The Environmental Defense Fund, Environmental Integrity Project, Natural Resources Defense Council, and Sierra Club (collectively, “EDF”) filed in the United States Court of Appeals for the District of Columbia Circuit an...more
On Monday, the 9th Circuit Court of Appeals ruled that EPA does not have an obligation to amend PSD regulations for a criteria pollutant within two years of revising the National Ambient Air Quality Standard for that...more
In Sierra Club v. EPA, issued today, The Court of Appeals for the District of Columbia rejected EPA’s rules governing “significant impact levels” and “significant monitoring concentrations” for determining PSD permitting...more