U.S. Power Sector: Looking Ahead to 2025
Posted: January 2025
The power sector in the United States is poised to change significantly in the next 25 years. The rate of power generation has remained relatively flat over the past 20 years, largely due to the wide scale deployment of residential […]
Read More2025 Look Ahead
Posted: January 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, […]
Read MoreUPDATE: California Climate Accountability Package (SB-253 and SB-261) Amendment, Timeline, and Enforcement Notice
Posted: January 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 […]
Read MoreU.S. EPA Issues Memo on Adjusting Condensable PM Test Results
Posted: December 2024
On November 21, 2024, the U.S. Environmental Protection Agency (EPA) issued a short Memorandum entitled: Condensable PM Adjustment for Ammonium Sulfate Formation in M202 Test Results. The actual correction method is provided by OTM-59, Method for the Correction of Residual […]
Read MoreDirecting Consultant – Digital Solutions
Posted: November 2024
Job Description ALL4 is seeking a Directing Consultant to join our Digital Solutions (DS) Practice. This individual is a recognized name in the Digital Solution community, acts as a business driver, and is an expert Managing Consultant or Technical Manager […]
Read MoreGood Neighbor Plan Update
Posted: September 2024
The U.S. Environmental Protection Agency (U.S. EPA) published the “Good Neighbor Plan” (GNP), also known as the Ozone Transport Federal Implementation Plan (FIP), in the Federal Register on June 5, 2023. The purpose of the rule is to establish restrictions […]
Read MoreForest Products Industry Newsletter – September 2024
Posted: September 2024
Insights, Updates, Regulatory Topics Subscribe to our Forest Products Industry Newsletter Emerging Regulatory and Technical Topics Pulp and paper ICR: U.S. EPA is planning to issue an Information Collection Request (ICR) to all major source facilities owned by nine companies […]
Read MoreU.S. EPA Finalizes Changes to Rules on Reclassification of Major Sources
Posted: September 2024
The Clean Air Act (CAA) defines a major source of hazardous air pollutant (HAP) emissions as one that has the potential to emit (PTE) 10 tons per year (tpy) or more of any single HAP or 25 tpy or more […]
Read MoreUpdates on the Lowered PM2.5 NAAQS
Posted: September 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 […]
Read MoreU.S. EPA Releases EJSCREEN v.2.3
Posted: July 2024
On July 9, 2024, The United States Environmental Protection Agency (U.S. EPA) released an update of its environmental justice (EJ) screening tool, EJSCREEN version 2.3. The revised tool adds new map layers and two new EJ Indexes, along with reports […]
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