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A district court vacated EPA's stay of two rules setting forth emission standards from boilers and commercial and industrial solid waste incineration units. EPA issued the rules on March 21, 2011, and shortly thereafter several parties filed petitions for review challenging the legal sufficiency of ...

A California appellate court affirmed a lower court decision dismissing a petition challenging an air district's abatement order directing the owners of an open-pit mining operation to cease operation of the central plant equipment and all internal combustion engines with a rating greater than 5...

A district court held that Washington state must establish reasonably available control technology (RACT) for greenhouse gas emissions. Based on its plain language, the RACT provision contained in Washington's federally approved SIP is not discretionary and requires the state's agencies to estab...

The D.C. Circuit held that a home builders association lacked standing to challenge the U.S. Army Corps of Engineers' issuance of nationwide permit (NWP) 46, which allows persons to secure approval for qualifying discharges into "waters of the United States" without going through the more laborious ...

The D.C. Circuit remanded EPA's NESHAPs for portland cement facilities. While EPA was establishing the NESHAPs, it was simultaneously developing a definition of commercial and industrial solid waste incinerators (CISWI), which would create a separate category of pollutant sources subject to emis...

The D.C. Circuit held that a home builders' association lacked standing to challenge EPA's and the U.S. Army Corps of Engineers' determination that two reaches of the Santa Cruz River in southern Arizona constitute "traditional navigable waters" (TNW) under the CWA. Although the association has spen...