The D.C. Circuit denied petitions from industry groups challenging EPA's new kiln air emissions standards for brick and clay manufacturers, and largely granted petitions from environmental groups who argued the standards were not strict enough to protect human health. Industry groups argued that the...

A district court ordered EPA to issue federal implementation plans fully resolving interstate transport obligations under the CAA's "good neighbor" provision for the 2008 ozone NAAQS. EPA conceded that it missed the deadline to do so under the Act. The Agency also acknowledged that it was feasible t...

The Tenth Circuit refused to stay pending interlocutory appeal a lower court order staying BLM's waste prevention rule, which was issued to reduce the venting, flaring, and leaking of natural gas emissions during oil and gas production activities on onshore federal land. California, New Mexico, and ...

The D.C. Circuit upheld amendments EPA made to its CAA regional consistency regulations that allow regional offices to act counter to national policies when ordered to do so by federal circuit courts. EPA issued the amended regulations in 2016 in response to the D.C. Circuit's decision in National E...

A Texas court, ruling on a petition for pre-suit discovery, held that it would have jurisdiction over a major oil corporation's potential lawsuit against several California cities that have filed suit against it relating to climate change. The company's potential claims would allege, among other thi...