The D.C. Circuit threw out a challenge from the Midwest Ozone Group to EPA's Cross-State Air Pollution Rule.

EPA reaffirmed the legal basis for its MATS rule, but there will be no immediate impact, as the 519 plants affected are already in compliance.

Texas regulators have cited the state's right of first refusal law in denying Grid United’s request to build a link between ERCOT and the West.

Oregon is eligible for hundreds of millions of federal dollars for electrification, EE and grid resilience, but has received just $200,000 so far.

House members squared off over a set of proposals from the new GOP majority to lessen environmental and other regulatory barriers to domestic energy production.

The Biden administration released a national plan to eliminate carbon dioxide and other GHG emissions from the nation’s transportation sector by 2050.

EPA wants to cut the annual levels of PM2.5 ― the very small particles of soot produced by fossil fuel combustion ― by as much as 25% from the current standard.

The EPA announced tough new emission standards for heavy-duty vehicles: cleaner trucks but not until the 2027 model year and not completely clean until 2045.

EPA on Wednesday announced it is distributing nearly $1 billion in grants to 389 school districts across the U.S. to buy cleaner buses, most of them electric.

The Supreme Court’s ruling on EPA's regulation of GHG emissions will chill agency rulemakings but won't cripple regulation, attorneys told an EBA forum.