4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
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 […]
Read articleNew U.S. EPA Multi-Sector General Permit: PFAS Monitoring Now Required
Posted: January 2nd, 2025
February 2026 Update U.S. EPA has indicated, through messages sent to facilities with in-progress Notices of Intent (NOI) and/or with coverage under the current U.S. EPA MSGP, that the renewed MSGP will not be issued prior to expiration of […]
Read articleU.S. EPA Finalizes Revisions to Appendix W Modeling Guidelines
Posted: December 19th, 2024
Author: Joe Sabato 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 preferred […]
Read articleU.S. EPA Releases TANKS 5.1
Posted: December 18th, 2024
Author: Lindsey Kroos 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 […]
Read articleU.S. EPA Finalizes Revisions to the Secondary NAAQS
Posted: December 18th, 2024
Author: Rich Hamel 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 […]
Read articleFinal 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 […]
Read articleU.S. EPA Issues Memo on Adjusting Condensable PM Test Results
Posted: December 10th, 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 articleU.S. EPA Releases Proposed Updates to Stationary Combustion Turbines NSPS
Posted: December 4th, 2024
On November 22, 2024, U.S. Environmental Protection Agency (EPA) proposed the first of what is expected to be three new or revised rules related to the emissions of criteria pollutants, air toxics, and greenhouse gasses (GHG) for stationary combustion turbines. […]
Read articleNew Lead Regulations in California: A Closer Look at Changes to the California Lead Standard
Posted: December 4th, 2024
With new lead standards approved by the California Occupational Safety and Health Standards Board (Cal/OSHA) on February 15, 2024, California is moving toward greater protections for employees exposed to lead. These changes, set to take effect on January 1, 2025, […]
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