A district court granted in part and denied in part summary judgment for an environmental group in a challenge to NMFS' denial of the group's petition to promulgate ESA §4(d) regulations for 20 coral species. The group had petitioned NMFS in response to the Service's inaction on its own findings in...

A district court vacated a 2022 instruction memorandum (IM) issued by BLM that outlined policies and procedures for administering an incentive program for adopting federally protected wild horses and burros. Animal rights groups challenged the IM, arguing it violated the Wild Free-Roaming Horses and...

The Tenth Circuit denied environmental groups' petition to review an EPA rule that partially approved Colorado's SIP to reduce ozone pollution. The groups sought vacatur of the approval, arguing the Agency violated the CAA by approving the reasonable further progress and motor vehicle emissions budg...

In an unpublished opinion, the Ninth Circuit affirmed in part and reversed in part a district court ruling in a lawsuit over a logging project in Kootenai National Forest. Conservation groups sued the Forest Service and FWS, arguing the project's approval violated the ESA, NEPA, and the National For...

The U.S. Supreme Court held, 5-4, that the CWA does not authorize EPA to include "end-result" provisions in NPDES permits, in a lawsuit concerning the Agency's issuance of a renewal permit for the city of San Francisco that added two such requirements. The city petitioned for review, arguing the req...