4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
D.C. Circuit Upholds Annual PM2.5 NAAQS Revision to 9.0 µg/m³
Posted: July 2nd, 2026
Author: Dan Dix On June 26, 2026, the U.S. Court of Appeals for the District of Columbia Circuit issued its decision upholding the U.S. Environmental Protection Agency’s (EPA’s) February 2024 rule revising the primary annual PM2.5 National Ambient Air Quality […]
Read articleOregon SB 582 Producer Reporting Has Begun – Is Your Company Prepared?
Posted: July 2nd, 2026
Author: Cambre Codington and Abigail Roman-White Oregon’s Senate Bill (SB) 582, the Plastic Pollution and Recycling Modernization Act, also referred to as the Recycling Modernization Act (RMA), is no longer a future-state extended producer responsibility (EPR) requirement. The law has […]
Read articleJune 2026 CARB California SB 253 Updates
Posted: July 2nd, 2026
Author: Corey Prigent The California Air Resources Board (CARB) approved the initial regulation under the Climate Corporate Data Accountability Act [Senate Bill (SB) 253] on February 26, 2026. A workshop was held in March to discuss implementation and the next […]
Read articleEnvironmental Justice Developments in Minnesota and Michigan
Posted: June 25th, 2026
Author: Joe Sabato and Jess Black As environmental justice (EJ) considerations have been significantly deprioritized in the current U.S. Environmental Protection Agency (U.S. EPA) agenda, some may question whether environmental equity remains a viable regulatory priority. However, in states that […]
Read article2025 Annual U.S. Greenhouse Gas Inventory
Posted: June 25th, 2026
Author: Josh Bradford The United States Environmental Protection Agency (U.S. EPA) has historically published an annual Inventory of U.S. Greenhouse Gas (GHG) Emissions each year, compiling data ranging back to 1990. The report provides information on the sources and sinks […]
Read articleNorth Carolina NPDES Industrial Stormwater General Permit 2026 Updates – What You Need to Know General Background of Stormwater Permits
Posted: June 17th, 2026
Author: Alex Ges The North Carolina Department of Environmental Quality (NCDEQ) has published the draft permits and factsheets for six National Pollutant Discharge Elimination System (NPDES) Industrial Stormwater General Permits. The proposed reissuances of these six draft General Permits include […]
Read articleMassachusetts Industrial Wastewater Holding Tanks: What Facilities Should Know About 314 CMR 18 Compliance
Posted: June 17th, 2026
Author: Shawn Murphy Industrial wastewater holding tanks are common across many industries throughout Massachusetts. Yet many facility owners are unaware that these systems may be subject to specific regulatory requirements under Massachusetts Department of Environmental Protection (MassDEP) regulation 314 CMR […]
Read articleInclusion of Microplastics in U.S. EPA Draft Contaminant Candidate List
Posted: June 17th, 2026
Author: Aidan Decker Microplastics, which are coming under increased public scrutiny, were included in the U.S. Environmental Protection Agency’s (U.S. EPA) draft Sixth Contaminant Candidate List (CCL 6) on April 2, 2026. CCL 6 is a list of contaminants that […]
Read articleIllinois Data Centers – Fears for Tiers
Posted: June 11th, 2026
Author: Kelly Blackmon Data centers in the state of Illinois may have some questions ─ or fears ─ about engine Tiers in their future. Big changes are coming that will impact data centers looking at future emergency engines: there’s a […]
Read articleNorth Carolina Takes Decisive Action in Regulating PFAS in Wastewater – 2026 Update
Posted: June 11th, 2026
Authors: A.J. Golding & Kennedy Schroeder On September 11, 2024, the Water Quality Committee of North Carolina Department of Environmental Quality’s (NCDEQ) Environmental Management Commission (EMC) approved a motion to establish per- and polyfluoroalkyl substances (PFAS) monitoring for “every industrial […]
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