The D.C. Circuit, in an unpublished opinion, dismissed a petition challenging an EPA computer model that states must use to estimate motor vehicle emissions when developing their strategies to comply with the CAA. Kansas and Nebraska, as well as two nonprofit organizations, alleged that the model is...

The Fifth Circuit upheld an individual's sentence and conviction for wire fraud, money laundering, and CAA violations for selling false renewable fuel credits. The individual represented to EPA and to fuel companies seeking to purchase renewable fuel credits that he manufactured renewable fuels when...

A district court dismissed a lawsuit brought by individual miners and various mining groups, associations, and businesses challenging an Oregon law that temporarily bans instream motorized mining to protect water quality and fish habitat. The law, with some exceptions, temporarily prohibits instream...

A district court ordered EPA to either promulgate revised emissions standards for the the pulp mill and nutritional yeast manufacturing source categories, or issue a determination that such standards are not required under the CAA. EPA promulgated emissions standards for both of these major source c...