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Air

Environmentalists threaten EPA with suit to force states' SO2 plans

Environmental groups claim that EPA is violating the Clean Air Act by not compelling several states to submit plans for meeting the agency's sulfur dioxide (SO2) air standard.

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EPA eyes February for proposing year-round E15 sales waiver

EPA's goal to propose authorizing year-round sales of 15 percent ethanol fuel (E15) by February is intended to allow issuance of a final rule approving the decision by June 1.

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Lifecycle Study Finds GHG Cuts From LNG Project, Warns Of Domestic Gas

A new study of the lifecycle greenhouse gas emissions from a proposed liquified natural gas (LNG) project to provide fuel for marine operations near Seattle finds that the effort would cut overall GHGs by displacing petroleum-based fuels, though the finding depends on the natural gas being sourced only from Canada.

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Wyoming urged to shield oil and gas air controls from EPA rollback

One environmentalist is hopeful that state officials in an upcoming final guidance intend to make clear that the state will stick with a semi-annual inspection requirement, regardless of any changes to EPA's rules.

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EPA Urged To Speed RMP Changes After Declining Appeal Of Delay Ruling

Chemical industry attorneys are urging EPA to accelerate its plan to undo Obama-era changes tightening the risk management plan (RMP) facility safety program, after the agency opted against appealing a court ruling that scrapped the Trump administration's delay of the revisions and reinstated looming compliance deadlines.

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EPA Finalizes Rule Weakening Obama-Era Resins Manufacturing NESHAP

EPA has finalized a rule that weakens an Obama-era national emissions standards for hazardous air pollutants (NESHAP) rule for amino-phenolic resins manufacturing and is also delaying implementation of the softened rule, in response to petitions from resin products urging the Trump administration to revise the regulation.

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EPA, California spar over 'counter' to vehicle GHG rollback

EPA's acting chief Andrew Wheeler claims California officials previously promised to submit a counterproposal to the federal greenhouse gas vehicle rule rollback plan.

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DOJ Plans To Renew Call For Supreme Court To Halt Youth Climate Case

The Department of Justice (DOJ) is planning to renew its call for the Supreme Court to halt a novel climate change case brought by 21 youth plaintiffs, just weeks before the long-pending and high-profile matter is scheduled to go to trail in a federal district court in Oregon.

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Environmentalists ask EAB to scrap Arizona gas utility's air permit

An Arizona county and power company are fighting Sierra Club's Environmental Appeals Board challenge that claims a gas plant's 'minor source' air permit is 'unenforceable.'

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Former CASAC Chair Says Panel Dismissals Will Weaken NAAQS' Legality

Former EPA Clean Air Scientific Advisory Committee (CASAC) Chairman Chris Frey is warning the agency's sudden disbanding of advisory panels for reviewing its ozone and particulate matter (PM) standards will weaken the quality of the reviews and make the resulting standards more vulnerable to legal challenges.

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