into court once again to force it back on schedule. Among the many provisions of the Clean Air Act, the regional haze program is unique — sep ..read more