2025 Look Ahead
Posted: January 15th, 2025
Part 1 2025 Look Ahead // Colin McCall Happy New Year to our colleagues, clients, and partners as we enter 2025. Each January, we are excited to outline observations and insights that will help with proactive planning around environmental, health, […]
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Impacts of Lowered PM2.5 NAAQS to Take Shape in 2025 and other NAAQS Related Updates
Posted: January 13th, 2025
On February 7, 2024, the United States Environmental Protection Agency (U.S. EPA) finalized the particulate matter (PM) National Ambient Air Quality Standards (NAAQS) reconsideration process and lowered the annual PM less than 2.5 microns (PM2.5) NAAQS from 12 micrograms per […]
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“Here We Go Again” – 2025 New Source Review Look Ahead
Posted: January 13th, 2025
It’s January 6, 2025 and exactly eight years since the beginning of the first Trump administration. In order to look ahead, I first needed to “look back” to January 2017 to see what my colleague, John Egan, wrote in a […]
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U.S. EPA Releases TANKS 5.1
Posted: December 18th, 2024
On October 9, 2024, United States Environmental Protection Agency (U.S. EPA) released version 5.1 of their TANKS software in conjunction with updates to Section 7.1 – Organic Liquid Storage Tanks of the AP-42 Compilation of Air Pollutant Emission Factors. TANKS […]
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U.S. EPA Finalizes Revisions to the Secondary NAAQS
Posted: December 18th, 2024
On December 10, 2024, the United States Environmental Protection Agency (U.S. EPA) issued its finalized revisions to the secondary National Ambient Air Quality Standards (NAAQS). The relatively minor proposed changes, first proposed in April 2024, only affect the secondary standards […]
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U.S. EPA Releases Proposed Updates to Stationary Combustion Turbines NSPS
Posted: December 4th, 2024
On November 22, 2024, U.S. Environmental Protection Agency (EPA) proposed the first of what is expected to be three new or revised rules related to the emissions of criteria pollutants, air toxics, and greenhouse gasses (GHG) for stationary combustion turbines. […]
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U.S. EPA Has Revised its Standards for New and Modified Volatile Organic Liquid Storage Tanks
Posted: November 13th, 2024
On October 15, 2024, the U.S. Environmental Protection Agency (U.S. EPA) published final amendments to the Standards of Performance for New Stationary Sources, or New Source Performance Standards (NSPS), for Volatile Organic Liquid (VOL) Storage Vessels (Including Petroleum Liquid Storage […]
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CISWI Federal Plan Finalized
Posted: October 16th, 2024
On September 16, 2024, the U.S. Environmental Protection Agency (U.S. EPA) signed a final rule containing the Federal Plan requirements at 40 CFR Part 62, Subpart IIIa to implement the emissions guidelines for existing facilities under the commercial and industrial […]
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Updates on the Lowered PM2.5 NAAQS
Posted: September 10th, 2024
It’s been four months since the lowered annual particulate matter less than 2.5 microns (PM2.5) National Ambient Air Quality Standard (NAAQS) became effective on May 6, 2024, and seven months since my last 4TR article on the topic. I thought […]
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New Jersey Environmental Justice Impact Statement Guidance
Posted: July 31st, 2024
On April 17, 2023, the New Jersey Department of Environmental Protection (NJDEP) published the Environmental Justice (EJ) Rule under New Jersey Administrative Code (N.J.A.C.) 7:1C. The EJ Rule is applicable to any major source facility, or other type of facility […]
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