A district court granted in part and denied in part NMFS' motion to dismiss a lawsuit seeking an expansion of the Service's 2008 Vessel Speed Rule to protect North Atlantic right whales. Conservation groups argued NMFS had unreasonably delayed its response to the groups' 2012 and 2020 petitions to e...

The Court of Federal Claims entered judgment for the U.S. government in a takings challenge against FWS for rerouting spring waters that had previously flowed through church property into a restoration channel in an effort to save a native fish species. The church argued the berm FWS installed upstr...

A district court granted researchers' and primate importers' motions to intervene in a lawsuit brought by a nonprofit group seeking FOIA disclosure of FWS records regarding the import and export of wildlife. The group challenged the Service's redaction of certain information pursuant to a FOIA exemp...

A district court dismissed a lawsuit brought by Catholic nuns seeking monetary damages for property taken by the Atlantic Sunrise natural gas pipeline. The nuns argued that construction and operation of the pipeline through land they owned would violate their free exercise of religion protected by t...

The Ninth Circuit granted in part and denied in part a petition to review EPA's final rule approving California's SIP for meeting the air quality standard for ozone in the San Joaquin Valley. An environmental group argued the SIP's contingency measure was inadequate because it provided only a nomina...

The D.C. Circuit denied a challenge to EPA's 2015 rule updating the standards under which the Agency audits wood-burning heaters' compliance with CAA emissions limits. An industry group argued the rule was invalid because, unlike the 1988 rule, it authorized testing at other labs and neither account...

A district court denied a water district's motion to intervene in an ESA lawsuit seeking protections for longfin smelt. The water district argued it had standing to intervene because its alleged injury—a reduction in water allocation—was economic, its injury was traceable to plaintiff's claims s...

The Eighth Circuit affirmed in part and reversed in part a district court ruling in an ongoing enforcement suit concerning air pollution at a utility company's coal-fired power plant in Missouri. EPA argued the company violated the CAA, Missouri's SIP, and its Title V permit by performing modificati...

The Ninth Circuit affirmed dismissal of a lawsuit concerning guidance issued by EPA recommending a statistical method for assessing water toxicity. Trade groups argued the Agency violated the APA and the CWA in issuing the guidance. A district court found that the guidance was not final agency actio...

The Fifth Circuit affirmed in part and reversed in part district court rulings in a collection of lawsuits concerning oil companies' decades of drilling activities along the Louisiana coast. Six Louisiana parishes filed suit in state court, arguing the companies violated the Louisiana State and Loca...