The D.C. Circuit granted in part and denied in part a petition challenging EPA's update to the Cross-State Air Pollution Rule. Environmental groups and Delaware argued that EPA violated the CAA by failing to require upwind states to eliminate their significant contributions in accordance with the de...

The Fifth Circuit dismissed environmental groups' challenge to EPA's issuance of a CWA general permit authorizing discharges from oil and gas facilities operating in the Gulf of Mexico. Environmental groups argued that EPA violated NEPA by failing to prepare an adequate EIS before issuing the permit...

In an unpublished opinion, the Ninth Circuit reversed the denial of an environmental group's motion to intervene in a lawsuit challenging EPA and the U.S. Army Corps of Engineers' 2015 Clean Water Rule. The court found that the group had a practical interest in the rule and that this interest was no...

The D.C. Circuit upheld EPA's implementation of its Renewable Fuel Standards Program, which requires transportation fuel sold in the United States to contain a minimum volume of renewable fuels. Some industry groups argued that EPA arbitrarily refused to revise its 2010 point of obligation rule that...

A district court denied environmental groups' motion for summary judgment in a lawsuit seeking FOIA disclosure of an EPA computer model related to its rollback of Obama-era greenhouse gas emission standards for vehicle manufacturers. The groups challenged EPA's withholding of the model pursuant to a...

An Idaho district court transferred venue in a challenge to BLM's decision to renew livestock grazing permits for an allotment in northern Utah and to the Interior Board of Land Appeals' (IBLA's) reinstatement of that decision. An environmental group argued that BLM's decision violated FLPMA and NEP...