The First Circuit vacated an air permit issued by the Massachusetts Department of Environmental Protection (MDEP) for a proposed natural gas compressor station that is part of a natural gas pipeline connecting the northeastern U.S. and Canada. Nearby municipalities and citizens argued that MDEP impr...

A district court vacated BLM's 2018 instruction memorandum (IM) and oil and gas lease sales in Montana and Wyoming issued in reliance on the IM for failing to maintain federal protections for the greater sage-grouse. Environmental groups challenged the IM and lease sales, arguing that they violated ...

In an unpublished opinion, the Ninth Circuit affirmed in part and dismissed in part a challenge to the Forest Service's decision to authorize logging in Idaho's Nez Perce-Clearwater National Forests. Environmental groups argued the decision violated the National Forest Management Act (NFMA) and the ...

The D.C. Circuit granted in part and denied in part Delaware's and Maryland's challenges to EPA's denial of their CAA §126(b) petitions requesting that the Agency impose additional limitations on certain upwind sources contributing to the states' nonattainment of ozone NAAQS. Maryland's petition ar...

The Eleventh Circuit vacated and remanded the U.S. Tax Court's decision disallowing a charitable deduction for a conservation easement over property that included a private golf course and undeveloped land. The appellate court found that the Internal Revenue Code did not disqualify an easement simpl...

The Ninth Circuit affirmed summary judgment for the Forest Service in a challenge to its issuance of grazing authorizations on allotments in the Malheur National Forest. Environmental groups argued that the Service violated the National Forest Management Act (NFMA) when it failed to "analyze and sho...

The D.C. Circuit ordered the Federal Aviation Administration and the National Park Service to issue regulations for commercial sightseeing flights over 23 national parks. Nonprofit groups sought to compel the agencies to regulate air tours at seven parks where they had injured members, as required b...

The D.C. Circuit granted a petition to review EPA's 2017 rule revising its emission standard for hazardous air pollutants (HAPs) emitted from pulp mill combustion sources. Environmental groups argued that EPA was required under §112(d)(6) of the CAA to consider the adequacy of the standard to contr...