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

PADEP Provides Technical Guidance on Waste Derived Liquid Fuels
Posted: November 16th, 2009
The Pennsylvania Department of Environmental Protection (PADEP) has finalized revisions to Technical Guidance Document No. 275-2101-009 regarding Waste Derived Liquid Fuels (WDLFs). The requirements in the technical guidance document are for guidance purposes only and are not meant to be […]
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U.S. EPA Establishes Startup/Shutdown Standards Under Subpart VVVVVV
Posted: November 10th, 2009
On October 29, U.S. EPA issued National Emission Standards for Hazardous Air Pollutants (NESHAP) for nine (9) area source categories in the chemical manufacturing sector as a single, combined subpart under 40 CFR Part 63, Subpart VVVVVV. The specific categories […]
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Should You Throw Your SSM Plan Out the Window Now That the DC Circuit Has Issued Their Mandate Vacat
Posted: November 4th, 2009
On October 16, 2009, the United States Court of Appeals for the District of Columbia Circuit (the Court) issued its mandate vacating the Startup, Shutdown, and Malfunction (SSM) exemption provisions of 40 CFR §§63.6(f)(1) and (h)(1). The Court issued its original […]
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HMIWI Final NSPS/EG: SSM Exemption Removed, Perceived MACT-on- MACT/Pollutant-by-Pollutant Approach
Posted: October 29th, 2009
We posed the question in the March 2009 issue of 4 The Record as to why a rule about hospital, medical, and infectious waste incineration would get the attention of the American Forest & Paper Association (AF&PA), the American Chemistry Council (ACC), the Alliance […]
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U.S. EPA Finalizes Flexible Permit Rule (Again)
Posted: October 26th, 2009
On October 6, 2009, U.S. EPA finalized a flexible permitting rule that was initially proposed on September 12, 2007 (see our February 2008 4 The Record article for an analysis of the proposed rule). The rule was previously finalized on January 13, 2009, […]
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U.S. EPA’s Final PM2.5 Designations
Posted: October 6th, 2009
U.S. EPA has promulgated the final nonattainment area designations for the 24-hour National Ambient Air Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5). PM2.5 is a regulated air pollutant with annual and […]
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U.S. EPA Proposes NESHAP for Chemical Preparations Industry Area Sources
Posted: August 30th, 2009
On August 5, 2009, U.S. EPA published a proposal for the control of hazardous air pollutants (HAPs) from the chemical preparations industry area source category. This source category consists of industrial operations that mix, mill, blend, and/or extrude chemicals that […]
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Proposed Revision to NO2 NAAQS Could Pose Problems Under PSD
Posted: August 23rd, 2009
In the July 2009 issue of 4 The Record, ALL4 included a summary of U.S. EPA’s announcement concerning a proposed new short-term (1-hour) National Ambient Air Quality Standard (NAAQS) for nitrogen dioxide (NO2). The proposed standard will likely range between 150 µg/m3 and 188 µg/m3. […]
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Update: PM2.5 New Source Review Regulations
Posted: August 18th, 2009
On May 16, 2008 U.S. EPA issued a final rule amending the New Source Review (NSR) regulations to add requirements related to particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5). ALL4’s PM2.5 Team published 4 The Record articles […]
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U.S. EPA Proposes Ozone Season Extension
Posted: August 14th, 2009
On July 16, 2009, U.S. EPA proposed revisions to its ambient ozone (O3) monitoring network design requirements. The revisions are in response to the amended primary and secondary National Ambient Air Quality Standards (NAAQS) for O3 that were promulgated on […]
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