A district court denied Oklahoma's motion to preliminarily enjoin EPA and the U.S. Army Corps of Engineers from enforcing their 2015 Clean Water Rule. The state sought to enjoin the 2015 Rule from being enforced until a final judgment was entered in the case. But the court found the potential harm f...

A district court granted states' and industry groups' motion for summary judgment in a challenge to EPA's and the U.S. Army Corps of Engineers' 2015 Clean Water Rule. The states and groups argued that the final rulemaking violated the notice-and-comment requirements under the APA because the rulemak...

A district court denied the Pipeline and Hazardous Materials Safety Administration's (PHMSA's) motion to dismiss a challenge to the agency's pipeline inspection regulations. An environmental group argued that PHMSA's existing regulations did not encompass all oil and gas pipelines that crossed feder...