4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
2025 Look Ahead: Occupational Health and Safety
Posted: January 13th, 2025
Looking back on 2024, the Occupational Safety and Health Administration (OSHA) proposed federal rules for heat safety and emergency response workers, increased enforcement around Process Safety Management (PSM) programs, and updated recordkeeping and reporting requirements. As we look ahead to […]
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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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So You’re Impacted By An Updated Regulation… What’s Next for your Digital Tools?
Posted: January 8th, 2025
New and updated regulations occur regularly and often change the required compliance actions. How do you ensure that your digital tools are updated to reflect the latest and greatest regulatory requirements? We’ll step through a high-level process and checklist of […]
Read articleUPDATE: California Climate Accountability Package (SB-253 and SB-261) Amendment, Timeline, and Enforcement Notice
Posted: January 6th, 2025
Since the signing of the California Climate Accountability Package, comprising Senate Bill 253 (SB-253) and the Climate Corporate Data Accountability Act, and Senate Bill 261 (SB-261), Greenhouse Gases: Climate-related Financial Risk, the California Air Resources Board (CARB) has released an […]
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New U.S. EPA Multi-Sector General Permit: PFAS Monitoring Now Required
Posted: January 2nd, 2025
What is the MSGP? The Multisector General Permit (MSGP) is a permit issued by the United States Environmental Protection Agency’s (U.S. EPA) National Pollutant Discharge Elimination System (NPDES) program which regulates stormwater discharges from industrial activities, as defined in 40 […]
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U.S. EPA Finalizes Revisions to Appendix W Modeling Guidelines
Posted: December 19th, 2024
On November 20, 2024, the United States Environmental Protection Agency (U.S. EPA) published the final rule revising 40 CFR Part 51 Appendix W: Guideline on Air Quality Models (Appendix W). Appendix W outlines the U.S. EPA […]
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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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Final Amendments to National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing
Posted: December 11th, 2024
The U.S. Environmental Protection Agency (U.S. EPA) has published final amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Rubber Tire Manufacturing (40 CFR 63, Subpart XXXX) to establish emissions standards for the rubber processing subcategory. The […]
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