4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Exploring Plantwide Applicability Limit (PAL) Basics
Posted: September 27th, 2012
Initiating a project that triggers major new source review (NSR) requirements or an NSR applicability analysis at an existing major stationary source is arguably more difficult now than at any time since the inception of the Clean Air Act (CAA). […]
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ALL4’s: Is That Your Final Answer?
Posted: September 25th, 2012
Test your knowledge across the environmental field, on the building blocks of air quality rules, on ALL4 general trivia, and with brain teasers that have perplexed us…Take on ALL4’s Is That Your Final Answer?
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Spare Parts and Permit Conditions
Posted: September 25th, 2012
A seemingly simple question was recently raised by an ALL4 client regarding the level of spare parts inventories that facilities are obligated to keep on hand for air pollution control equipment, as required by applicable air permits…
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September 2012 Pennsylvania Air Quality Technical Advisory Committee Update
Posted: September 17th, 2012
The September 2012 Air Quality Technical Advisory Committee (AQTAC) meeting was held on Wednesday, September 12th. The agenda was very full, with three proposals that the Pennsylvania Department of Environmental Protection (PADEP) was seeking approval…
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Mind Your NAAQS: An Update
Posted: September 17th, 2012
The pre-election regulatory lull is in full swing, so we thought it was a good time to get fully caught up on the latest National Ambient Air Quality Standards (NAAQS) news…
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U.S. EPA Proposed NSPS Revisions – Stationary Gas Turbines and Stationary Combustion Turbines
Posted: September 10th, 2012
In the August 29, 2012 Federal Register, U.S. EPA published a proposal to amend various portions of the New Source Performance Standards (NSPS) for Stationary Gas Turbines (40 CFR Part 60 Subpart GG) and Stationary Combustion Turbines (40 CFR Part 60 Subpart KKKK)…
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Recent Non-Hazardous Secondary Material (NHSM) Determinations
Posted: September 10th, 2012
There has been a lull in U.S. EPA’s issuance of the “comfort” letters requested by the regulated community for non-hazardous secondary materials (NHSM) legitimacy determinations. However, the lull was recently broken…
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More Greenhouse Gas Reporting Rule Revisions
Posted: September 4th, 2012
On August 24, 2012 in Federal Register Vol.77, No 165, U.S. EPA announced the finalization of amendments to specific provisions of the Greenhouse Gas Reporting Rule. The amendments are intended to provide greater clarity and flexibility to facilities subject to…
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Affirmative Defense Under NESHAP General Provision Requirements
Posted: August 29th, 2012
On October 16, 2009, the U. S. District of Columbia Circuit Court (the Fifth Circuit Court) vacated the “Startup, Shutdown, and Malfunction (SSM) exemption” allowed under the General Provisions in Part 63, Subpart A of the National Emission Standards for […]
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ALL4’s: Is That Your Final Answer?
Posted: August 27th, 2012
Test your knowledge across the environmental field, on the building blocks of air quality rules, on ALL4 general trivia, and with brain teasers that have perplexed us…Take on ALL4’s Is That Your Final Answer?
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