The Fifth Circuit held that the CAA does not preempt a local ordinance that allows taxicabs certified to run on compressed natural gas (CNG) to cut ahead of gasoline-powered taxis in the queue for picking up passengers at Love Field Airport in Dallas. The ordinance does not create an enforceable sta...
The U.S. Supreme Court struck down portions of the Los Angeles port's "Clean Truck Program," which was designed in part to reduce emissions related to port operations, including emissions from trucks. The concession agreements implementing the plan set forth a number of provisions covering, among ot...
The D.C. Circuit upheld EPA's revised NESHAPs for secondary lead smelting facilities. In 2012, acting pursuant to CAA §§112(d)(6) and 112(f)(2), EPA revised the 1995 emissions standards for secondary lead smelting facilities, reducing allowable emissions by 90% and requiring smelters to totally en...
A district court dismissed a city's lawsuit against California state and local air districts challenging fees it must pay to mitigate wind-blown dust from a dry lake bed that exceed state and federal air standards. Section 42316 of the California Health and Safety Code authorized the district to ord...
The Ninth Circuit, in an amended opinion, denied an environmental group's petition challenging EPA's decision to grant two air permits authorizing exploratory drilling operations in the Arctic Ocean by a drillship and its associated fleet of support vessels. The permits require the drillship to comp...
A district court held that EPA has no mandatory or nondiscretionary duty to make a determination as to whether lead emissions from general aviation aircraft engines using aviation gasoline endanger the public health or welfare under CAA §231(a)(2)(A). A finding that emissions cause or contribute to...
The Sixth Circuit held that the CAA does not categorically prevent EPA from challenging preconstruction projections of whether and to what extent emissions will increase following construction. The preconstruction projection determines whether the project constitutes a “major modification” and t...
The Eleventh Circuit vacated EPA's 2011 disapproval of Alabama SIP provisions on opacity, thereby reinstating EPA's 2008 approval of opacity limits. EPA's 2011 disapproval was unauthorized by the CAA because EPA failed to make the statutorily required error determination. Neither the text of the fin...
A district court dismissed a nonprofit group's lawsuit seeking to halt EPA studies that expose humans to fine particulate matter. The challenged EPA conduct does not constitute final agency action. EPA's alleged failure to comply with an agency rule does not constitute "agency action". And even if i...
The D.C. Circuit vacated EPA's 2012 projection of cellulosic biofuel production under the renewable fuel standard (RFS) program. As part of the RFS program, CAA §211(o)(7)(D)(i) requires EPA to determine the "projected volume of cellulosic biofuel production" for each calendar year based on an esti...