Status: Response filed by plaintiffs in opposition to PSCO's motion for intervention. [ 11/30/2020 ]
Description: Lawsuit to compel Colorado state defendants to publish a proposed rule setting forth measures to meet statutory greenhouse gas reduction goals.
Status: First amended complaint filed. [ 10/30/2019 ]
Description: Challenge to the Colorado Air Quality Control Commission's adoption of a modified version of the California Zero Emission Vehicle program.
Description: Challenge to Colorado’s adoption of California’s low emission vehicle emission standards (LEV III) for light-duty passenger vehicles and trucks and medium-duty passenger vehicles.