The D.C. Circuit granted hydrofluorocarbon (HFC) manufacturers' petitions to review a 2016 EPA rule that rendered certain HFCs unacceptable for various uses in aerosols, motor vehicle air conditioners, commercial refrigerators, and foams. The court found that it was bound by a previous ruling that s...

A district court granted Washington's and environmental groups' motion for summary judgment in a challenge to the state's decision to deny a coal company a CWA §401 certification for construction of a coal export facility along the Columbia River. A railroad company, which planned to provide rail s...

A district court denied Ohio's and Tennessee's motion to preliminarily enjoin EPA's 2015 Clean Water Rule that clarified the definition of "waters of the United States" under the CWA. The states challenged the validity of the rule, arguing it extended the scope of the CWA beyond the reach of the sta...

A district court granted in part and denied in part an environmental group's motion for summary judgment in a challenge to the Pipeline and Hazardous Materials Safety Administration's (PHMSA's) approval of two spill response plans for an oil pipeline that crosses Michigan's Straits of Mackinac. The ...

A district court vacated a provision of President Trump's 2017 Executive Order that reopened Alaska's Beaufort and Chukchi seas and canyon areas in the Atlantic Ocean to oil and gas exploration. Environmental groups argued the president did not have authority under the Outer Continental Shelf Lands ...

A district court granted EPA's motion to dismiss a CWA lawsuit seeking to require the Agency to publish New York's water quality standards. The Agency asserted that environmental groups lacked subject matter jurisdiction to bring the suit because EPA had a discretionary, rather than nondiscretionary...

A district court denied a manufacturing company's motion to dismiss a CWA lawsuit alleging that the company improperly stored and disposed of industrial waste at its sheet metal manufacturing facility. The company argued that an environmental group did not have standing to sue because it failed to n...

A district court granted residents' motion for summary judgment in a RCRA lawsuit against the city of New Orleans for inhumane and dangerous living conditions at a residential development located on a former landfill site previously operated by the city. The residents argued that the city had previo...

A district court denied EPA's motions to dismiss a lawsuit brought by two states and a Native American tribe seeking to recover response costs from the 2015 Gold King mine spill that sent millions of gallons of acid mine drainage into the Animas and San Juan Rivers. EPA argued that it retained sover...

The Sixth Circuit dismissed environmental groups' petition to review air pollution control permits issued by Ohio's Environmental Protection Agency for two natural gas compressor stations along a natural gas pipeline that runs from Ohio to Michigan. The groups argued that the permits were invalid be...