SIPs

Interpreting the Clean Air Act After Chevron’s Demise

A map of Californias Central Valley highlighting regions in shades of red, orange, and yellow, indicating different data zones across cities like Fresno, Visalia, Bakersfield, and Modesto.

A recent Ninth Circuit case requires states to do more to achieve clean air goals.

Last week, the Ninth Circuit decided Committee for a Better Arvin v. EPA, which is both a significant air pollution case and an interesting case study in how the Supreme Court has changed judicial review of agency actions. Applying what it considered to be the best interpretation of an ambiguous statute, the Court required tougher air pollution controls for the San Joaquin Valley. The dissent argued that the decision would be a disaster in terms of policy. But is that even relevant under the Loper Bright ruling?

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Briefly noted: four recent federal appellate decisions

Here are links to and brief descriptions of four interesting recent decisions from federal appellate courts: Wilderness Society v. Kane County, 10th Cir., en banc, 1/11/2011. This decision is the latest in a long-running dispute over the extent to which Kane County in southern Utah can authorize the use of off-road vehicles on federal lands. …

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