The D.C. Circuit denied industry groups' petition for review challenging EPA's 2013 primary NAAQS for fine particulate matter. In the final rule, EPA lowered the level of the particulate matter NAAQS from 15.0 μg/m3 to 12.0 μg/m3, a level slightly lower than the lowest concentrations reported as c...

The D.C. Circuit upheld EPA's renewable fuels standard (RFS) for 2013. Because EPA reduced the cellulosic ethanol blending requirement for 2013 but not the total renewable fuel volume, petroleum refiners filed suit arguing the rule should be vacated. The court disagreed. The CAA provides that if EPA...

The D.C. Circuit affirmed the U.S. Forest Service's decision denying an emergency petition filed by an environmental group seeking “roadless” designation for roughly 1,000 acres on Burnt Mountain in Colorado's Snowmass ski area and suspension of the Aspen Skiing Company’s authorization to cut ...

The Tenth Circuit upheld a lower court decision rejecting the claims of San Juan County and the state of Utah to a public right-of-way, called Salt Creek Road, in Canyonlands National Park. The state and county wish to use their claimed right-of-way to prevent the United States from closing the Salt...