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Recent SCOTUS Decisions of Interest

Posted: July 2024

Generally, congress makes laws (also known as statutes), the agencies like the U.S. Environmental Protection Agency (EPA) write regulations based on those laws, and the courts judge whether the regulation or implementation of the regulation is within the scope of […]

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More PM2.5 NAAQS Related Updates

Posted: May 2024

There have been more guidance updates and rule making in the last month that will impact both air quality modeling and the designation process for the lowered annual particulate matter less than 2.5 microns (PM2.5) National Ambient Air Quality Standard […]

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So – You Failed a RATA, Now What?

Posted: February 2024

What’s a RATA? A RATA is a Relative Accuracy Test Audit, and it’s typically performed as an annual audit on a continuous emissions monitoring system (CEMS). A third party brings an independently certified CEMS and hooks it up to your […]

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