News & Analysis as of

Carbon Emissions Environmental Protection Agency (EPA) Regulatory Requirements

Foley Hoag LLP - Environmental Law

RGGI Third Program Review Concludes: New Model Rule and Strengthened Emission Caps Unveiled Amid Federal Scrutiny

Earlier this month, the Regional Greenhouse Gas Initiative (RGGI) announced the completion of the RGGI Third Program Review, which resulted in several major changes to the RGGI Model Rule that will shape the program through...more

Beveridge & Diamond PC

RGGI Third Program Review Significantly Strengthens GHG Targets, Expands Cost Containment Reserve, Eliminates Offsets, and Makes...

Beveridge & Diamond PC on

On July 3, 2025, the Regional Greenhouse Gas Initiative (RGGI) completed and released its Third Program Review and an updated CO2 Budget Trading Program Model Rule. RGGI evaluated numerous scenarios during the multi-year...more

Vinson & Elkins LLP

EPA Proposes to Repeal Biden-era Regulations Governing Air Toxic Emissions from Coal- and Oil-Fired Power Plants

Vinson & Elkins LLP on

On June 17, 2025, the U.S. Environmental Protection Agency (“EPA”) published a proposed rule to repeal the amendments to the Mercury and Air Toxics Standards (“MATS”) adopted by the Biden administration in 2024. These...more

DLA Piper

Horizon - ESG Regulatory News and Trends - June 2025

DLA Piper on

EPA announces details of its reorganization. On May 2, the EPA announced a major reorganization that will eliminate several key offices, including the Office of Atmospheric Protection (OAP), Office of Air Quality Planning and...more

Hanson Bridgett

Trucks, Trains, and Automobiles: Untangling the Status of California’s Vehicle Emission Waivers

Hanson Bridgett on

Vehicle manufacturers and operators in California are no stranger to complex regulations, with the California Air Resources Board’s (CARB) history of pioneering mobile emission regulations. ...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Transportation/Hazardous Materials: Pipeline and Hazardous Materials Safety Administration Interpretive Letter Addressing Carbon...

The United States Pipeline and Hazardous Materials Safety Administration (“PHMSA”) addressed in a January 3rd Interpretive Letter the applicability of the federal Hazardous Materials Regulations (“HMR”) to a device designed...more

Morrison & Foerster LLP

Advanced Clean Fleets Regulations No Longer in Force for Most Fleet Operators and Owners

In the face of the Trump administration’s hostility toward California’s Clean Air Act waivers in general, CARB withdrew its request to EPA for a waiver for the Advanced Clean Fleets (ACF) regulation on January 13, 2025....more

(ACOEL) | American College of Environmental...

The Clean Power Plan—And Around We Go

In 2015, EPA proposed a rule requiring states to develop plans to cut CO2 emissions from the power sector—the Clean Power Plan (“CPP”). EPA explained the rule would result in “significant emission reductions” for that sector,...more

Goldberg Segalla

California Withdraws EPA Waiver Request for Zero-Emission Advanced Clean Fleet Regulations

Goldberg Segalla on

California’s Air Resources Board (CARB) on Jan. 13 sent a letter to withdraw its request to the Environmental Protection Agency pursuant to Sections 209(b) of the Clean Air Act (CAA) for a federal waiver that would require...more

Foley Hoag LLP - Environmental Law

The D.C. Circuit Affirms EPA’s Reinstatement of California’s Authority to Set Auto Emissions Limits; Don’t Get Too Excited About...

On Tuesday, in Ohio v. EPA, the D.C. Circuit Court of Appeals denied several challenges to EPA’s decision to restore California’s authority under § 209(b) of the Clean Air Act to regulate emissions from motor vehicles. It’s...more

White & Case LLP

EPA Finalizes New Vehicle Emission Limits for CO2 and Other Pollutants

White & Case LLP on

The new emission limits apply to new passenger cars, light trucks and large pickups and vans, and set increasingly stringent fleet-wide emission limits covering carbon dioxide and other pollutants for Model Years 2027-2032....more

Jenner & Block

EPA Issues Stringent Emissions Standards for Light- and Medium-Duty Vehicles

Jenner & Block on

On March 20, 2024, EPA announced new emissions standards for light-duty and medium-duty vehicles, starting with model year (“MY”) 2027 and phasing in through MY 2032. The new standards require reductions in emissions of...more

King & Spalding

EPA and NHTSA Take Regulatory Action to Revoke California Authority to Regulate Greenhouse Gas Emissions

King & Spalding on

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

Foley & Lardner LLP

Negotiations Idle Between EPA, California over Emissions Standards

Foley & Lardner LLP on

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

Hogan Lovells

NHTSA and EPA propose roll back of Obama-era car rules

Hogan Lovells on

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

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