The Ninth Circuit upheld a lower court decision dismissing an environmental group's citizen suit requesting EPA to issue more stringent regulations for ozone pollution under the PSD program. The group alleged that the EPA Administrator has a nondiscretionary duty to issue revised ozone regulations u...

The D.C. Circuit held that Alaska's lawsuit challenging the U.S. Forest Service's roadless rule is not time barred. The Forest Service issued the roadless rule in 2001. In 2005, the Forest Service repealed it, but the rule was reinstated by court order in 2006. In 2011, Alaska filed its lawsuit, whi...

The Ninth Circuit held that DOT did not violate the CAA or NEPA in its approval of a planned expressway connecting the Ports of Los Angeles and Long Beach, California. In the course of the project’s approval process, DOT conducted an air quality conformity determination under the CAA, which involv...

The D.C. Circuit dismissed automobile industry groups' petition challenging an EPA rule intended to mitigate the misfueling of vehicles and engines with gasoline containing greater than 10% ethanol (E10). Among other measures, the rule prohibits the use of E10 gasoline in certain vehicles, engines, ...

The Tenth Circuit denied petitions for review challenging EPA's approval of a regional cap-and-trade program regulating sulfur dioxide (SO2) emissions to address regional haze over the Colorado Plateau, a Class I area. Under the CAA's regional haze rule for Class I areas, states have the option of u...

A district court granted in part and denied in part motions for summary judgment in a case involving logging projects in the Flathead National Forest. In the case, environmental groups challenged the Forest Service's and FWS' authorization of the Glacier Loon Fuels Reduction and Forest Health Projec...