The court affirms a district court decision that New York Air Pollution Mitigation Law §66-k is preempted by the Clean Air Act (CAA) Title IV cap-and-trade system and violates the Supremacy Clause of the U.S. Constitution. Section 66-k requires the assessment of an air pollution mitigation offs...

The court holds that an electric utility violated the Clean Air Act (CAA) when it completed 11 construction activities that modified a coal-fired electric-generating facility without first calculating post-construction emissions and obtaining preconstruction CAA prevention of significant deteriorati...

The court holds that §21 of Article XVII to the South Dakota Constitution, which prohibits corporations or syndicates from acquiring or obtaining an interest in land used for farming and from otherwise engaging in farming in South Dakota, violates the dormant U.S. Commerce Clause of the U.S. Co...

The court vacates and remands a trial court holding that increased stormwater drainage from the construction of a U.S. Postal Service facility in West Virginia did not constitute a taking of a neighboring mall owner's property. The trial court held that no taking occurred because the owner failed to...

The court holds that a local transportation control measure, adopted as part of California's state implementation plan to attain federal air quality standards in the San Francisco Bay Area, does not impose an enforceable obligation on the local transportation commission to increase public transit ri...

The U.S. Supreme Court held that certain aspects of local fleet rules do not escape preemption under CAA §209(a) simply because they address the purchase of vehicles rather than their manufacture or sale. The fleet rules prohibit the purchase or lease of vehicles by fleet operators that do not ...

The Sixth Circuit upheld EPA's redesignation of Cleveland, Ohio, from nonattainment to attainment for particulate matter under CAA §107(d)(3)(E). An environmental group argued that EPA illegally waived statutory requirements when it redesignated the area to attainment by not fully approving the...

A California appellate court upheld the dismissal of a landowner's inverse condemnation claim against California in which it sought to avoid the effect of an irrevocable offer to dedicate land for public use. The dedication was made by a prior owner of the land in 1983 as a condition of a permit to ...

The Ninth Circuit reversed a lower court decision to find a possible equal protection violation when a state water quality control board's overzealous regulation of a ski resort's water discharges may have been motivated by personal animus, but affirmed the decision on all remaining claims. When the...

The Federal Circuit reversed a lower court decision that a commercial fishing company suffered a taking when its fishing permits were revoked under 1997 and 1998 Appropriations Acts. The Appropriations Acts cancelled the company's existing permits and authorization letter and prevented any further p...