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Supreme Court Petition Targets EPA’s PM2.5 Standard

8/31/2026

45 6 Full Breakdown

Summary

Story summary

The National Association of Manufacturers led a coalition that petitioned the Supreme Court to overturn the EPA’s PM2.5 rule.
The D.C. Circuit upheld the EPA’s PM2.5 rule on June 26, 2026, allowing an off-cycle revision without a five-year review.
NAM analysis says the 9 µg/m³ standard threatens at least 474 projects, nearly $1 trillion investment and over 122,000 jobs.

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Story summary

The National Association of Manufacturers led a coalition that petitioned the Supreme Court to overturn the EPA’s PM2.5 rule.
The D.C. Circuit upheld the EPA’s PM2.5 rule on June 26, 2026, allowing an off-cycle revision without a five-year review.
NAM analysis says the 9 µg/m³ standard threatens at least 474 projects, nearly $1 trillion investment and over 122,000 jobs.