4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
ALL4 Formally Announces Climate Change Services and Updates Climate Change Website
Posted: August 10th, 2008
The issue of climate change continues to advance on a scientific, legislative, and regulatory basis as an area of air quality that will impact all industry types. ALL4’s vast air quality expertise allows ALL4 to assist clients in all areas […]
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Revised PSD Class I Area Air Dispersion Modeling Guidance
Posted: August 3rd, 2008
The National Park Service, U.S. Forest Service, and the U.S. Fish and Wildlife Service have made available for public comment the revised Federal Land Managers (FLMs) Air Quality Related Values Work Group Phase I document (FLAG document). Since its initial […]
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PM2.5 Emission Reduction Credits – A Lesson in Supply and Demand
Posted: July 23rd, 2008
U.S. EPA has issued final rules governing the implementation of the New Source Review (NSR) program for particulate matter less than 2.5 micrometers in diameter (PM2.5) which are effective on July 15, 2008. This rule finalizes previously proposed NSR program revisions for sources […]
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Department of Homeland Security Update
Posted: July 17th, 2008
The Department of Homeland Security (DHS) has begun distributing the initial notification letters to those facilities that submitted a Top-Screen analysis…
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BREAKING NEWS – Clean Air Interstate Rule Overturned
Posted: July 14th, 2008
On Friday July 11th, the U.S. Court of Appeals for the District of Columbia Circuit struck down the Clean Air Interstate Rule (CAIR) and the CAIR Federal Implementation Plan (FIP). The rule was vacated in its entirety and remanded back to the United States […]
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U.S. EPA Proposes to Amend Portland Cement NSPS Rule
Posted: June 12th, 2008
On May 30, 2008 and in the June 16, 2008 Federal Register, the United States Environmental Protection Agency (U.S. EPA) proposed to amend the Standards of Performance for New Portland Cement Plants (NSPS). These rules are cited at 40 CFR […]
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Emergency Generators Now Regulated
Posted: June 5th, 2008
Are you planning to install a new emergency generator or modify an existing emergency generator? If so, you will likely need to comply with one or more of the following Federal emergency generator regulations:
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Boiler MACT Information Collection Request
Posted: May 24th, 2008
U.S. EPA has submitted a request to the Office of Management and Budget (OMB) to approve the Information Collection Request (ICR) related to the vacated Boiler MACT (40 CFR Part 63, Subpart DDDDD – Industrial, Commercial, and Institutional Boilers and […]
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Pennsylvania Proposes Glass Furnace Nitrogen Oxide (NOx) Rule
Posted: May 22nd, 2008
The Pennsylvania Department of Environmental Protection (PADEP) published the proposed rule “Control of NOx Emissions from Glass Melting Furnaces” in the April 19, 2008 Pennsylvania Bulletin. The proposed rule includes additions to Title 25, §121.1 – Definitions, and adds the […]
Read articleU.S. EPA Proposes to Strengthen Lead NAAQS
Posted: May 19th, 2008
On May 2, 2008 and in a subsequent May 20, 2008 Federal Register notice, U.S. EPA proposed revisions to the Lead (Pb) National Ambient Air Quality Standards (NAAQS)…
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