If finalized, the rule would eliminate both Obama- and Biden-era limits on GHG emissions from fossil fuel-fired power plants. On June 11, 2025, the US Environmental Protection Agency (EPA) released a proposed rule under...more
Previously we’ve reviewed overarching expectations of the second Trump Administration, how the Trump Administration will act on California’s emissions waivers, the steps the Trump Administration is likely to take with respect...more
In a significant development for environmental law and state autonomy, the Supreme Court of the United States (SCOTUS) recently declined to review whether the U.S. Environmental Protection Agency (EPA) has the authority to...more
On the day of his inauguration, President Joe Biden issued a historic number of executive orders, several of which focused on overturning actions taken by the Trump Administration’s Environmental Protection Agency (EPA). We...more
Last week, in a 5-4 opinion, in Ohio v. Environmental Protection Agency, the U.S. Supreme Court granted applications for a stay of the implementation of the “Good Neighbor” Plan, the EPA’s federal emissions reduction rule,...more
In Ohio et al. v. U.S. EPA, on April 9, 2024, the United States Court of Appeals for the D.C. Circuit upheld a decision by the U.S. Environmental Protection Agency ("EPA") to allow California's 2013 greenhouse gas emissions...more
March and April have been busy months for vehicle emission regulation in the U.S. On March 20 and March 29 respectively, the U.S. Environmental Protection Agency (U.S. EPA) issued a set of final emission rules setting...more
The U.S. Environmental Protection Agency ("EPA") finalized the strictest-ever emission standards for heavy-duty vehicles. On March 29, 2024, EPA announced new emission standards for heavy-duty vehicles for model years 2027...more
Historically, regulations under the federal Clean Air Act (CAA) and related state laws divided the world into “stationary” and “non-stationary sources.” “Stationary sources” included facilities like power plants and factories...more
The U.S. Environmental Protection Agency ("EPA") has proposed regulations for calculating methane emissions fees required beginning this year under the Inflation Reduction Act ("IRA"). Section 136 of the Clean Air Act (added...more
On April 12, 2023, the Environmental Protection Agency (EPA) issued a Notice of Proposed Rulemaking for “Greenhouse Gas Emissions Standards for Heavy-Duty Vehicles – Phase 3” (the Phase 3 proposed rule or NPRM), establishing...more
On April 12, 2023, the Environmental Protection Agency (EPA) issued the notice of proposed rulemaking for “Multi-Pollutant Emission Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles” (the “proposed...more
On December 20, 2022, the Environmental Protection Agency finalized regulations aimed at reducing harmful emissions from trucks, delivery vehicles, and buses. These regulations will impact vehicles manufactured after 2027 and...more
On March 9, 2022, the US Environmental Protection Agency (EPA) rescinded a rule promulgated by the Trump Administration and revived California’s Clean Air Act waiver, allowing the state to set its own greenhouse gas emissions...more
On August 5, 2021, the Environmental Protection Agency (EPA) issued a Notice of Proposed Rulemaking (NPRM) to revise the federal greenhouse gas (GHG) emissions in model years (MY) 2022-2026. In coordination with the...more
On 31 March 2020, the U.S. Environmental Protection Agency (EPA) and the Department of Transportation National Highway Traffic Safety Administration (NHTSA) released a new joint rule finalizing the Trump administration's fuel...more
Action May Have Far-Reaching Impacts - Today, the Environmental Protection Agency (“EPA”) and the National Highway Traffic Safety Administration (“NHTSA”) announced a joint rule intended to substantially affect...more
Yesterday President Trump announced on Twitter that the U.S. was revoking California’s waiver under the Clean Air Act (CAA) which allowed it to impose stricter tailpipe emission standards than the federal ones. California’s...more
As President Trump’s nominee to head the Environmental Protection Agency, Andrew Wheeler, cleared a key committee vote this week, a conflict between EPA and the State of California over tailpipe greenhouse gas emissions shows...more
The National Highway Traffic Safety Administration (NHTSA) and the U.S. Environmental Protection Agency (EPA) issued a joint notice of proposed rulemaking today, called the "Safer Affordable Fuel-Efficient (SAFE) Vehicles...more
A coalition of states has opened a new front in the ongoing battles between the Trump Administration’s efforts to streamline regulations applicable to industry and the interests favoring additional regulation. In response to...more
The United States Environmental Protection Agency (“EPA”) in a March 12 Federal Register notice promulgated a final rule which encompassed revisions to the Clean Air Act New Source Performance Standards (“NSPS”) for the oil...more
A Volkswagen manager pleaded guilty to conspiracy and violating the Clean Air Act and could get seven years in prison. A Volkswagen engineer who agreed to testify against the Volkswagen manager was sentenced to three years in...more
On August 21, 2017, the U.S. Environmental Protection Agency (“EPA”) and the National Highway Traffic Safety Administration (“NHTSA”) published a joint notice in the Federal Register requesting public comment on EPA’s...more
Natural Gas - Natural Gas Outlook: U.S. On Track to be Net Exporter Q2 2017: Natural gas production and consumption are expected to rise this year due to increases in natural gas prices and LNG exports, as well as...more