4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Data Quality Part 6: What Have We Learned
Posted: October 4th, 2023
We’ve made it through 5 articles in this series (with a bunch of stories and analogies along the way). We started this journey with this sentence: Defining data quality, and implementing a data quality program, furthers the goal that […]
Read article
U.S. EPA Proposes Changes to Rules on Reclassification of Major Sources
Posted: October 3rd, 2023
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 article
Combustible Dust: A Hidden Hazard
Posted: October 2nd, 2023
In many industries, safety concerns revolve around visible hazards such as machinery, chemicals, and fire. However, there’s a lesser-known danger that can lead to catastrophic incidents: combustible dust. This seemingly innocuous substance, often formed during various processes, has the potential […]
Read article
Life Cycle Assessment of Lithium Ion Batteries
Posted: September 28th, 2023
Life Cycle Assessment (LCA) is a systematic tool used to assess the environmental impact of a product, process, or service throughout its entire life cycle. LCA looks at the entire life of a product or process, from extraction of raw […]
Read article
California Legislature Passes the Climate Accountability Package for SB-253, the Climate Corporate Data Accountability Act, and SB-261, Greenhouse Gases: Climate-related Financial Risk
Posted: September 27th, 2023
California legislature recently passed the Climate Accountability Package, a pair of bills introduced by California senators on January 30th, 2023, to improve transparency and standardize disclosures relating to greenhouse gas emissions and climate-related risk. The Climate Accountability Package contains two […]
Read article
Greenhouse Gas Reporting Rules: Summary of Proposed Changes
Posted: September 26th, 2023
The United States Environmental Protection Agency (U.S. EPA) has been working on updates to the Greenhouse Gas Reporting Rule (GHGRR) contained in 40 CFR Part 98 and published the latest proposed rule revisions on August 1, 2023. These revisions supplement […]
Read article
Unlocking Opportunities: Pennsylvania’s New Environmental Justice Policy Takes Effect on September 16, 2023
Posted: September 20th, 2023
On September 16th, 2023, the Pennsylvania Department of Environmental Protection (PA DEP) adopted an interim final Environmental Justice (EJ) policy (Interim Final EJ Policy) that introduces new requirements for projects classified as “trigger projects” when they apply for permits from […]
Read article
UN Sustainable Development Goals – A Primer
Posted: September 19th, 2023
In 2015, the United Nations (UN) proposed 17 goals based on various topics, with the aim of improving quality of life and the environment around the world. These 17 “Sustainable Development Goals” (SDGs) were created to replace the outdated Millennium […]
Read article
Lithium-Ion Battery Fires
Posted: September 18th, 2023
Lithium-ion fires are a concerning and potentially hazardous phenomenon that can occur when the delicate balance within lithium-ion batteries is disrupted, leading to thermal runaway and combustion. These fires are characterized by their intense heat, rapid spread, and the release […]
Read article
The End of U.S. EPA’s Reactivation Policy?
Posted: September 13th, 2023
The U.S. Court of Appeals for the Third Circuit has ruled that the U.S. EPA’s “Reactivation Policy” violates the Clean Air Act (CAA). What is U.S. EPA’s “Reactivation Policy”? The “Reactivation Policy” (Policy) addresses whether existing major stationary sources that […]
Read article