4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Fuel Flow Monitoring Systems Part 1: Common Types and Uses
Posted: March 30th, 2023
Fuel flow monitoring systems measure the amount of fuel consumed by a process and are typically used to measure gaseous or liquid fuels. There are many types of fuel monitors used in practice – differential pressure, coriolis, and ultrasonic are […]
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Top Takeaways from the IPCC’s AR6 Synthesis Report: Climate Change 2023
Posted: March 29th, 2023
On March 20, 2023, the United Nations Intergovernmental Panel on Climate Change (IPCC), the world’s leading authoritative body on climate science, released its final installment of its Sixth Assessment Report (AR6) which is the AR6 Synthesis Report: Climate Change 2023. […]
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U.S. EPA Proposes SIP Calls for States with SSM Exemption Provisions
Posted: March 27th, 2023
On February 24, 2023, the United States Environmental Protection Agency (U.S. EPA) proposed to reinstate State Implementation Plan (SIP) Calls for three states and issue new SIP Calls for eight states and local jurisdictions. All of the proposed SIP Calls […]
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U.S. EPA has Finalized NOx Limits to Curb Ozone Transport from non-EGUs in 20 States
Posted: March 22nd, 2023
On March 15, 2023, the U.S. Environmental Protection Agency (EPA) signed a final rule titled Federal “Good Neighbor Plan” for the 2015 Ozone National Ambient Air Quality Standards” (NAAQS). This final rule contains first-time requirements to limit emissions of nitrogen […]
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Pennsylvania RACT III Rule – CEMS Compliance Considerations
Posted: March 21st, 2023
The “RACT III” rule [25 Pennsylvania Code §§129.111-129.115, Additional Reasonably Available Control Technology (RACT) Requirements for Major Sources of nitrogen oxides (NOX) and volatile organic compounds (VOCs) for the 2015 Ozone National Ambient Air Quality Standards (NAAQS)] was approved and […]
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Considerations for Emissions Inventory Reporting in Louisiana
Posted: March 20th, 2023
Facilities emitting criteria pollutants and toxic air pollutants (TAP) in Louisiana may be required by the Louisiana Department of Environmental Quality (LDEQ) to submit an annual emissions inventory (EI) using the Department’s web-based Emissions Reporting and Inventory Center (ERIC). The […]
Read articleWhat Do You Need to Know About Starting a Stack Testing Program?
Posted: March 13th, 2023
When your facility finds they need to do a stack test on a piece of equipment, there will be a number of questions thrown at you. Being proactive will go a long way toward having a smooth and positive experience. […]
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Air Permitting Considerations in Kentucky
Posted: March 6th, 2023
After a record-setting year of economic growth in 2021 according to the Kentucky Cabinet for Economic Development (KCED), the Bluegrass State continues to experience an industrial boom. KCED indicated the bourbon, automotive, chemical, and primary metals industries are just a […]
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EPA Releases Compliance Advisory for Federal Facilities Subject to CAA Chemical Accident Prevention Regulations
Posted: March 6th, 2023
Introduction The 1990 Clean Air Act (CAA) Amendments include Section 112(r), the chemical accident prevention rule, to “provide for the prevention and mitigation of accidental chemical releases”1. The rule requires owners and operators of stationary sources that produce, process, handle, […]
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Recent Revisions to the Miscellaneous Coating Manufacturing NESHAP
Posted: March 1st, 2023
On February 22, 2023, the United States Environmental Protection Agency (U.S. EPA) published a final rule that added metal hazardous air pollutant (HAP) emissions standards to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Miscellaneous Coating Manufacturing (MCM), […]
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