Air Quality Permitting

Ozone Nonattainment: Impact to Air Permitting

Posted: May 9th, 2022

Under the Clean Air Act (CAA), the U.S. Environmental Protection Agency (U.S. EPA) sets National Ambient Air Quality Standards (NAAQS) for pollutants considered harmful to public health and the environment. A geographical area (which can vary from a partial county […]

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Pennsylvania’s Oil and Gas RACT Rule Finalized

Posted: May 3rd, 2022

UPDATE: On May 4, 2022, PADEP withdrew the Pennsylvania Oil and Gas RACT Rule from consideration for final approval by the Independent Regulatory Review Commission, which was scheduled to vote on May 19, 2022.  The rule will undergo further legislative […]

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The Pennsylvania RACT III Rule Is Almost Here

Posted: April 25th, 2022

Pennsylvania’s draft rule known as “RACT III” [25 Pa. Code §§ 129.111-129.115, Additional RACT Requirements for Major Sources of NOX and VOCs for the 2015 Ozone NAAQS] has been slowly making its way towards finalization but it’s not there quite […]

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ALL4’s Texas 2022 Look Ahead

Posted: January 18th, 2022

Is it just us, or did time fly?  While we ended 2021 with COVID still around us, it’s unclear if we are heading into 2022 or 2020-too… I am hoping for a year of lifting mandates and a return to […]

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2022 Look Ahead

Posted: January 5th, 2022

This is a multi-part series consisting of 20 articles to celebrate ALL4’s 20th anniversary. Stay tuned for part 2 coming soon! Introduction // Colin McCall I am excited and honored to once again introduce ALL4’s annual Look Ahead.  Part of […]

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Pennsylvania Updates Air Permitting Exemption Document

Posted: September 15th, 2021

On June 26, 2021, the Pennsylvania Department of Environmental Protection (PADEP) published a notice in the Pennsylvania Bulletin, finalizing amendments to the Air Quality Permit Exemptions document (guidance or exemption document), PADEP ID: 275-2101-003, which was last updated in 2018.  This […]

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What’s New with New Source Review?

Posted: August 18th, 2021

During the previous administration, we saw quite a bit of work by the U.S. Environmental Protection Agency (EPA) around New Source Review (NSR).  As a reminder, the NSR permit program includes the prevention of significant deterioration (PSD) and the nonattainment […]

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