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Air

CPP Replacement Outlines Begin To Coalesce On Facility-Specific Targets

EPA's upcoming plan to repeal and eventually replace the Clean Power Plan (CPP), expected next month, is likely to return to a facility-specific approach that is being advocated by utility and labor groups that want a replacement rather than an outright repeal of the Obama-era climate rule.

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EPA Seeks SO2 Lawsuit Stay Pending Reconsideration, 5th Circuit Ruling

EPA is asking the U.S. Court of Appeals for the District of Columbia Circuit to sever and hold in abeyance a lawsuit challenging the agency's designation of parts of Texas as out of attainment with federal sulfur dioxide (SO2) air standards, pending a ruling in a related 5th Circuit and EPA's ongoing reconsideration of the designation.

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EPA poised to finalize 2018 RFS after quick OMB review

The White House completed its review of the final 2018 renewable fuel standard in just five days, clearing the path for EPA to promulgate it.

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Automakers Resist Analysis Of Stronger Vehicle Fuel Economy Standards

Auto industry trade groups are urging regulators to treat the current EPA and Department of Transportation vehicle greenhouse gas and fuel economy program as the “upper bound” for what will be required for industry as the agencies review the rules, offering the latest indication that automakers are pushing to ease the standards.

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EPA seeks to clarify use of CO threshold in boiler MACT

EPA is attempting to clarify for appellate judges its use of a specific carbon monoxide threshold as a proxy for regulating air toxics from boilers.

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Backers Ask D.C. Circuit To Reverse Panel's Rejection Of EPA's HFC Rule

Environmentalists and two chemical manufacturers are urging the U.S. Court of Appeals for the District of Columbia Circuit to reverse a split panel ruling vacating EPA's rule to reduce refrigerants that act as potent greenhouse gases, arguing that the agency's interpretation of a key Clean Air Act provision is entitled to deference.

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Environmentalists aim to bolster 'hot-spot' air guide case

Sierra Club and other groups are trying to bolster their case over EPA's “hot-spot” guidance by noting its use in areas out of attainment with federal air standards.

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EPA Sends Ozone 'Thresholds' To OMB, NAAQS Designations Face Delay

EPA has sent for White House review a proposal for the air quality thresholds used to define the severity of areas out of attainment with the 2015 ozone standard, but the agency is yet to issue any designations for nonattainment areas and appears likely to miss a looming Oct. 1 Clean Air Act deadline for finalizing those findings.

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Inspector General Details Upcoming Reviews Of EPA Air Quality Programs

A top EPA Office of Inspector (OIG) official says the office is working on several reviews of major agency air quality programs, including previously announced research into the accuracy of EPA's methods for estimating methane emissions from the oil and gas sector, and a long-pending review of ambient air monitoring data.

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EPA Plans 'Key Revisions' To CSAPR Methods As States Criticize Program

EPA is making “key revisions” to its methods for projecting interstate air pollution from power plants and the oil and gas sector under its Cross-State Air Pollution Rule (CSAPR) emissions trading framework, but several Southern states are criticizing the overall framework as inappropriate for mitigating cross-state air pollution.

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