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EPA sends PM2.5 'precursor' air quality planning guide for OMB review

The guidance would finalize an Obama EPA plan that drew criticism from some state and industry groups that said it would lead to overly strict limits and from environmentalists who said it was not tough enough.

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ACE Comments Spark Contentious Debate Over Legality Of NSR Changes

EPA is facing starkly different interpretations of the legality of its plan to ease the threshold for triggering strict new source review (NSR) air permits for coal plants complying with its proposed utility climate rule, reviving a decades-old debate with pro-coal industry groups backing the changes and environmentalists strongly opposed.

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Judge rejects part of suit seeking U.S. climate reports to United Nations

>The judge has given environmentalists 30 days to explain why they suffered injury from the administration's failure to submit the reports.

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Environmentalists, Power Sector Wage 11th-Hour Effort To Preserve MATS

Environmentalists and the power sector are waging an 11th-hour effort calling on the White House and EPA to preserve the Obama-era mercury emissions rule for utilities, with environmentalists aiming to keep the rule intact while utilities that have invested millions of dollars to comply want it retained with changes to ease some requirements.

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Draft EPA Guide Redefining 'Ambient Air' Would Ease Air Law Compliance

EPA in new draft guidance is floating a new definition of “ambient air” that would make it easier for industries and regulators to exclude facilities from Clean Air Act requirements if the general public has no access to them, because the revised definition expands the scope of when areas deter or preclude access by the general public.

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EPA eases oil industry compliance with refinery air rules

EPA is moving to ease industry compliance with its refinery air regulations, touting benefits to the oil sector as a result of its decision to weaken various requirements.

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New EPA Policy For Reviewing State Programs Calls Intervention 'Last Option'

Acting EPA Administrator Andrew Wheeler has quietly issued new guidance that limits agency oversight of states' delegated programs and calls federal intervention a “last option” even when states allow for significant noncompliance, an approach that is drawing criticism from environmentalists who say it ignores statutory mandates to review some permits.

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EPA Expands States' Ozone NAAQS Waivers But Avoids Key Legal Question

EPA's final rule for how states should implement the 2015 ozone national ambient air quality standard (NAAQS) expands their ability to cite international emissions as a reason to waive some emissions control requirements, but the regulation sidesteps key legal questions on weakening air pollution controls raised by an appeals court's ruling.

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Delaware sues EPA over interstate ozone petition denial

Delaware has joined Maryland and environmentalists in suing EPA over the agency's denial of petitions asking it to regulate air emissions from power plants in other states.

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EPA 'Aggregation' Policy Shift May Help Facilities Avoid Strict NSR Permits

EPA is reverting to a 2009 definition of “project aggregation” for Clean Air Act permitting that may help facilities avoid stringent new source review (NSR) permits, because the revived policy uses several tests that make it easier to argue that facility activities should not be aggregated, or combined, and therefore are exempt from NSR permits.

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