4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Decarbonization in the Aerospace Industry – The Path to Net-Zero by 2050
Posted: May 11th, 2023
Did you know that the aerospace industry is responsible for around 2.5% of global carbon dioxide (CO2) emissions1? Did you also know that, similar to other industries, the industry has adopted the goal of reaching net-zero carbon emissions by 2050? […]
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U.S. EPA’s Proposed Updates to Air Emissions Standards For Ethylene Oxide Commercial Sterilization Facilities
Posted: May 9th, 2023
More than three years after posting an Advance Notice of Proposed Rulemaking (ANPRM), review of information submitted by industry in response to Clean Air Act (CAA) Section 114 requests, and significant public and industry outreach, the U.S. Environmental Protection Agency […]
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Chemical and Petrochemical Industry Proposed Updates to EMACT, MON, OLD MACT, and RSR
Posted: May 4th, 2023
What Rules are Changing? On April 27, 2023, the United States Environmental Protection Agency (U.S. EPA) proposed amendments as a result of reconsideration of the following National Emission Standards for Hazardous Air Pollutants (NESHAP): Generic Maximum […]
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Offshore Wind Farms & Air Permitting Challenges
Posted: May 4th, 2023
The race towards the Biden administration’s goal of having 30 gigawatts of offshore wind online by 2030 has led to a flurry of projects aimed at helping the United States achieve this objective, with construction of one major 800-megawatt offshore […]
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New Jersey Environmental Justice Final Rule Effective April 17, 2023
Posted: May 3rd, 2023
In 2018, New Jersey Governor Phil Murphy issued Executive Order 23, ordering all state executive branch agencies to begin incorporating environmental justice (EJ) principles into their policies and procedures. The New Jersey Department of Environmental Protection (NJDEP) is one of […]
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Massachusetts & New York Cumulative Impact Rules
Posted: April 27th, 2023
Cumulative impacts, in the context of environmental justice (EJ), refer to a proposed project’s direct environmental impact across all media (air, water, waste, etc.) in conjunction with other nearby sources and existing social stressors in the surrounding communities. This impact […]
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Recent Revisions to U.S. EPA Reference Method 23
Posted: April 26th, 2023
The U.S. Environmental Protection Agency (EPA) has released a revised version of 40 CFR Part 60, Appendix A –Method 23. [88 Fed. Reg. 16732 (Mar. 20, 2023)]. Even the title changed: from “Determination of Polychlorinated Dibenzo-p-Dioxins and Polychlorinated Dibenzofurans from […]
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A Summary of Proposed Updates to the Mercury and Air Toxics Standards for Power Plants
Posted: April 19th, 2023
On April 5, 2023, the U.S. Environmental Protection Agency (U.S. EPA) signed proposed revisions to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Coal- and Oil-Fired Electric Utility Steam Generating Units (EGUs), also known as the Mercury and […]
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Drum Reconditioners: Are You Sending RCRA Empty Containers?
Posted: April 18th, 2023
United States Environmental Protection Agency (U.S. EPA) is currently reviewing compliance with the definition of RCRA “empty”. U.S. EPA completed a damage case report to improve their understanding of how the drum reconditioner industry operates and to document incidents at […]
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Data Quality Part 1: What Do We Mean by Data Quality?
Posted: April 17th, 2023
When making a measurement, we are looking to answer a question. We want and need our measurement to be robust at the levels that address the underlying question. That concept seems simple and obvious, but it gets into the weeds […]
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