4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Georgia EPD Update
Posted: June 11th, 2012
While attending recent training, Jac Capp, the Georgia Environmental Protection Division (GAEPD) Air Director, presented insightful information on several air quality issues and initiatives in Georgia.
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Boiler MACT Rules Sent to White House Office of Management & Budget
Posted: June 7th, 2012
In the ongoing saga of the Boiler MACT Rules, U.S. EPA has sent revised versions of the rules to the White House Office of Management & Budget (OMB) for pre-publication review.
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Final Amendments to Petroleum Refinery New Source Performance Standards (40 CFR Part 60 Subpart Ja) Issued By U.S. EPA
Posted: June 5th, 2012
On June 1, 2012, U.S. EPA Administrator Lisa Jackson signed a notice issuing final amendments for 40 CFR Part 60 Subpart Ja, Standards of Performance for Petroleum Refineries for Which Construction, Reconstruction, or Modification Commenced After May 14, 2007.
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More NAAQS News – This Time Ozone
Posted: May 31st, 2012
On March 27, 2008, U.S. EPA revised the National Ambient Air Quality Standard (NAAQS) pertaining to ozone from a maximum 8-hour average concentration of 84 parts per billion (ppb) to 75 ppb.
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Hide and Seek? Final Revisions to 40 CFR Part 60 Subparts D, Da, Db, and Dc Promulgated “Under” MATS Rule
Posted: May 29th, 2012
On February 16, 2012, U.S. EPA finalized the National Emission Standards for Hazardous Air Pollutants From Coal and Oil-Fired Electric Utility Steam Generating Units (EGUs) under Part 63, Subpart UUUUU, otherwise known as the Mercury and Air Toxics (MATS) rule. […]
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SO2 NAAQS Stakeholder Workgroups: Party Like It’s 2010
Posted: May 29th, 2012
U.S. EPA has set the stage for 1-hour sulfur dioxide (SO2) NAAQS stakeholder workgroups to be held on May 30, May 31, and June 1, 2012.
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ALL4’s: Is That Your Final Answer?
Posted: May 28th, 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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“Soft” Engine Certification?
Posted: May 25th, 2012
I came across an interesting little tidbit recently during an engine permitting exercise here in Pennsylvania. A facility was seeking air quality permitting for a number of existing emergency generators each driven by a ~3,000 brake horsepower (bhp), diesel fuel-fired, U.S. EPA Tier II certified engine.
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Browsing the ADI Updates
Posted: May 25th, 2012
From time-to-time, U.S. EPA will publish a Federal Register notice announcing updates to the Applicability Determination Index (ADI). The ADI is a searchable database that contains memoranda issued by U.S. EPA…
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Area Source Boiler MACT Reminder
Posted: May 21st, 2012
The Area Source Boiler MACT (ASBM) rule became effective on May 20, 2011, with a compliance date of March 21, 2014 for all existing boilers located at area sources of hazardous air pollutant (HAP) emissions. Initial notifications were due
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