4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
ALL4’s 10 Year Anniversary
Posted: March 23rd, 2012
10 Years – WOW! All the “stuff” that goes along with starting a business on the one hand seems like yesterday and on the other hand feels like it was an eternity ago!
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Greenhouse Gas Tailoring Rule – Step 3 and Beyond
Posted: March 21st, 2012
It is hard to believe that the two-year anniversary of the Greenhouse Gas Tailoring Rule will be upon us in just a few months. You remember, don’t you? It was on June 3, 2010 when U.S. EPA published the Prevention […]
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10th Conference on Air Quality Modeling
Posted: March 21st, 2012
ALL4 attended and presented at U.S. EPA’s 10th Conference on Air Quality Modeling in Research Triangle Park, NC March 13th through 15th. The purpose of the conference, mandated by Section 320 of the Clean Air Act, is to provide an […]
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U.S. EPA Proposes Revisions to Address Error in New Source Review Regulations
Posted: March 21st, 2012
On Friday March 16, 2012, the U.S. EPA proposed to revise the definition of regulated NSR pollutant under the Prevention of Significant Deterioration (PSD) regulations (40 CFR 51.166 and 52.21), and under the “Emission Offset Interpretative Ruling” (40 CFR Part […]
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U.S. EPA Issues No Action Assurance Letter for Area Source Boiler Initial Tune-Up Deadline
Posted: March 19th, 2012
On Tuesday, March 13, 2012, U.S. EPA issued a No Action Assurance (NAA) Letter for the March 21, 2012 initial tune-up work practice standard deadlines codified in 40 CFR Part 63, Subpart JJJJJJ – National Emission Standard for Hazardous Air […]
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U.S. Senate Votes on Boiler MACT
Posted: March 9th, 2012
On Thursday, March 8, 2012, the U.S. Senate voted to defeat an amendment designed to delay the U.S. EPA’s efforts to implement the provisions of 40 CFR Part 63, Subpart DDDDD – National Emission Standards for Hazardous Air Pollutants for […]
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GUEST ARTICLE: Pennsylvania Approves Unconventional Gas Fee
Posted: March 1st, 2012
On February 13, 2012, Pennsylvania Governor Tom Corbett signed House Bill No. 1950 into law, approving major changes to the Pennsylvania Oil and Gas Act, most notably an impact fee on unconventional drilling operations. Along with the impact fee, the […]
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New Source Review – What Could Possibly Be Lurking Out There?
Posted: March 1st, 2012
If you have been reading 4 The Record, then you are, without doubt, very cognizant of the rapid and profound changes that are occurring with regard to air quality regulations in the United States. Without getting into the gory details, […]
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More NAAQS News
Posted: February 29th, 2012
U.S. EPA has announced that all areas in the United States have been designated as either “attainment” or “unclassifiable” with respect to the 1-hour nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS). The finalized designations mean that facilities will […]
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A Preponderance of Evidence
Posted: February 29th, 2012
U.S. EPA has been adding an “affirmative defense” provision in MACT standards to address emissions that occur during period of malfunctions.
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