The Tenth Circuit held that an Oklahoma city and a Texas city that entered into water contracts with one another lack standing to challenge Oklahoma's water appropriation permitting process as unconstitutional under the Commerce Clause. The claims at issue here are based on a substantive provisi...

A district court held that an energy company did not violate the CAA when it failed to obtain a new source review (NSR) permit prior to renovating electric utility steam generating units at its Monroe, Michigan, power plant. The government argued that a permit was required because the renovations co...