A state court preliminarily enjoined the New Hampshire Department of Environmental Services (DES) from enforcing new rules that tightened allowable limits of per- and polyfluoroalkyl substances (PFAS) in the state's drinking water and groundwater.

A state appellate court upheld the Oregon Fish and Wildlife Commission's 2015 decision to remove the gray wolf from the list of species protected under the Oregon Endangered Species Act (OESA).

A district court granted summary judgment to timber industry groups in a challenge to President Obama's designation of approximately 40,000 acres of federal timber land (O&C land) as part of the Cascade-Siskiyou National Monument.