4 The record articles

4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.

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Proposed Primary and Secondary Ozone NAAQS Standards

Posted: December 16th, 2014

In what is surely to be a hotly contested regulatory action, U.S. EPA proposed to lower the primary (to provide public health protection) and secondary (to provide public welfare protection) National Ambient Air Quality Standards (NAAQS) for…

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Proposed Boiler MACT Reconsiderations Released

Posted: December 3rd, 2014

U.S. EPA has released the proposed reconsideration of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters (40 CFR Part 63, Subpart DDDDD) and of the NESHAP for Area Sources: Industrial, Commercial, and Institutional Boilers…

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April Showers Bring…Proposed Modeling Updates for 2015!

Posted: November 24th, 2014

If there’s one thing that the regulated community can agree on, it’s their concern over the challenges related to air quality modeling.  Industry is all too familiar with the conservative modeling results for their proposed projects, which can trigger stricter emissions controls…

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More Proposed Changes to PC MACT

Posted: November 18th, 2014

On November 4, 2014, the U.S. Environmental Protection Agency (U.S. EPA) published a proposal to amend two (2) rules issued in February 2013: the National Emission Standards for Hazardous Air Pollutants…

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More on RACT 2

Posted: November 17th, 2014

On Friday November 7, 2014, the Pennsylvania Air Quality Technical Advisory Committee (AQTAC) voted 11 to 5 to approve the proposed draft final “Additional RACT Requirements for Major Sources of NOX and VOCs” (RACT 2) regulations for consideration…

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