Air Quality

Annual PM2.5 NAAQS Lowered!

Posted: February 8th, 2024

On February 7, 2024, the United States Environmental Protection Agency (U.S. EPA) made the long-awaited announcement that the annual particulate matter less than 2.5 microns (PM2.5) National Ambient Air Quality Standard (NAAQS) will be lowered from 12 micrograms per cubic […]

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2024 Texas Lookahead

Posted: January 30th, 2024

Texas is a very dynamic state with a robust variety of industries that are faced with unique and cumbersome regulatory requirements.  ALL4 closely follows the actions of the Texas Commission on Environmental Quality (TCEQ) and U.S. EPA Region VI. ALL4’s […]

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2024 Look Ahead Part 3

Posted: January 25th, 2024

2024 Look Ahead: Occupational Health and Safety // Victoria Sparks As we look back on 2023, the Occupational Safety and Health Administration (OSHA) was busy – expanding National Emphasis Programs (NEPs), hiring more inspectors, conducting more inspections, and expanding rules […]

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2024 Look Ahead Part 2

Posted: January 18th, 2024

PFAS Expectations for 2024 // Kayla Turney With the new year, we expect to see several of the same issues relating to per- and polyfluoroalkyl substances (PFAS), as well as a handful of new ones to tackle.  While the regulatory […]

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2024 Look Ahead: Chemical Industry Rules and RMP Revisions

Posted: January 18th, 2024

Chemical Industry Rules This year is going to be a big year for the chemical manufacturing industry. The United States Environmental Protection Agency (U.S. EPA) is under a consent decree to finish revisions to several National Emission Standards for Hazardous […]

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PFAS Expectations for 2024

Posted: January 16th, 2024

With the new year, we expect to see several of the same issues relating to per- and polyfluoroalkyl substances (PFAS), as well as a handful of new ones to tackle.  While the regulatory landscape continues to change, there are a […]

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2024 Look Ahead

Posted: January 9th, 2024

Part 1 2024 Look Ahead // Colin McCall Hello to all of our clients, partners, and colleagues as we enter 2024. We are very grateful for the time and work together in 2023 and look forward to another great year […]

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EPA Final Rule Addressing NSPS For EAF & AOD Vessels at Steel Plants

Posted: December 21st, 2023

On August 25th, 2023, the United States Environmental Protection Agency (U.S. EPA) promulgated amendments to the Standards of Performance for New Stationary Sources (NSPS) for electric arc furnaces (EAF) and argon-oxygen decarburization (AOD) vessels. This action is in accordance with […]

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