The Eighth Circuit upheld FERC's decision to place a Colorado energy wholesaler into Zone 17 of a regional transmission organization authorized by the Commission to provide electric transmission services across a multistate region. A member of Zone 17 argued that FERC's decision was arbitrary and ca...

The D.C. Circuit granted a petition to review EPA's 2017 rule revising its emission standard for hazardous air pollutants (HAPs) emitted from pulp mill combustion sources. Environmental groups argued that EPA was required under §112(d)(6) of the CAA to consider the adequacy of the standard to contr...

The D.C. Circuit affirmed dismissal of an environmental group's request to compel EPA to produce guidelines for commercial or industrial solid waste incinerators (CISWI) and other categories of solid waste incinerators (OSWI). The group argued that the Agency failed to comply with nondiscretionary d...

The Kansas Supreme Court held unlawful a rate design approved by the Kansas Corporation Commission under which utilities charged residential customers generating their own electricity from a renewable source (DG customers) a higher price than they charged non-DG customers. The utilities argued that ...

The D.C. Circuit vacated a 2018 EPA rule that instituted a complete vacatur of its 2015 rule blocking the use of hydrofluorocarbons as replacements for ozone-depleting substances. An environmental group argued the 2018 rule was invalid because it was a legislative rule and was thus improperly promul...