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Volkswagen eyes Supreme Court review of air law preemption claim

The automaker is poised to appeal an appellate court decision that the Clean Air Act does not preempt state and local governments from seeking penalties from the company for its emissions cheating scandal.

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Emory Study Links NO2 Emissions With Worsened COVID-19 Death Rate

Air quality researchers from Emory University in Georgia have found a positive association between long-term exposure to nitrogen dioxide (NO2) and higher rates of death from COVID-19, shifting the focus from earlier studies that linked fine particulate matter (PM2.5) with worsened health outcomes from the disease.

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DOJ seeks to delay response in auto GHG suit records fight

The administration is seeking more time to respond to calls to include in the litigation record interagency documents incorporating EPA staff criticisms of its draft final vehicle greenhouse gas standards rollback.

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Corps aims to undo adverse NEPA ruling on Dakota pipeline

The Army Corps of Engineers is appealing a lower court’s decision that it violated the National Environmental Policy Act when approving a key easement for the Dakota Access Pipeline.

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EPA Plans Major Relaxation Of Air Limits For ‘Small’ Waste Incinerators

EPA is proposing a major relaxation of air pollution limits for small waste incinerators by creating several new “subcategories” of incinerators and excluding the smallest units from stringent regulation, part of a Clean Air Act-mandated review of its emissions rules for incinerators that leaves limits for larger units mostly unchanged.

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Coalition of 21 states launches suit over Trump’s NEPA rule overhaul

The states’ lawsuit is the fourth legal challenge brought against the Trump administration’s broad overhaul of National Environmental Policy Act implementing rules.

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CARB Adopts Low-NOx Truck Rule But Drops 50-State Compliance Option

Backed by a group of Northeastern states, California has adopted landmark low-nitrogen oxide (NOx) standards for heavy-duty diesel trucks that would take effect in model year 2024, though it dropped a voluntary option for companies to meet a softer “50-state” standard and is leaving room for transit buses to be exempt or meet a less stringent limit.

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CBD suit aims to force EPA action on California, Colorado air plans

Environmentalists say EPA has missed Clean Air Act deadlines for making decisions on whether to approve dozens of plans from the two states for meeting federal ozone standards.

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SAFE rule critics seek to include EPA comments in lawsuit record

Opponents of the Trump administration’s vehicle GHG rule rollback want to add to the lawsuit record inter-agency documents that include critical EPA staff comments on draft versions of the final rule.

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3rd Circuit Scraps EPA Approval Of Pennsylvania Power Plant NOx Limits

A federal appeals court has scrapped EPA’s approval of Pennsylvania’s limits on ozone-forming nitrogen oxides (NOx) power plant emissions, demanding the agency either mandate stricter “technology-forcing” controls from the state or impose such standards itself instead of simply “rubberstamping” the “status quo” of utility NOx limits.

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