In this issue, you’ll learn about recent changes to Clean Air Act standards, Supreme Court cases on Waters of the United States, EPA’s new tool for environmental justice, and much more.

• EPA Proposes More Stringent PM_2.5 NAAQS
• The History Behind Waters of the United States and How the Revised 2023 Definition Impacts You
• What You Should Know About EPA’s New Data Portal Increasing Broad PFAS Scrutiny of Industrial Sites
• Got Noise? Effective Hearing Conservation to Protect Your Workforce