The Fifth Circuit upheld an EPA rule partially approving and partially disapproving revisions to Texas' SIP concerning civil penalties for excess emissions resulting from startup, shutdown, and malfunction (SSM) activities. Environmental petitioners sought review of EPA's decision to approve a revis...

A Pennsylvania appellate court partially struck down Act 13, which pertains to oil and gas operations in the Marcellus Shale, as unconstitutional. The Act repealed Pennsylvania’s Oil and Gas Act and replaced it with a codified statutory framework regulating oil and gas operations in the Commonweal...

The Supreme Court of Wisconsin held that under state law, a town may not impose conditions on a livestock siting permit to protect surface and groundwater. The state legislature has strictly limited the ability of political subdivisions to regulate the livestock facility siting process. The town ove...

A California appellate court upheld a local air district rule that requires manufacturers of consumer paint thinner and solvent products to limit the use of ozone-forming volatile organic compounds (VOCs) in their products. The district issued to rule to satisfy its federal CAA commitments. A pa...

A district court dismissed a landfill owner's RCRA action in which it sought an injunction requiring the former owner to perform certain remedial and investigative actions at the site. EPA issued the former owner a RCRA cleanup order and permit in 1998. In 2002, the current owner purchased the site ...