A district court granted in part environmental groups' motion for summary judgment in a CAA citizen suit concerning EPA's duty to update emissions standards for hazardous waste combustors. The groups sought declaratory judgment stating that EPA failed to comply with its obligations and injunctive re...

A district court denied conservation groups' petition to review the Forest Service's approval of a revised management plan for the Rio Grande National Forest. The groups argued the Service's approval violated the National Forest Management Act and the 2012 Planning Rule by not including species-spec...

The Fifth Circuit reversed in part a district court's dismissal of a lawsuit brought by property owners against the city of Dallas and the Army Corps of Engineers concerning an ongoing floodway extension project. The owners argued the Corps' failure to prepare a supplemental EIS to account for new i...

The Fifth Circuit granted EPA's motion to vacate its disapprovals of portions of regional haze SIPs submitted by Texas and Oklahoma and the issuance of federal implementation plans (FIPs) establishing a long-term strategy and/or reasonable progress goals for the states. EPA argued that because key d...

The Sixth Circuit vacated EPA's 2023 disapproval of a SIP proposed by Kentucky to comply with Agency changes to ozone NAAQS. Kentucky challenged the disapproval, which rested on different modeling that came out after the Agency's deadline for submitting the plan and on a lower threshold than the one...